MCQs For NCERT Class 11 Biology Chapter 21 Neural Control and Coordination

Please refer to the MCQ Questions for Class 11 Biology Chapter 21 Neural Control and Coordination with Answers. The following Neural Control and Coordination Class 11 Biology MCQ Questions have been designed based on the latest syllabus and examination pattern for Class 11. Our experts have designed MCQ Questions for Class 11 Biology with Answers for all chapters in your NCERT Class 11 Biology book.

Neural Control and Coordination Class 11 MCQ Questions with Answers

See below Neural Control and Coordination Class 11 Biology MCQ Questions, solve the questions and compare your answers with the solutions provided below.

Question. Iris is part of
(a) sclerotic
(b) choroid
(c) choroid and retina
(d) sclerotic and choroid. 

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

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

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

Question. Light rays entering the eye is controlled by
(a) pupil
(b) iris
(c) cornea
(d) lens.

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. 

Question. A bipolar neuron has
(a) 2 dendrites and 1 axon
(b) 2 axons and 1 dendrite
(c) 1 dendrite and 1 axon
(d) 2 axons and 2 dendrites

Question. Sodium – Postassium pump across membrane, actively transports
(a) 2 Na ions outwards and 3 K ions into the cell.
(b) 3 Na ions outwards and 2 K ions into the cell.
(c) 2 K ions outwards and 3 Na ions into the cell.
(d) 3 K ions outwards and 2 Na ions into the cell.

Question. The nerves carrying impulses to CNS are known as
(a) motor
(b) efferent
(c) afferent
(d) mixed

Question. The controlling centre of autonomic nervous system is
(a) hypothalamus
(b) spinal cord
(c) cerebellum
(d) pons

Question. During conduction of nerve impulse
(a) Na⁺ moves into axoplasm
(b) Na⁺ moves out of axoplasm
(c) K⁺ moves into axoplasm
(d) Ca⁺⁺ moves into axoplasm

Question. During recovery, a nerve fibre becomes
(a) positively charged outside and negatively charged inside.
(b) positively charged on both-outside and inside.
(c) negatively charged outside and positively charged inside.
(d) negatively charged on both-outside and inside

Question. Which of the following ions are required for nerve conduction ?
(a) Ca⁺⁺, Na+ and K+
(b) Ca⁺⁺ and Mg⁺⁺
(c) Mg⁺⁺ and K⁺
(d) Na⁺ and K⁺

Question. During rest, sodium pump of a nerve results in
(a) more Na⁺ pumped out than K⁺ ions taken in.
(b) Na+ pumped in without exchange with any other ion.
(c) exchanging equal amounts of Na⁺ and K⁺.
(d) more Na⁺ being pumped in than K⁺ ions pumped out.

Question. A typical value of resting membrane potential is
(a) – 40m V
(b) – 60m V
(c) – 70m V
(d) – 80m V

Question. In the axons, the nerve impulse travels.
(a) towards the cell body.
(b) away from the cell body.
(c) away from synapse.
(d) in both direction.

Question. Action potential of nerve cell is
(a) – 60 mV
(b) –80 mV
(c) +20 mV
(d) +30 mV

Question. The transmission of impulse through neurons is a
(a) physical phenomenon
(b) chemical phenomenon
(c) electro-chemical phenomenon
(d) gravitational phenomenon

Question. The resting potential occurs because
(a) of reduced energy production by mitochondria.
(b) the action potential depletes transmitter substance.
(c) of the different concentrations of ions across the cell.
(d) the action potential causes axoplasmic transport back towards the cell body.

Question. The cerebral cortex is
(a) the outer layer of cerebrum, called white matter.
(b) inner layer of cerebrum, called white matter.
(c) the outer layer of cerebrum, called grey matter.
(d) inner layer of cerebrum, called grey matter

Question. The secretion of gastric juice is controlled by
(a) cerebellum
(b) ANS
(c) cerebrum
(d) medulla

Question. Centre for sense of smell is
(a) cerebellum
(b) olfactory lobes
(c) pons
(d) midbrain

Question. The resting potential occurs because
(a) of reduced energy production by mitochondria.
(b) the action potential depletes transmitter substance.
(c) of the different concentrations of ions across the cell.
(d) the action potential causes axoplasmic transport back towards the cell body.

Question. The cerebral cortex is
(a) the outer layer of cerebrum, called white matter.
(b) inner layer of cerebrum, called white matter.
(c) the outer layer of cerebrum, called grey matter.
(d) inner layer of cerebrum, called grey matter

Question. Purkinje cells are found in
(a) cerebellar cortex
(b) mammalian heart
(c) voluntary cells
(d) semicircular canal

Question. Pons connects
(a) brain with spinal cord
(b) cerebrum with cerebellum
(c) two-lobes of cerebellum
(d) two cerebral hemispheres

Question. Part of brain responsible for hearing is
(a) cerebellum
(b) cerebrum
(c) medulla
(d) hypothalamus

Question. Corpus callosum connects
(a) two cerebral hemispheres
(b) two ventricles of brain
(c) two cerebellar hemispheres
(d) two optic thalamus

Question. Which of the following cell in the central nervous system functionally equivalent to a Schwann cell?
(a) astrocyte
(b) neuron
(c) oligodendrocyte
(d) microglial cell

Question. Clusters of neuron cell bodies embedded in the white matter of the brain are referred to as
(a) nuclei
(b) gyri
(c) sulci
(d) ganglia

Question. Part of mammalian brain controlling muscular coordination is
(a) cerebrum
(b) corpus callosum
(c) medulla oblongata
(d) cerebellum

Question. Pons varolii in human brain lies
(a) anterior to optic chiasma
(b) posterior to medulla oblongata
(c) ventral to cerebellum
(d) dorsal to diencephalon

Question. Which of the following is a thin middle layer of cranial meninges?
(a) Duramater
(b) Arachnoid
(c) Piamater
(d) Optic nerve

Question. Which of the following group of functions was regulated by part of hindbrain?
(a) Sexual behaviour, body temperature, drinking.
(b) Gastric secretion, cardiovascular reflexes, respiration.
(c) Memory and communication, cardiovascular reflexes, respiration.
(d) Gastric secretion, body temperature, Memory and communication.

Question. Which is not a reflex action?
(a) Swallowing of food
(b) Shivering in cold
(c) Salivation at choicest food
(d) Closure of eyelid by flashing light

Question. Twilight vision is also called
(a) scotopic vision and is the function of rods.
(b) scotopic vision and is the function of cones.
(c) photopic vision and is the function of rods.
(d) photopic vision and is the function of cones.

Question. The thinned-out portion of retina where only cones are densely packed is called
(a) blind spot
(b) corpus luteum
(c) macula lutea
(d) fovea

Question. For seeing the nearby objects, the lens becomes more convex by
(a) relaxation of iris muscles.
(b) contraction of iris muscles.
(c) contraction of ciliary muscles.
(d) relaxation of ciliary muscles.

Question. Space between cornea and lens is called
(a) aqueous chamber
(b) vitreous chamber
(c) canal of schlemm
(d) fovea centralis

Question. The region of vertebrate’s eye where the optic nerve passes out of the retina is called
(a) yellow spot
(b) optic chiasma
(c) fovea
(d) blind spot

Question. The amount of light that falls on retina is regulated by
(a) lens
(b) cornea
(c) iris
(d) ciliary muscles

Question. In human eye, the blind spot contains
(a) rods
(b) cones
(c) both rods and cones
(d) neither rods nor cones

Question. Which of the following is devoid of blood supply?
(a) Retina
(b) Choroid
(c) Cornea
(d) Scleroid

Question. Eye ball is moved in the orbit by
(a) four rectus and two oblique muscles
(b) ciliary muscles
(c) suspensory ligaments
(d) two rectus and four oblique muscles

Question. The blind spot is the region where
(a) image is formed.
(b) cones are numerous.
(c) the optic nerve leaves out.
(d) image is formed during the dark.

Question. The cochlea of ear contains
(a) perilymph
(b) aqueous humour
(c) perilymph and endolymph
(d) only endolymph

Question. At the base of cochlea, the canal that ends at the oval window is
(a) scala tympani
(b) scala media
(c) scala vestibuli
(d) auditory

Question. The stereocilia of hair cells of organ of Corti are covered with a thick elastic membrane called
(a) Reissner’s membrane
(b) basilar membrane
(c) tympanic membrane
(d) tectorial membrane

Question. Which part of the human eye adjust the focal length of lens ?
(a) Aqueous humour
(b) Ciliary body
(c) Conjunctiva
(d) Cornea

Question. Colour perception in man is due to the presence of
(a) rhodopsin pigment in rod cells.
(b) iodopsin pigment in cone cells.
(c) iodopsin pigment in rod cells.
(d) rhodopsin pigment in cone cells