Biology - Comprehensive Mock Test 20

Question 191 Medium

Which of the following nerves is the largest of all the cranial nerves?

A) Abducens nerve B) Oculomotor nerve C) Olfactory nerve D) Trigeminal nerve

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Question 192 Medium

Which of the following options is appropriate for the processing center Wernicke’s area found in left cerebral cortex?

A) Helps us to understand both written and spoken word B) Adds grammatical refinements C) Sends information to Broca’s area D) Both A and C

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Question 193 Medium

Which of the following is not related to the autonomic nervous system?

A) Peristalsis B) Digestion C) Excretion D) Memory and learning

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Question 194 Hard

Which one of the followings is responsible for the improvement of nutrient flow to the neurons and provides electrical insulation?

A) Neuroglia B) Motor neuron C) Sensory neuron D) Interneuron

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Question 195 Medium

Which of the following does not act as a neurotransmitter?

A) Acetylcholine B) Glutamic acid C) Epinephrine D) Tyrosine

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Question 196 Hard

During synaptic transmission of nerve impulse, neurotransmitter (P) is released from synaptic vesicles by the action of ions (Q). Choose the correct P and Q ?

A) P = Acetylcholine, Q = Ca++ B) P = Acetylcholine, Q = Na+ C) P = GABA, Q=Na+ D) P = Cholinesterase, Q = Ca++

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Question 197 Medium

Which neuroglia cells produce a fatty insulating material called myelin?

A) Satellite cells B) Schwann cells C) Both A and B D) Neither A nor B

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Question 198 Medium

Which one of the followings is the largest portion of the brain in humans?

A) Cerebrum B) Cerebellum C) Medulla D) Pons

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Question 199 Medium

Select the correct statement from the ones given below ?

A) Cocaine is given to patients after surgery as it stimulates recovery B) Barbiturates when given to criminals make them tell the truth C) Morphine is often given to persons who have undergone surgery as a pain killer D) Chewing tobacco lowers blood pressure and heart rate

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Question 200 Medium

When sympathetic nervous system is activated it causes the secretion of ?

A) Adrenaline which inhibits the organ B) Acetylcholine which stimulates the organ C) Adrenaline which stimulates the organ D) Acetylcholine which inhibits the organ

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