name
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large_stringclasses 2
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large_stringclasses 6
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| qtext
large_stringlengths 5
1.24k
| ra
int64 1
5
| answers
large list |
|---|---|---|---|---|---|---|
Cuaderno_2013_1_B
|
2013
|
biology
| 1 |
The excitatory postsynaptic potentials:
| 3 |
[
{
"aid": 1,
"atext": "They are all or nothing."
},
{
"aid": 2,
"atext": "They are hyperpolarizing."
},
{
"aid": 3,
"atext": "They can be added."
},
{
"aid": 4,
"atext": "They spread long distances."
},
{
"aid": 5,
"atext": "They present a refractory period."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 2 |
Motor plate is the union between the motor neuron and the:
| 2 |
[
{
"aid": 1,
"atext": "Smooth muscle."
},
{
"aid": 2,
"atext": "Skeletal muscle"
},
{
"aid": 3,
"atext": "Cardiac muscle"
},
{
"aid": 4,
"atext": "Muscle spindle"
},
{
"aid": 5,
"atext": "Tendon."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 3 |
DO NOT generate action potentials:
| 2 |
[
{
"aid": 1,
"atext": "Smooth muscle fibers."
},
{
"aid": 2,
"atext": "Bipolar neurons of the retina."
},
{
"aid": 3,
"atext": "Skeletal striated muscle fibers."
},
{
"aid": 4,
"atext": "Cardiac muscle fibers."
},
{
"aid": 5,
"atext": "Ganglion neurons of the retina."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 4 |
In the initiation of voluntary movements the first area that is activated is:
| 1 |
[
{
"aid": 1,
"atext": "Premotor cortex."
},
{
"aid": 2,
"atext": "Primary motor cortex."
},
{
"aid": 3,
"atext": "Brain stem"
},
{
"aid": 4,
"atext": "Cerebellum."
},
{
"aid": 5,
"atext": "Basal ganglia"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 5 |
The corpuscles of Pacini:
| 4 |
[
{
"aid": 1,
"atext": "They are innervated by unmyelinated fibers."
},
{
"aid": 2,
"atext": "They are mechanoreceptors of slow adaptation."
},
{
"aid": 3,
"atext": "They have small receptor fields."
},
{
"aid": 4,
"atext": "They are located in deep areas of the dermis."
},
{
"aid": 5,
"atext": "They are thermoreceptors."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 6 |
The color of the eyes depends on the pigment present in:
| 3 |
[
{
"aid": 1,
"atext": "Pupil."
},
{
"aid": 2,
"atext": "Cornea."
},
{
"aid": 3,
"atext": "Iris."
},
{
"aid": 4,
"atext": "Choroid"
},
{
"aid": 5,
"atext": "Retina."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 7 |
The cones:
| 3 |
[
{
"aid": 1,
"atext": "They are preferably in the peripheral retina."
},
{
"aid": 2,
"atext": "They have membranous discs stacked in their outer segment."
},
{
"aid": 3,
"atext": "They have less sensitivity than the canes."
},
{
"aid": 4,
"atext": "Sinaptan with ganglionic neurons."
},
{
"aid": 5,
"atext": "Sinaptan only on center bipolar \"on\"."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 8 |
In the layer closest to the pigment epithelium of the retina are the cells:
| 2 |
[
{
"aid": 1,
"atext": "Ganglionares"
},
{
"aid": 2,
"atext": "Cones and canes."
},
{
"aid": 3,
"atext": "Amacrinas."
},
{
"aid": 4,
"atext": "Bipolar"
},
{
"aid": 5,
"atext": "Horizontal"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 9 |
The intrafusal fibers:
| 5 |
[
{
"aid": 1,
"atext": "They contract in their central region."
},
{
"aid": 2,
"atext": "They generate most of the muscle tension."
},
{
"aid": 3,
"atext": "They are arranged in series with extrafusal fibers."
},
{
"aid": 4,
"atext": "They are innervated by alpha motor neurons."
},
{
"aid": 5,
"atext": "They receive sensory innervation of \"Ia\" fibers."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 10 |
The Purkinje cells of the cerebellum receive direct input from:
| 3 |
[
{
"aid": 1,
"atext": "Spinal neurons"
},
{
"aid": 2,
"atext": "Neurons of deep cerebellar nuclei."
},
{
"aid": 3,
"atext": "Climbing fibers"
},
{
"aid": 4,
"atext": "Mossy fibers."
},
{
"aid": 5,
"atext": "Pyramidal neurons of cerebral cortex."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 11 |
They release noradrenaline the:
| 2 |
[
{
"aid": 1,
"atext": "Sympathetic preganglionic fibers."
},
{
"aid": 2,
"atext": "Sympathetic Postganglionic Fibers"
},
{
"aid": 3,
"atext": "Preganglionic parasympathetic fibers"
},
{
"aid": 4,
"atext": "Postganglionic parasympathetic fibers"
},
{
"aid": 5,
"atext": "Only the chromaffin cells."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 12 |
Circadian rhythms are established in:
| 2 |
[
{
"aid": 1,
"atext": "Pineal gland."
},
{
"aid": 2,
"atext": "Suprachiasmatic nucleus."
},
{
"aid": 3,
"atext": "Retina."
},
{
"aid": 4,
"atext": "Spinal cord."
},
{
"aid": 5,
"atext": "Centromedianic thalamic nucleus."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 13 |
A motor neuron and all the muscle fibers that it innervates constitute:
| 2 |
[
{
"aid": 1,
"atext": "Motor plate."
},
{
"aid": 2,
"atext": "Motor unit"
},
{
"aid": 3,
"atext": "Neuromuscular junction"
},
{
"aid": 4,
"atext": "Motor synapse"
},
{
"aid": 5,
"atext": "Motor filament"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 14 |
In the ear of mammals:
| 3 |
[
{
"aid": 1,
"atext": "The sterocilies of the hair cells contact the basilar membrane."
},
{
"aid": 2,
"atext": "The tympanic ramp contains endolymph."
},
{
"aid": 3,
"atext": "The basilar membrane is wider and more flexible at the level of the helicotrema."
},
{
"aid": 4,
"atext": "The sensory cells are those of Deiter."
},
{
"aid": 5,
"atext": "The oval membrane has a larger surface than the tympanic membrane."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 15 |
Calcitriol or active Vitamin D induces:
| 2 |
[
{
"aid": 1,
"atext": "Hypocalcemia"
},
{
"aid": 2,
"atext": "Synthesis of calbindin in enterocytes."
},
{
"aid": 3,
"atext": "Calcium secretion in urine."
},
{
"aid": 4,
"atext": "PTH secretion."
},
{
"aid": 5,
"atext": "Decrease in intestinal absorption of phosphate."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 16 |
Increase the activity of Na + / K + -ATPase:
| 2 |
[
{
"aid": 1,
"atext": "Insulin."
},
{
"aid": 2,
"atext": "Aldosterone"
},
{
"aid": 3,
"atext": "ACTH."
},
{
"aid": 4,
"atext": "Atrial natriuretic peptide."
},
{
"aid": 5,
"atext": "ADH."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 17 |
The glucocorticoids:
| 3 |
[
{
"aid": 1,
"atext": "Increase ACTH levels."
},
{
"aid": 2,
"atext": "They stimulate the secretion of CRH."
},
{
"aid": 3,
"atext": "They are anti-inflammatory."
},
{
"aid": 4,
"atext": "They are hypoglycemic."
},
{
"aid": 5,
"atext": "Increase immune responses."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 18 |
Placental lactogen has equivalent effects to:
| 1 |
[
{
"aid": 1,
"atext": "GH"
},
{
"aid": 2,
"atext": "Insulin."
},
{
"aid": 3,
"atext": "Oxytocin"
},
{
"aid": 4,
"atext": "Estrogens"
},
{
"aid": 5,
"atext": "FSH."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 19 |
Lacks hypothalamic control:
| 1 |
[
{
"aid": 1,
"atext": "Glucagon."
},
{
"aid": 2,
"atext": "ACTH."
},
{
"aid": 3,
"atext": "Prolactin"
},
{
"aid": 4,
"atext": "GH"
},
{
"aid": 5,
"atext": "LH"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 20 |
The kidneys secrete the hormone:
| 1 |
[
{
"aid": 1,
"atext": "Calcitriol."
},
{
"aid": 2,
"atext": "Renina"
},
{
"aid": 3,
"atext": "Angiotensin II."
},
{
"aid": 4,
"atext": "Aldosterone"
},
{
"aid": 5,
"atext": "Calcitonin"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 21 |
The neurohypophysis:
| 1 |
[
{
"aid": 1,
"atext": "It is a continuation of the hypothalamus."
},
{
"aid": 2,
"atext": "It presents dual hypothalamic control."
},
{
"aid": 3,
"atext": "It receives hypothalamic hormones via blood."
},
{
"aid": 4,
"atext": "It is irrigated by the portal system hypothalamus pituitary gland."
},
{
"aid": 5,
"atext": "It produces prolactin."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 22 |
GH secretion:
| 2 |
[
{
"aid": 1,
"atext": "It stops after puberty."
},
{
"aid": 2,
"atext": "Increase during the fast."
},
{
"aid": 3,
"atext": "It decreases during sleep."
},
{
"aid": 4,
"atext": "It is stimulated by somatostatin."
},
{
"aid": 5,
"atext": "It is inhibited by exercise."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 23 |
Thyroid hormones inhibit:
| 5 |
[
{
"aid": 1,
"atext": "The basal metabolism."
},
{
"aid": 2,
"atext": "The production of body heat."
},
{
"aid": 3,
"atext": "Growth."
},
{
"aid": 4,
"atext": "The development and maturation of the central nervous system."
},
{
"aid": 5,
"atext": "The secretion of TSH."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 24 |
Prolactin stimulates the:
| 1 |
[
{
"aid": 1,
"atext": "Milk secretion"
},
{
"aid": 2,
"atext": "Milky ejection."
},
{
"aid": 3,
"atext": "Deposit of fat in the breasts."
},
{
"aid": 4,
"atext": "Formation of the mammary ducts."
},
{
"aid": 5,
"atext": "Formation of mammary secretory cells."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 25 |
The second heart sound coincides with:
| 5 |
[
{
"aid": 1,
"atext": "End of ventricular diastole."
},
{
"aid": 2,
"atext": "End of atrial diastole."
},
{
"aid": 3,
"atext": "Opening of the aortic valve."
},
{
"aid": 4,
"atext": "Atrial systole"
},
{
"aid": 5,
"atext": "Closing of the semilunar valves."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 26 |
The activation of arterial baroreceptors causes:
| 2 |
[
{
"aid": 1,
"atext": "Stimulation of the bulbar pressure center."
},
{
"aid": 2,
"atext": "Activation of the parasympathetic."
},
{
"aid": 3,
"atext": "Increased blood pressure."
},
{
"aid": 4,
"atext": "Tachycardia."
},
{
"aid": 5,
"atext": "Positive inotropic effect."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 27 |
The blood flow velocity is maximum in:
| 1 |
[
{
"aid": 1,
"atext": "Great arteries"
},
{
"aid": 2,
"atext": "Distribution arteries."
},
{
"aid": 3,
"atext": "Arterioles"
},
{
"aid": 4,
"atext": "Capillaries"
},
{
"aid": 5,
"atext": "Venules"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 28 |
They are essential for blood coagulation:
| 3 |
[
{
"aid": 1,
"atext": "Red blood cells."
},
{
"aid": 2,
"atext": "White blood cells"
},
{
"aid": 3,
"atext": "Platelets."
},
{
"aid": 4,
"atext": "The lymph."
},
{
"aid": 5,
"atext": "Serum glucose"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 29 |
Fibrinogen is activated by:
| 3 |
[
{
"aid": 1,
"atext": "Platelet stopper"
},
{
"aid": 2,
"atext": "Plasmina."
},
{
"aid": 3,
"atext": "Thrombin"
},
{
"aid": 4,
"atext": "Thromboplastin."
},
{
"aid": 5,
"atext": "Factor von Willebrand."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 30 |
Ventricular filling is greater during:
| 2 |
[
{
"aid": 1,
"atext": "Isovolumetric ventricular relaxation."
},
{
"aid": 2,
"atext": "First third of the ventricular diastole."
},
{
"aid": 3,
"atext": "Atrial systole"
},
{
"aid": 4,
"atext": "Intermediate phase of ventricular diastole."
},
{
"aid": 5,
"atext": "It is uniform."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 31 |
The main vessels that regulate blood flow are:
| 2 |
[
{
"aid": 1,
"atext": "Arteries"
},
{
"aid": 2,
"atext": "Arterioles"
},
{
"aid": 3,
"atext": "Capillaries"
},
{
"aid": 4,
"atext": "Venules"
},
{
"aid": 5,
"atext": "Veins."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 32 |
After ventricular systole, the volume of blood in the ventricle is:
| 2 |
[
{
"aid": 1,
"atext": "Zero."
},
{
"aid": 2,
"atext": "The telesistolic."
},
{
"aid": 3,
"atext": "The systolic."
},
{
"aid": 4,
"atext": "The end-diastolic."
},
{
"aid": 5,
"atext": "Greater in the right ventricle than in the left."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 33 |
The QT interval of the electrocardiogram indicates the duration of:
| 2 |
[
{
"aid": 1,
"atext": "Atrial contraction"
},
{
"aid": 2,
"atext": "Ventricular contraction."
},
{
"aid": 3,
"atext": "Ventricular relaxation"
},
{
"aid": 4,
"atext": "Atrial relaxation"
},
{
"aid": 5,
"atext": "Delay in the atrioventricular node."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 34 |
Activates the renin-angiotensin aldosterone system an increase in:
| 5 |
[
{
"aid": 1,
"atext": "Blood pressure."
},
{
"aid": 2,
"atext": "Parasympathetic activity"
},
{
"aid": 3,
"atext": "Concentration of Ca2 + in plasma."
},
{
"aid": 4,
"atext": "Na + concentration in plasma."
},
{
"aid": 5,
"atext": "Sympathetic activity"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 35 |
During ventricular systole:
| 5 |
[
{
"aid": 1,
"atext": "All ventricular blood is expelled."
},
{
"aid": 2,
"atext": "Intraventricular pressure is equal in both ventricles."
},
{
"aid": 3,
"atext": "The ventricular volume begins to decrease from the beginning of the contraction."
},
{
"aid": 4,
"atext": "The atrio-ventricular valves are open."
},
{
"aid": 5,
"atext": "The atria are relaxed."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 36 |
The lymphatic flow from the feet:
| 2 |
[
{
"aid": 1,
"atext": "It increases when standing up."
},
{
"aid": 2,
"atext": "Increase by external compression."
},
{
"aid": 3,
"atext": "Increases when decreasing capillary permeability."
},
{
"aid": 4,
"atext": "It decreases during inspiration."
},
{
"aid": 5,
"atext": "Decrease by exercise."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 38 |
The reabsorption of glucose in the nephron:
| 3 |
[
{
"aid": 1,
"atext": "It has no maximum rate."
},
{
"aid": 2,
"atext": "It is less than 50% of the filtered."
},
{
"aid": 3,
"atext": "It is done in the proximal tubule."
},
{
"aid": 4,
"atext": "It is mediated by insulin."
},
{
"aid": 5,
"atext": "It is by simple diffusion."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 39 |
Urine is hypoosmolar with respect to plasma in:
| 4 |
[
{
"aid": 1,
"atext": "Bowman's capsule."
},
{
"aid": 2,
"atext": "Proximal tubule"
},
{
"aid": 3,
"atext": "Medulla area of the loop of Henle."
},
{
"aid": 4,
"atext": "Initial zone of the distal tubule."
},
{
"aid": 5,
"atext": "Collecting tubule in the presence of ADH."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 40 |
In the digestive system, the vagus:
| 2 |
[
{
"aid": 1,
"atext": "Stimulates the contraction of the cardia."
},
{
"aid": 2,
"atext": "The gastro-colic reflex mediates."
},
{
"aid": 3,
"atext": "Decreases the secretion of gastric acid."
},
{
"aid": 4,
"atext": "Inhibits the secretion of pancreatic bicarbonate."
},
{
"aid": 5,
"atext": "It is not choralgogo."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 42 |
Inhibits gastrin secretion:
| 5 |
[
{
"aid": 1,
"atext": "Parasympathetic stimulation."
},
{
"aid": 2,
"atext": "Sight, aroma and taste of the food."
},
{
"aid": 3,
"atext": "Stomach distension"
},
{
"aid": 4,
"atext": "Presence of proteins in the stomach."
},
{
"aid": 5,
"atext": "Somatostatin."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 43 |
Alveolar pressure exceeds atmospheric pressure:
| 3 |
[
{
"aid": 1,
"atext": "In the initial phase of inspiration."
},
{
"aid": 2,
"atext": "In the middle phase of inspiration."
},
{
"aid": 3,
"atext": "In the middle phase of an expiration."
},
{
"aid": 4,
"atext": "At the end of expiration."
},
{
"aid": 5,
"atext": "At the end of the inspiration."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 44 |
The anatomical dead space:
| 3 |
[
{
"aid": 1,
"atext": "It is always greater than the physiological one."
},
{
"aid": 2,
"atext": "Secret surfactants."
},
{
"aid": 3,
"atext": "Includes medium-sized bronchioles."
},
{
"aid": 4,
"atext": "It allows gaseous exchange."
},
{
"aid": 5,
"atext": "Includes the volume of inspiratory reserve."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 45 |
If the arterial pO2 decreases to 60 mm of Hg:
| 4 |
[
{
"aid": 1,
"atext": "Decreases ventilation."
},
{
"aid": 2,
"atext": "Central chemoreceptors are activated."
},
{
"aid": 3,
"atext": "The central chemoreceptors are depressed."
},
{
"aid": 4,
"atext": "The arterial chemoreceptors are activated."
},
{
"aid": 5,
"atext": "It produces loss of consciousness."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 46 |
The pyramidal neurons are in:
| 2 |
[
{
"aid": 1,
"atext": "Cerebellum."
},
{
"aid": 2,
"atext": "Brain."
},
{
"aid": 3,
"atext": "Spinal cord."
},
{
"aid": 4,
"atext": "Spinal ganglia."
},
{
"aid": 5,
"atext": "Hypophysis."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 47 |
The lipid inclusion of unilocular adipocytes is surrounded by:
| 3 |
[
{
"aid": 1,
"atext": "Actin filaments."
},
{
"aid": 2,
"atext": "Myosin filaments."
},
{
"aid": 3,
"atext": "Filaments of vimentin."
},
{
"aid": 4,
"atext": "Microtubules"
},
{
"aid": 5,
"atext": "Membrane from the smooth endoplasmic reticulum."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 48 |
The presence of phosphatidylserine on the cell surface indicates:
| 2 |
[
{
"aid": 1,
"atext": "Cellular senescence"
},
{
"aid": 2,
"atext": "Apoptosis"
},
{
"aid": 3,
"atext": "Necrosis."
},
{
"aid": 4,
"atext": "Mitosis."
},
{
"aid": 5,
"atext": "Hormone stimulation"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 49 |
The hydrolases of the lysosomes act in medium:
| 1 |
[
{
"aid": 1,
"atext": "Acid."
},
{
"aid": 2,
"atext": "Basic."
},
{
"aid": 3,
"atext": "Neutral."
},
{
"aid": 4,
"atext": "It depends on the material to digest."
},
{
"aid": 5,
"atext": "At any pH."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 50 |
Heterochromatin lacks:
| 4 |
[
{
"aid": 1,
"atext": "Histone H1."
},
{
"aid": 2,
"atext": "Nucleosomes"
},
{
"aid": 3,
"atext": "Exons"
},
{
"aid": 4,
"atext": "Transcriptional activity"
},
{
"aid": 5,
"atext": "Origins of replication."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 51 |
The epithelium of the epidermis is:
| 1 |
[
{
"aid": 1,
"atext": "Stratified keratinized plane."
},
{
"aid": 2,
"atext": "Stratified non-keratinized plane."
},
{
"aid": 3,
"atext": "Simple keratinized cylindrical."
},
{
"aid": 4,
"atext": "Keratinized stratified cylindrical."
},
{
"aid": 5,
"atext": "Cubic stratified."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 52 |
The cell is destroyed to release the secretion:
| 4 |
[
{
"aid": 1,
"atext": "Merocrine"
},
{
"aid": 2,
"atext": "Apocrine"
},
{
"aid": 3,
"atext": "Endocrine"
},
{
"aid": 4,
"atext": "Holocrine"
},
{
"aid": 5,
"atext": "Paracrine"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 53 |
Among the following, the first precursor cell of neutrophil granulocytes is:
| 2 |
[
{
"aid": 1,
"atext": "Monoblast."
},
{
"aid": 2,
"atext": "Myeloblast."
},
{
"aid": 3,
"atext": "Metamielocito."
},
{
"aid": 4,
"atext": "Cell in band (or in staff)"
},
{
"aid": 5,
"atext": "Promyelocyte"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 54 |
The system in T:
| 4 |
[
{
"aid": 1,
"atext": "It is present in all muscle cells without exception."
},
{
"aid": 2,
"atext": "It is part of the sarcoplasmic reticulum."
},
{
"aid": 3,
"atext": "It has an ATPase activated by Ca2 +."
},
{
"aid": 4,
"atext": "It is a tubular invagination of the plasma membrane."
},
{
"aid": 5,
"atext": "Releases Ca2 + to the cytosol during recruitment."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 55 |
In eukaryotic cells the lipids of the membrane are synthesized mainly in:
| 3 |
[
{
"aid": 1,
"atext": "Rough endoplasmic reticulum."
},
{
"aid": 2,
"atext": "Golgi apparatus."
},
{
"aid": 3,
"atext": "Smooth endoplasmic reticulum."
},
{
"aid": 4,
"atext": "Mitochondria"
},
{
"aid": 5,
"atext": "Ribosomes"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 56 |
Fibrous cartilage is typical of:
| 4 |
[
{
"aid": 1,
"atext": "Windpipe."
},
{
"aid": 2,
"atext": "Bronchi"
},
{
"aid": 3,
"atext": "Auricular pavilion"
},
{
"aid": 4,
"atext": "Intervertebral discs."
},
{
"aid": 5,
"atext": "External auditive conduct."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 57 |
Presents centroacinosas cells the gland:
| 4 |
[
{
"aid": 1,
"atext": "Parotid."
},
{
"aid": 2,
"atext": "Submaxillary"
},
{
"aid": 3,
"atext": "Sublingual"
},
{
"aid": 4,
"atext": "Pancreas."
},
{
"aid": 5,
"atext": "Liver."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 58 |
The continuous capillaries are typical of:
| 1 |
[
{
"aid": 1,
"atext": "Central Nervous System."
},
{
"aid": 2,
"atext": "Liver."
},
{
"aid": 3,
"atext": "Glands"
},
{
"aid": 4,
"atext": "Kidney."
},
{
"aid": 5,
"atext": "Digestive tube."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 59 |
The Müller cells of the retina are:
| 3 |
[
{
"aid": 1,
"atext": "Modified neurons."
},
{
"aid": 2,
"atext": "Glandular"
},
{
"aid": 3,
"atext": "Neurogliales of support."
},
{
"aid": 4,
"atext": "Of the microglia."
},
{
"aid": 5,
"atext": "Of the pigmentary layer."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 61 |
The ribosomal subunits are formed in the:
| 2 |
[
{
"aid": 1,
"atext": "Nucleoplasm."
},
{
"aid": 2,
"atext": "Nucleolus"
},
{
"aid": 3,
"atext": "Nuclear sheet."
},
{
"aid": 4,
"atext": "Nuclear pore."
},
{
"aid": 5,
"atext": "Cytoplasm."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 62 |
The nuclear lamina is formed by:
| 3 |
[
{
"aid": 1,
"atext": "Actina."
},
{
"aid": 2,
"atext": "Tubulina."
},
{
"aid": 3,
"atext": "Intermediate filaments"
},
{
"aid": 4,
"atext": "Fibronectin"
},
{
"aid": 5,
"atext": "Laminin"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 63 |
Importin intervenes in the transport of proteins from the cytoplasm to:
| 1 |
[
{
"aid": 1,
"atext": "Nucleus."
},
{
"aid": 2,
"atext": "Endoplasmic reticulum."
},
{
"aid": 3,
"atext": "Mitochondria."
},
{
"aid": 4,
"atext": "Peroxisome"
},
{
"aid": 5,
"atext": "Lysosome"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 64 |
They are formed by maturation of late endosomes:
| 1 |
[
{
"aid": 1,
"atext": "Lysosomes"
},
{
"aid": 2,
"atext": "Phagosomes"
},
{
"aid": 3,
"atext": "Multivesicular bodies."
},
{
"aid": 4,
"atext": "Secretion granules"
},
{
"aid": 5,
"atext": "Proteosomes"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 65 |
The cell displacement by creep depends on:
| 4 |
[
{
"aid": 1,
"atext": "Cilia."
},
{
"aid": 2,
"atext": "Stereocilios."
},
{
"aid": 3,
"atext": "Flagella."
},
{
"aid": 4,
"atext": "Actin filaments."
},
{
"aid": 5,
"atext": "Microvilli."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 66 |
They have their own ribosomes:
| 5 |
[
{
"aid": 1,
"atext": "Lysosomes"
},
{
"aid": 2,
"atext": "Peroxisomes"
},
{
"aid": 3,
"atext": "Endosomes"
},
{
"aid": 4,
"atext": "Secretion granules"
},
{
"aid": 5,
"atext": "Mitochondria"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 67 |
Kinesin and dynein are:
| 2 |
[
{
"aid": 1,
"atext": "Adhesion proteins."
},
{
"aid": 2,
"atext": "Microtubular motors."
},
{
"aid": 3,
"atext": "Degradative enzymes"
},
{
"aid": 4,
"atext": "Components of the vesicular cover."
},
{
"aid": 5,
"atext": "Transcriptional factors."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 68 |
They produce myelin in the central nervous system:
| 5 |
[
{
"aid": 1,
"atext": "Astrocytes"
},
{
"aid": 2,
"atext": "Ependymal cells."
},
{
"aid": 3,
"atext": "Satellite cells."
},
{
"aid": 4,
"atext": "Schwann cells."
},
{
"aid": 5,
"atext": "Oligodendrocytes"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 69 |
It does NOT occur during apoptosis:
| 1 |
[
{
"aid": 1,
"atext": "Rupture of the plasma membrane."
},
{
"aid": 2,
"atext": "Condensation of chromatin."
},
{
"aid": 3,
"atext": "Collapse of the cytoskeleton."
},
{
"aid": 4,
"atext": "Fragmentation of DNA"
},
{
"aid": 5,
"atext": "Formation of apoptotic bodies."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 70 |
The desmosomes:
| 5 |
[
{
"aid": 1,
"atext": "Communicate the cytoplasms of contiguous cells."
},
{
"aid": 2,
"atext": "They seal the intercellular space."
},
{
"aid": 3,
"atext": "They surround the entire cell perimeter."
},
{
"aid": 4,
"atext": "They connect the cell to the basal lamina."
},
{
"aid": 5,
"atext": "They are point intercellular adhesive bonds."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 71 |
The tissue is avascular:
| 1 |
[
{
"aid": 1,
"atext": "Cartilaginous."
},
{
"aid": 2,
"atext": "Adipose."
},
{
"aid": 3,
"atext": "Osseous."
},
{
"aid": 4,
"atext": "Muscular."
},
{
"aid": 5,
"atext": "Nervous."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 72 |
The goblet cells belong to the tissue:
| 1 |
[
{
"aid": 1,
"atext": "Epithelial."
},
{
"aid": 2,
"atext": "Conjunctive."
},
{
"aid": 3,
"atext": "Cartilaginous."
},
{
"aid": 4,
"atext": "Osseous."
},
{
"aid": 5,
"atext": "Adipose."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 73 |
Mast cells or mast cells belong to the tissue:
| 2 |
[
{
"aid": 1,
"atext": "Epithelial."
},
{
"aid": 2,
"atext": "Conjunctive."
},
{
"aid": 3,
"atext": "Adipose"
},
{
"aid": 4,
"atext": "Lymphoid"
},
{
"aid": 5,
"atext": "Nervous."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 74 |
They produce bone resorption:
| 3 |
[
{
"aid": 1,
"atext": "Fibroblasts."
},
{
"aid": 2,
"atext": "Osteoblasts"
},
{
"aid": 3,
"atext": "Osteoclasts."
},
{
"aid": 4,
"atext": "Osteocytes"
},
{
"aid": 5,
"atext": "Osteona."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 75 |
They are fragments of the cytoplasm of a precursor cell:
| 4 |
[
{
"aid": 1,
"atext": "Lymphocytes"
},
{
"aid": 2,
"atext": "Megakaryocytes"
},
{
"aid": 3,
"atext": "Monocytes"
},
{
"aid": 4,
"atext": "Platelets."
},
{
"aid": 5,
"atext": "Erythrocytes"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 76 |
If a statistical test offers a value p <0.05:
| 3 |
[
{
"aid": 1,
"atext": "The null hypothesis is accepted."
},
{
"aid": 2,
"atext": "The alternative hypothesis is rejected."
},
{
"aid": 3,
"atext": "the null hypothesis is rejected."
},
{
"aid": 4,
"atext": "The null hypothesis can not be rejected."
},
{
"aid": 5,
"atext": "There is no evidence in favor of the alternative hypothesis."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 77 |
A confidence interval to estimate the population mean will be more precise when:
| 1 |
[
{
"aid": 1,
"atext": "The lower the confidence level."
},
{
"aid": 2,
"atext": "The greater the dispersion of the sample."
},
{
"aid": 3,
"atext": "The smaller the sample size."
},
{
"aid": 4,
"atext": "The greater the typical sampling error."
},
{
"aid": 5,
"atext": "The higher the confidence level."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 79 |
If a sample of size 100 has a standard deviation of 10, its typical error is:
| 4 |
[
{
"aid": 1,
"atext": "10"
},
{
"aid": 2,
"atext": "100"
},
{
"aid": 3,
"atext": "0.1"
},
{
"aid": 4,
"atext": "one."
},
{
"aid": 5,
"atext": "There is not enough data to calculate it."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 80 |
How many degrees of freedom does a Student's t-test applied to two samples related to a total of 25 individuals?
| 2 |
[
{
"aid": 1,
"atext": "26"
},
{
"aid": 2,
"atext": "24"
},
{
"aid": 3,
"atext": "2. 3."
},
{
"aid": 4,
"atext": "48"
},
{
"aid": 5,
"atext": "47"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 81 |
The most common ectopic pregnancy occurs in:
| 1 |
[
{
"aid": 1,
"atext": "The fallopian tube."
},
{
"aid": 2,
"atext": "The oviductal tube."
},
{
"aid": 3,
"atext": "The cervix"
},
{
"aid": 4,
"atext": "The ovary"
},
{
"aid": 5,
"atext": "The abdomen."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 82 |
The blastocyst is detached from the zona pellucida in:
| 4 |
[
{
"aid": 1,
"atext": "The ovary"
},
{
"aid": 2,
"atext": "The fallopian tube."
},
{
"aid": 3,
"atext": "Oviductal tube."
},
{
"aid": 4,
"atext": "The uterus."
},
{
"aid": 5,
"atext": "The vagina"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 83 |
The term that includes the changes of the endometrium during pregnancy is:
| 5 |
[
{
"aid": 1,
"atext": "Hatching."
},
{
"aid": 2,
"atext": "Apposition."
},
{
"aid": 3,
"atext": "Accession."
},
{
"aid": 4,
"atext": "Invasion."
},
{
"aid": 5,
"atext": "Decidualization."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 84 |
After gastrulation, the epiblast is transformed into:
| 3 |
[
{
"aid": 1,
"atext": "Endoderm"
},
{
"aid": 2,
"atext": "Mesoderm"
},
{
"aid": 3,
"atext": "Ectoderm"
},
{
"aid": 4,
"atext": "Celoma"
},
{
"aid": 5,
"atext": "Chorionic villi."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 85 |
In the formation of the skin they intervene:
| 2 |
[
{
"aid": 1,
"atext": "Only the ectoderm."
},
{
"aid": 2,
"atext": "The ectoderm, mesoderm and cells of the neural crest."
},
{
"aid": 3,
"atext": "The ectoderm and mesoderm."
},
{
"aid": 4,
"atext": "The ectoderm and cells of the neural crest."
},
{
"aid": 5,
"atext": "Only the mesoderm."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 86 |
In the human genome, the coding sequences are called:
| 1 |
[
{
"aid": 1,
"atext": "Exons"
},
{
"aid": 2,
"atext": "Promoters"
},
{
"aid": 3,
"atext": "Intensifiers"
},
{
"aid": 4,
"atext": "Introns"
},
{
"aid": 5,
"atext": "Adapters"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 87 |
The amount of DNA in a genome is called value:
| 4 |
[
{
"aid": 1,
"atext": "TO."
},
{
"aid": 2,
"atext": "D."
},
{
"aid": 3,
"atext": "An."
},
{
"aid": 4,
"atext": "C."
},
{
"aid": 5,
"atext": "Cn."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 88 |
The most frequent mechanism that induces the activation of the ABL protooncogene in chronic myeloid leukemia is:
| 5 |
[
{
"aid": 1,
"atext": "Point mutation"
},
{
"aid": 2,
"atext": "Gene amplification."
},
{
"aid": 3,
"atext": "Methylation of the promoter."
},
{
"aid": 4,
"atext": "Deletion"
},
{
"aid": 5,
"atext": "Translocation"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 89 |
It has a recessive inheritance linked to the X chromosome the:
| 2 |
[
{
"aid": 1,
"atext": "Acatalasemia"
},
{
"aid": 2,
"atext": "Hemophilia A."
},
{
"aid": 3,
"atext": "Rett syndrome."
},
{
"aid": 4,
"atext": "Cystic fibrosis,"
},
{
"aid": 5,
"atext": "Hypophosphatemia"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 90 |
In eukaryotes, the RNA polymerase that transcribes small ribosomal RNAs is:
| 4 |
[
{
"aid": 1,
"atext": "II."
},
{
"aid": 2,
"atext": "I."
},
{
"aid": 3,
"atext": "IV."
},
{
"aid": 4,
"atext": "III."
},
{
"aid": 5,
"atext": "V."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 91 |
To silence messenger RNA (mRNA) siRNAs and miRNAs are usually linked to your:
| 4 |
[
{
"aid": 1,
"atext": "TATA box."
},
{
"aid": 2,
"atext": "5'-UTR."
},
{
"aid": 3,
"atext": "5 'cap."
},
{
"aid": 4,
"atext": "3'-UTR."
},
{
"aid": 5,
"atext": "Poly (A) 3 tail."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 92 |
Generates blunt DNA fragments the restriction enzyme:
| 2 |
[
{
"aid": 1,
"atext": "Bam HI."
},
{
"aid": 2,
"atext": "Hae III."
},
{
"aid": 3,
"atext": "Hind III."
},
{
"aid": 4,
"atext": "Eco RI."
},
{
"aid": 5,
"atext": "Eco RII."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 93 |
In eukaryotes, group II introns are in genes:
| 4 |
[
{
"aid": 1,
"atext": "Of rRNA."
},
{
"aid": 2,
"atext": "From tRNA."
},
{
"aid": 3,
"atext": "They encode proteins in the nucleus."
},
{
"aid": 4,
"atext": "They encode proteins in mitochondria."
},
{
"aid": 5,
"atext": "None is correct."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 94 |
In eukaryotes, RNA polymerase I transcribes:
| 5 |
[
{
"aid": 1,
"atext": "Small rRNA"
},
{
"aid": 2,
"atext": "Pre-mRNA."
},
{
"aid": 3,
"atext": "ARNsno."
},
{
"aid": 4,
"atext": "ARNt."
},
{
"aid": 5,
"atext": "Large rRNA."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 95 |
What enzyme does a retrovirus use to synthesize DNA copy of its genome?
| 5 |
[
{
"aid": 1,
"atext": "DNA polymerase I."
},
{
"aid": 2,
"atext": "cDNA polymerase I."
},
{
"aid": 3,
"atext": "RNA polymerase I."
},
{
"aid": 4,
"atext": "cDNA polymerase II."
},
{
"aid": 5,
"atext": "Reverse transcriptase"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 96 |
How many palindromic sequences exist on the human Y chromosome that allow Y-Y recombination ?:
| 1 |
[
{
"aid": 1,
"atext": "8"
},
{
"aid": 2,
"atext": "6"
},
{
"aid": 3,
"atext": "Four."
},
{
"aid": 4,
"atext": "10"
},
{
"aid": 5,
"atext": "12"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 97 |
It is an oncogen:
| 4 |
[
{
"aid": 1,
"atext": "NF1"
},
{
"aid": 2,
"atext": "P53"
},
{
"aid": 3,
"atext": "RB"
},
{
"aid": 4,
"atext": "cMYC."
},
{
"aid": 5,
"atext": "WT1."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 98 |
It is a stop codon for translation:
| 3 |
[
{
"aid": 1,
"atext": "AUG."
},
{
"aid": 2,
"atext": "UAU"
},
{
"aid": 3,
"atext": "UGA"
},
{
"aid": 4,
"atext": "UAC."
},
{
"aid": 5,
"atext": "UGU"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 99 |
In the replication of eukaryotic DNA the functions that correspond to the gamma (γ) DNA polymerase are:
| 2 |
[
{
"aid": 1,
"atext": "Translational synthesis of nuclear DNA."
},
{
"aid": 2,
"atext": "Replication and repair of mitochondrial DNA."
},
{
"aid": 3,
"atext": "Initiation of nuclear DNA synthesis."
},
{
"aid": 4,
"atext": "Repair of nuclear DNA."
},
{
"aid": 5,
"atext": "Synthesis of the leading and delayed nuclear DNA chain."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 100 |
If the guanine percentage of a double-stranded DNA molecule is 30%, that of adenine is:
| 4 |
[
{
"aid": 1,
"atext": "10%"
},
{
"aid": 2,
"atext": "70%"
},
{
"aid": 3,
"atext": "80%"
},
{
"aid": 4,
"atext": "twenty%."
},
{
"aid": 5,
"atext": "30%"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 101 |
Among the 5 types of histones of chromatin, the one with the lowest molecular weight is:
| 4 |
[
{
"aid": 1,
"atext": "H2A."
},
{
"aid": 2,
"atext": "H2B."
},
{
"aid": 3,
"atext": "H1"
},
{
"aid": 4,
"atext": "H4"
},
{
"aid": 5,
"atext": "H3"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 102 |
The three-dimensional structure of B-DNA:
| 3 |
[
{
"aid": 1,
"atext": "It is shorter and wider than the A-DNA."
},
{
"aid": 2,
"atext": "It has around 20pb for each 360º turn of the propeller."
},
{
"aid": 3,
"atext": "It is the most stable structure under physiological conditions."
},
{
"aid": 4,
"atext": "It appears when the DNA is placed in a saline solution."
},
{
"aid": 5,
"atext": "It is a left-handed helix."
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 103 |
Williams-Beuren syndrome is characterized by a microdeletion of the long arm of the chromosome:
| 5 |
[
{
"aid": 1,
"atext": "Four."
},
{
"aid": 2,
"atext": "22"
},
{
"aid": 3,
"atext": "fifteen."
},
{
"aid": 4,
"atext": "17"
},
{
"aid": 5,
"atext": "7"
}
] |
Cuaderno_2013_1_B
|
2013
|
biology
| 104 |
The genetic phenomenon that explains that the expression of a gene is influenced by the sex of the parent is:
| 4 |
[
{
"aid": 1,
"atext": "Character limited by sex."
},
{
"aid": 2,
"atext": "Characteristic linked to sex."
},
{
"aid": 3,
"atext": "Cytoplasmic inheritance."
},
{
"aid": 4,
"atext": "Genomic imprint"
},
{
"aid": 5,
"atext": "Maternal genetic effect."
}
] |
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