CBSE Class 11 Biology Neural Control and Coordination MCQs Set 01

Biology Objective Questions and Answers: Chapter 18 Neural Control and Coordination

Access targeted multiple-choice questions for Chapter 18 Neural Control and Coordination designed to align with the latest CBSE academic syllabus for Class 11 Biology. These objective practice sets help students evaluate their conceptual understanding and improve exam readiness.

Download Chapter 18 Neural Control and Coordination MCQs with Answers

Access the complete set of multiple-choice questions for Chapter 18 Neural Control and Coordination below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official CBSE textbooks.

Question : Rods and cones of eyes are modified

a) bipolar neuron

b) multipolar neuron

c) unipolar neuron

d) None of these

Answer : A

 

Question : The nerve transmitter, produced at the synapse and neuromuscular junction, is

a) acetylcholine

b) GTP

c) ATP

d) phosphokinase

Answer : A

 

Question :  Alzheimer disease in humans is associated with the deficiency of

a) acetylcholine

b) glutamic acid

c) dopamine

d) None of these

Answer : A

 

Question : The black pigment in the eye which reduces the internal reflection is located in

a) retina

b) cornea

c) iris

d) sclerotic

Answer : A

 

Question :  Which one of the following does not act as a neurotransmitter ?

a) Cortisone

b) Epinephrine

c) Acetylcholine

d) Norepinephrine

Answer : A

 

Question : The cochlea of ear contains

a) perilymph and endolymph

b) only endolymph

c) aqueous humour

d) perilymph

Answer : A

 

Question : Eustachian tube connects

a) Middle ear with pharynx

b) Internal pharyax

c) External ear with internal ear

d) External ear with middle ear

Answer : A

 

Question : Mark the incorrect statement

a) Opsin (of Rhodopsin) develops from vitamin A

b) The pressure on ear drum is equalized by eustachian tube

c) Otolith organ consists of saccule and utricle

d) None of these

Answer : A

 

Question : Frequency of sound is discriminated by

a) The site at the cochlear coi

b) All of these

c) The type of fluid - perilymph or endolymph

d) The intensity of movement of basilar fibres of cochlea

Answer : A

 

Question : Saltatory conduction of nerve impulse takes place through

a) Myelinated fibre

b) Non-myelinated fibre

c) Grey fibres

d) None of these

Answer : A

 

Question : Among which one of the following groups of chemicals, all are neurotransmitters?

a) Acetylcholine, noradrenaline, dopamine

b) Noradrenaline, somatostatin, threonine

c) Somatostatin, serotonin, acetylcholine

d) Glycine, dopamine, melatonin

Answer : A

 

Question : The enzyme required for the conduction of nerve impulse across synapse is

a) choline acetylase

b) succinic dehydrogenase

c) peroxidase

d) ascorbic acid oxidase

Answer : A

 

Question : The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eye, is a derivative of

a) Vitamin A

b) Vitamin B1

c) Vitamin D

d) Vitamin C

Answer : A

 

Question : During stress condition which of the following nerves start working?

a) Sympathetic nerves

b) Parasympathetic nerves

c) Autonomic nerves

d) Cranial nerves

Answer : A

 

Question : The gelatinous membrane covering the sensorys hair cells of the ear is known as

a) tectorial membrane

b) Reissner's membrane

c) basilar membrane

d) neuro-sensory membrane

Answer : A

 

Question : Nerve cells do not divide because they do not have

a) centrosome

b) mitochondria

c) nucleus

d) Golgi body

Answer : A

 

Question : The local depolarization of a receptor-cell membrane is called as

a) action potential.

b) resting potential

c) threshold potential

d) None of these

Answer : A

 

Question : You are sitting in biology class daydreaming. Yourintrinsic heartbeat is controlled by

a) levels of adrenaline in the blood.

b) the medulla

c) the cerebrum

d) the spinal cord

Answer : A

 

Question : The threshold of a neuron is

a) The membrane voltage at which the membrane potential develops into an action potential

b) the amount of excitatory neurotransmitter required to elicit an action potential

c) The membrane voltage at which an axon potential will be suppressed

d) The amount of inhibitory neurotransmitter required to inhibit an action potential.

Answer : A

 

Question : Arbor vitae is composed of

a) White matter

b) Neuroglea cells

c) Grey matter

d) All of these

Answer : A

 
Question : Which of the following cranial nerves can regulate heart beat?  
a) X b) IX 
c) VIII d) VII

Answer :  A 

Question : Sensitive pigmented layer of eye is 
a) cornea b) retina 
c) sclerotic d) iris

Answer : B

Question : Third ventricle of brain is also known as 
a) metacoel b) rhinocoel  
c) paracoel d) diacoel

Answer : D 

Question : One function of parasympathetic nervous system is 
a) contraction of hair muscles 
b) stimulation of sweat glands 
c) acceleration of heart beat
d) constriction of pupil

Answer :  D

 
Question : Ecdysis is shedding of  
a) stratum corneum 
b) epidermis
c) dermis 
d) stratum Malpighi 

Answer : A

 

Question : Vagus nerve is  
a) X b) IX 
c) VII d) V

Answer : A

 

Question : Afferent nerve fibres carry impulses from 
a) effector organs to CNS  
b) receptors to CNS 
c) CNS to receptors 
d) CNS to muscles

Answer :  B

 
Question : Iris is part of  
a) sclerotic 
b) choroid/uvula 
c) choroid and retina 
d) sclerotic and choroid 

Answer : C

 

Question : Retina is most sensitive at  
a) optic disc b) periphery 
c) macula lutea d) fovea centralis

Answer : D

  

Question : Light rays entering the eye are controlled by 
a) pupil b) iris  
c) comea d) lens

Answer : A

 

Question : Ivan Pavlov performed experiments on 
a) simple reflexes b) conditioned reflexes 
c) cardiac reflexesd) origin of life

Answer : B

 

Question : Function of iris is to  

a) move lens forward and backward 
b) refract light rays 
c) bring about movements of eye lids 
d) alter the size of pupil

Answer :  D

 
Question : CNS is mostly made of  
a) motor neurons and sensory neurons
b) sensory neurons and association neurons 
c) association neurons 
d) motor neurons and association neurons

Answer :  C

 
Question : The layer of actively dividing cells of skin is termed as  
a) stratum compactum 
b) stratum corneum 
c) stratum Malpighi/stratum germinativum 
d) stratum lucidum

Answer : C 

 
Question : Hair present in the skin are  
a) epidermal in origin and made of dead cells 
b) epidermal in origin and made of living cells 
c) dermal in origin and made of living cells 
d) dermal in origin and made of dead cells

Answer : A 

 
Question : Respiratory centre is situated in  
a) cerebellum b) medulla oblongata 
c) hypothalamus d) cerebrum

Answer :  B

 
Question : The sympathetic nerves, in mammals arise from  
a) sacral nerves 
b) cervical nerves 
c) thoraco-lumbar nerves 
d) III, VII, IX and X cranial nerves

Answer : C 

 

Question : In humans, visceral organs are innervated by  
a) sympathetic nerves and are under conscious control 
b) parasympathetic nerves and are under  conscious control 
c) Both a) and b) 
d) both sympathetic and parasympathetic nerves but are not under conscious control

Answer :  C

 

Question : Cornea transplantation is outstandingly successful because  
a) cornea is easy to preserve 
b) cornea is not linked up with blood vascular and immune systems 
c) the technique involved is very simple 
d) cornea is easily available

Answer : B

 

Question : In the chemistry of vision in mammals, the photosensitive substance is called  
a) sclerotin b) retinal 
c) rhodopsin d) melanin

Answer : C 

 

Question : In frog, “fenestra ovalis” is  
a) the opening in the auditory capsule which separates the middle ear from internal ear 
b) the air-filled cavity of the middle ear 
c) the communication between the pharynx and the tympanic cavity 
d) the external opening of the tympanic cavity which is covered by the tympanic membrane

Answer : A

 

Question : Sympathetic nervous system induces  
a) heart beat 
b) secretion of digestive juices 
c) secretion of saliva 
d) All of the above

Answer : A

 

Question : Which cranial nerve has the highest number of branches?  
a) Facial nerve b) Trigeminal 
c) Vagus nerve d) None of these

Answer : C

 
Question : Which of the following is regarded as a unit of nervous tissue ?  
a) Myelin sheath b) Axons 
c) Dendrites d) Neurons

Answer : D

 

Question :  The junction between the axon of one neuron and the dendrite of the next is called 
a) junction point b) a synapse  
c) a joint d) constant bridge

Answer : B

 

Question : Which one of the following is correctly matched pair of the given secretion and its primary role in human physiology ?  
a) Sebum — Sexual attraction 
b) Sweat — Thermoregulation 
c) Saliva — Tasting food 
d) Tears — Excretion of salts

Answer : B

 

Question : What is the intensity of sound in normal conversation? 
a) 10-20 dB 
b) 35-60 dB 
c) 70-90 dB 
d) 120-150 dB

Answer : B

 

Question : Characteristic feature of human cornea is that  
a) it is secreted by conjunctiva and glandular tissue 
b) it is lacrimal gland which secretes tears 
c) blood circulation is absent in cornea 
d) in old age it become hard and white layer deposits on it which causes the cataract

Answer : C

 

Question : When we migrate from dark to light, we fail to see for some time but after a time visibility becomes normal. It is an example of  
a) accommodation 
b) adaptation 
c) mutation 
d) photoperiodism

Answer : B

 

Question : Injury to vagus nerve in human is not likely to affect  
a) tongue movements 
b) gastrointestinal movements 
c) pancreatic secretion 
d) cardiac movements

Answer : A

 

Question : Parkinson’s disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter  
a) acetylcholine 
b) norepinephrine 
c) dopamine 
d) GABA

Answer : C

 

Question : In a man, abducens nerve is injured. Which one of the following functions will be affected? 
a) Movement of the eye ball 
b) Swallowing 
c) Movement of the tongue 
d) Movement of the neck

Answer : A

 

Question : One of the examples of the action of the autonomous nervous system is  
a) knee-jerk response 
b) pupillary reflex 
c) swallowing of food 
d) peristalsis of the intestine

Answer : D

 

Question : Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following. Which of the cells are least likely to be replaced by new cells ?  
a) Osteocytes 
b) Malpighian layer of the skin 
c) Liver cells 
d) Neurons

Answer : D

 

Question : Which one of the following statements is correct ?  
a) Neurons regulate endocrine activity, but not vice versa 
b) Endocrine glands regulate neural activity and nervous system regulates endocrine glands 
c) Neither hormones control neural activity nor the neurons control endocrine activity 
d) Endocrine glands regulate neural activity, but not vice versa

Answer : A

 

Question : Bowman’s glands are found in  
a) olfactory epithelium 
b) external auditory canal 
c) cortical nephrons only 
d) juxtamedullary nephrons

Answer : A

 

Question : Which one of the following not act as a neurotransmitter ?  
a) Acetylcholine 
b) Epinephrine 
c) Norepinephrine 
d) Cortisone

Answer : D

 

Question : Bowman’s glands are located in the  
a) proximal end of uriniferous tubules 
b) anterior pituitary 
c) female reproductive system of cockroach 
d) olfactory epithelium of our nose

Answer :  D

 

Question : Cornea transplant in human is almost never rejected. This is because  
a) its cells are least penetrable by bacteria 
b) it has no blood supply 
c) it is composed of enucleated cells 
d) it is a non-living layer

Answer : B 

 
Question : Which part of human brain is concerned with the regulation of body temperature? 
a) Cerebrum 
b) Hypothalamus 
c) Medulla Oblongata 
d) Cerebellum

Answer : B

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