ZoologyZoology QuestionsNeural Control And Coordination Questions for CBSE Class 11th

Neural Control And Coordination Questions for CBSE Class 11th

Which of the following cranial nerve controls the movement of tongue?

A diagram showing axon terminal and synapse is given. Identify correctly at least two of A – D.

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    Which one of the following statements is not correct?

    Match the following columns and select the correct option : Column I Column II (a) Pneumotaxic (i) Alveoli centre (b) O 2 Dissociation curve (ii) Pons region of brain (c) Carbonic anhydrase (iii) Haemoglobin (d) Primary site of gas exchange (iv) RBC

    Select the wrong match.

    Visual acuity is the greatest in the human eye at the

    Mark the incorrect statement with regard to knee jerk reflex.

    Which of the following life processes are affected when medulla is injured? a. Digestion b. Respiration c. Circulation

    The somatic neural system is a sub-division of

    Fovea centralis

    Match the following and choose the correct option. Column A Column B (a) Cochlea (i) Bipolar cells (b) Olfactory epithelium (ii) Tectorial membrane (c) Brain (iii) Corpus callosum (iv) White matter (v) Hair cells A B C 1 ii, v i, iv iii 2 i v, ii iii, iv 3 ii i, iv iii 4 ii, v i iii, iv

    All the following structures are found in an electrical synapse except

    How many of the following statement(s) is/are correct? A. Dura mater is the innermost thick meninge. B. The medulla is an important center for both respiration and circulation. C. Cyton possesses Nissl’s granules but these are absent in dendrites. D. Impulse through chemical synapse is faster than electrical synapse

    The part of the brain responsible for the urge for drinking and eating is

    Read the following characteristics. (a) These are granular bodies (b) Found in cell body and dendrites (c) Formed by RER and free ribosomes (d) Help in protein synthesis In a neuron, the above characteristics are related to

    Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions/characteristics.

    The most abundant intracellular cation is

    A gymnast is able to balance his body upside down even in the total darkness because of

    Destruction of the anterior horn cells of the spinal cord would result in loss of

    Which of the following regions of the brain is incorrectly paired with its function?

    In mammalian eye, the ‘fovea’ is the center of the visual field, where

    Nissl’s bodies are mainly composed of

    Match the items given in Column I with those in Column II and select the correct option given below : Column I Column II a. Reissner’s membrane i. Between middle ear and inner ear b. Basilar membrane ii. Between scala vestibuli and scala media c. Tympanic membrane iii. Between scala tympani and scala media d. Oval window iv. Between external auditory meatus and middle ear

    Which of the following receptors are specifically responsible for maintenance of balance of body and posture?

    Myelinated axons transmit action potentials faster than unmyelinated axons. Select the best option from the following statements. (a) Saltatory conduction occurs in myelinated axons. (b) Myelin has whitish appearance. (c) Schwann cells are associated only with myelinated fibres. (d) Voltage-gated sodium channels are absent at nodes of Ranvier.

    The Pacinian corpuscle responds to rapid changes in :

    Which of the following has a very convoluted surface in order to provide additional space for many neurons?

    The external layer of the wall of the eyeball is the fibrous tunic composed of

    The centres which control respiration, cardiovascular reflexes and gastric secretions are located in the

    Which of the following is not a function of the brainstem?

    The middle bluish layer in the wall of the eyeball that contains many blood vessels is

    A simple neural organisation, with a network of neurons, is found in

    Each of the following is an integral part of neuron except

    In a neuron, Nissl’s granules are found in the

    The upper channel of the cochlea is

    A multipolar neuron has

    Which of the following is not a part of cochlea?

    Which of the following is filled with endolymph?

    When a neuron is not conducting any impulse, i.e., resting, the axonal membrane is

    Sodium-potassium pump transports

    The diameter of the pupil is regulated by the

    An example of autonomous nervous system is

    Which one of the following is an example of a simple reflex?

    During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?

    Cornea transplantation is successful as cornea is

    Which of these is an example of conditioned reflex?

    In a similarity with photographic camera the retina acts as

    Layers in wall of eye balls from inside outwards are

    The neuron receives signal from a sensory organ and transmits the impulse via a dorsal nerve root into the . The neuron then carries signals from CNS to the .

    Unmyelinated nerve fibre is enclosed by an ‘X’ that does not form a myelin sheath around the ‘Y’, and is commonly found in ‘Z’ and the somatic neural systems. Identify ‘X’, ‘Y’ and ‘Z’. X Y Z 1. Schwann cells Axon Autonomous 2. Nodes of Ranvier Cell body Synaptic knob 3. Synapse Dendrites Sympathetic 4. Meninges Nerve impulse Peripheral

    The white matter of the central nervous system is mainly composed of

    Which of the following ions play an important role in the action potential? a. Na + b. K + c. Cl – d. H +

    The membrane that separates scala media and scala tympani is

    Synaptic vesicles are located in the

    The auditory receptors are located in the

    Amygdala is a part of

    Which of the following has the most simple nervous system?

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

    Which of the following pair is related to midbrain of human?

    The nerve impulses are transmitted by the optic nerves to the area of the brain.

    Column I list the parts of the human brain and column II lists the functions. Match the two columns and identify the CORRECT choice from those given. Column – I Column – II A Cerebrum i. Controls the pituitary B Cerebellum ii. Vision and hearing reflexes C Hypothalamus iii Controls the rate of heartbeat D Midbrain iv. Seat of intelligence v. Maintains body posture A B C D 1 v iv ii i 2 iv v ii i 3 v iv i ii 4 iv v i ii

    Identify the mismatched combination from the following. Column-I Column-II Column-III 1 Multipolar neuron One axon and two or more dendrites Cerebral cortex 2 Bipolar neuron One axon and one dendrite Retina of eye 3 Unipolar neuron Cell body with axon only Embryonic stage 4 Unmyelinated neuron Schwann cells are not associated Autonomous nervous system

    The figure shows an axon terminal and synapse. Select the option giving correct identification of label s A-D.

    A sagittal section of human brain is shown here. Identify at least two labels from A-D.

    Injury localized to the hypothalamus would most likely disrupt

    Choose the correct statement.

    Photosensitive compound in human eye is made up of

    Choose the correct statement.

    Myelin sheath is produced by

    Receptor sites for neurotransmitters are present on

    Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements. (1) Vitamin A derivatives are formed from carotene. (2) The photopigments are embedded in the membrane discs of the inner segment. (3) Retinal is a derivative of vitamin A. (4) Retinal is a light-absorbing part of all the visual photopigments.

    Which of the following statements is correct?

    Which of the following structures or regions is incorrectly paired with its functions?

    Find the incorrectly matched pair from the following.

    The transparent lens in the human eye is held in its place by

    Match the items given in column I with those in column II and select the correct option. Column I Column II (a) Crista ampullaris (i) Middle ear (b) Ear ossicles (ii) Semicircular canal (c) Macula (iii) Endolymph (d) Scala media (iv) Saccule and utricle

    Myelin sheath around the axons within PNS is formed by

    Nissl’s granules are found in

    The most abundant extracellular cation is

    Which of the following best describes the events that occur during depolarisation phase of an action potential?

    Which of the following statements is not correct?

    The diameter of the pupil is regulated by

    In the human brain, thirst centre is located in the

    Which of the following ossicles is adhered to tympanic membrane of middle ear?

    The brain stem does not include

    Select the incorrectly matched pair from the following.

    The optic nerve is formed by the axons of

    Which part of the brain is responsible for thermoregulation?

    The cerebral aqueduct passes through the

    The layers in the wall of the eyeball (from outside to inside) are

    The vascular tunic of the eye is represented by all the following except the

    The Pons Varolii

    The lens is held in place by ligaments attached to the

    A simple neural organisation, with a network of neurons, is found in

    The choroid layer becomes thick in the anterior part to form the

    Which of the following relays impulses from the CNS to the skeletal muscles?

    The amount of light entering the vitreous chamber is regulated by the

    Which of the following is incorrect regarding dendrites?

    Identify the correct path of light rays striking retina.

    Blind spot is the region in the retina where

    Soon after a stimulus is applied at a site on the polarised axonal membrane, which of the following occurs?

    Select the incorrect statement about a chemical neuronal synapse.

    The thinned-out portion of the retina where only the cones are densely packed is

    Match the items given in column I with those in column II and select the correct option. Column I Column II (a) Amygdala (i) Cerebral cortex (b) Arbor vitae (ii) Cerebellum (c) Cerebral aqueduct (iii) Midbrain (d) Association areas (iv) Limbic system

    Earwax is produced in the

    Which of the following is the correct sequence of vibration structures in the ear?

    Select the correct statement regarding nerve fibres.

    The organ of Corti is situated on

    Match the items given in column I with those in column II and select the correct option. Column I Column II (a) Amygdala (i) Cerebral cortex (b) Arbor vitae (ii) Cerebellum (c) Cerebral aqueduct (iii) Midbrain (d) Association areas (iv) Limbic system

    The most abundant extracellular cation is

    Which of the following statements about electric synapses is not true?

    Which of the following animals have a better organised neural system with a brain along with a number of ganglia and neural tissues?

    The site of information processing and control is the

    Regulatory impulses are transmitted from the CNS to the effectors by the nerve fibres of

    Which of the following statements is not true about the visceral nervous system?

    Select the correct combination.

    Read the following statement having two blanks (A and B). The (A) fibres of the (B) neural system transmit impulses from the CNS to the smooth muscles. The one correct option for the two blanks is:

    Select the correct match.

    Select the correct combination regarding unipolar neurons.

    The sclera is composed of

    Select the correct options about photopigments from the following statements. (a) Rods are specialised for photopic vision and cones are specialised for scotopic vision. (b) The rods contain rhodopsin or visual purple. (c) In the human eye, there are three types of cones which respond optimally to red, green and blue lights. (d) A sensation of white light is produced when three types of cones are stimulated equally.

    The optic nerves exit the eyeball at the

    Neither rods nor cones are present at

    Read the following statement having two blanks (A and B). The optic nerves leave the eye and the retinal blood vessels enter it at a point (A) to and slightly (B) the posterior pole of the eyeball. The one correct option for the two blanks is:

    The hair cells of the organ of Corti are covered by the

    The organ of Corti is located in the

    Hair cells are present in

    At the base of cochlea, the canal that ends at the oval window is

    The stereocilia of hair cells of organ of Corti are covered with a thick elastic membrane called

    Bony labyrinth of ear contains a fluid known as

    Receptor cells for balance in human ear are located in

    The sense of equilibrium is determined by

    In mammals, the organs of Corti is found in

    Anvil-shaped bone is

    In which part of the mammalian ear, the nerve impulse for hearing starts?

    In mammalian cochlea, the thin-walled sloping roof of the scala media is referred to as

    Which of the following statement is correct ?

    Which of the following statement is correct regarding cerebellum of brain?

    Which of the following statement is incorrect ?

    Which of the following statement is an example of conditioned reflex?

    During the propagation of a nerve impulse, the action potential results from the movement of

    All are None law (principle) states that

    Which of the following statement is incorrect regarding the organ of sight-eye?

    Which of the following statements is correct regarding a myelinated nerve fibre? (i) Myelin sheath is always associated with an axon. (ii) It allows rapid conduction of nerve impulses. (iii) It allows slow conduction of nerve impulses. (iv) It has nodes of Ranvier.

    Which statement regarding ‘stapes’ is correct ?

    Which of the following events is involved in the transfer of information across a chemical synapse? (i) Neurotransmitters bind to the postsynaptic receptors. (ii) Calcium channels open in the presynaptic region. (iii) Ion channels open in the postsynaptic membrane. (iv) Direct flow of ions from one neuron to the next.

    Which of the following statement is correct ?

    Which of the following statements is correct ?

    Which of the following statements is correct about rods compared to cones? (i) Rods are most numerous in the fovea. (ii) Rods contain rhodopsin. (iii) Rods produce general outlines of objects rather than sharp images. (iv) Rods produce black and white but not colour images.

    Statement A : The chemical stored in the synaptic vesicles are termed as neurotransmitter. Statement B : Synaptic vesicles release these chemicals in synaptic cleft.

    Statement A : Astigmatism is due to uneven curvature of lens. Statement B : It is treated with cylindrical lenses.

    Statement A : The brain stem contains centres for controlling activities. Statement B : Brain stem is very sensitive.

    Statement A : The chemical stored in the synaptic vesicles are termed as neurotransmitters. Statement B : Synaptic vesicles release these chemicals in the synaptic cleft.

    Mark the correct match.

    Column I lists the parts of the human brain and column II lists the functions. Match the two columns and identify the correct option. Column-I Column-II A. Cerebrum I. Controls the pituitary B. Cerebellum II. Controls vision and hearing C. Hypothalamus III. Controls the rate of heart beat D. Medulla oblongata IV. Maintains body posture A B C D 1. II IV I III 2. II IV III I 3. IV II I III 4. II I IV III

    Which of the following pair is not correctly matched?

    Which of the following terms is not correctly matched with its feature?

    Identify the correct match of types of neurons with its location. (i) Unipolar neuron – Embryonic stage (ii) Bipolar neuron – Cornea of eyes (iii) Multipolar neuron – Cerebral cortex

    What is the function of label X in the given diagram?

    Identify the correct options for the given blanks. Parts of the ear Functions A Contains receptors for balance B Increases the magnitude of vibrations C Collects sound waves A B C 1. Semi-circular canals Ear ossicles Pinna 2. Cochlea Semi-circular canals Tympanum 3. Semi-circular canals Cochlea Tympanum 4. Cochlea Pinna Ear ossicles

    Which of the following options correctly represents the name of 1, 2, 3 and 4 is the given diagram of neuron?

    Match the items given in column I with those in column II and select the correct option. Column I Column II (a) Cerebellum (i) Major coordinating centre for sensory and motor signalling (b) Thalamus (ii) Thermostat of the body (c) Hypothalamus (iii) ‘Emotional brain’ (d) Limbic system (iv) Body posture and balance

    The three types of cones are commonly most sensitive to three different colours (blue, green and red) due to

    The major coordinating center for sensory and motor signaling in our brain is

    The motor neuron leaves the spinal cord through

    In which animal nerve cell is present but brain is absent?

    For sound (good) reflex actions we require intact

    A person feels no sensation when he puts his hand over flame. The part of the brain which has damaged is

    Sequence of meninges from inner to outside is

    Identify the correct order in which vibrations travel through the auditory ossicles.

    The part of an eye which acts like diaphragm of a photographic camera, is

    When we move from light to dark, we fail to see for some time but soon the visibility becomes normal. It is called

    Trace the correct sequence for pathway of light through the eye to the retina.

    ‘X’ is an important part of ‘Y’ which lies at the base of the structure which is a major coordinating centre for sensory and motor signalling. It contains a number of centre which control body temperature, urge for eating and drinking. Identify X and Y from the options given below

    Impulse transmission across an electrical synapse is always than that across a chemical synapse.

    Neural organisation is simplest in the members of

    Sensory part of saccule and utricle is

    The diameter of the pupil is regulated by

    Which of the following contribute to the resting membrane potential of an axon? (a) High concentration of Na + in the ECF (b) Negatively charged proteins in the axoplasm (c) Sodium-potassium pump

    The movement of skeletal muscles is controlled by

    Sympathetic neural system does not

    Scala media is filled with

    The principal relay station for sensory impulses that reach the cerebral cortex from other parts of the brain and the spinal cord is the

    Nigh blindness can be prevented by consumption of carrots. The is explained by which of the following statement? a. Retinal, an aldehyde of vitamin A, is a component of rhodopsin. b. Rods helps in photopic vision. c. Cones help in scotopic vision. d. Carrots are a rich source of β -carotene which is a provitamin of vitamin A.

    Mark the incorrect statement about cerebrum.

    The thin elastic membrane that covers the rows of hair cells in the organ of Corti is

    The fovea centralis of the human eye consists of

    Nissl’s granules are

    Choose the correct set of actions brought about by parasympathetic nervous system. a. Increase in heart rate b. Constriction of pupil c. Dilation of blood vessels d. Relaxation of urinary bladder e. Slows down the peristalsis

    Which part of human ear is involved in the maintenance of balance of the body and posture?

    Which of the following is correct about the visible and coloured portion of the eye?

    Match the items given in column I with those in column II and select the correct option. Column I Column II (a) Hypothalamus (i) Pneumotaxic centre (b) Hippocampus (ii) Memory (c) Pons (iii) Cardiovascular reflexes (d) Medulla (iv) Thermoregulation

    Match the items given in column I with those in column II and select the correct option. Column I Column II (a) Hypothalamus (i) Pneumotaxic centre (b) Hippocampus (ii) Memory (c) Pons (iii) Cardiovascular reflexes (d) Medulla (iv) Thermoregulation

    Which of the following glands are present in the olfactory epithelium of the nose?

    Which of the following is the principal neurotransmitter at the vertebrate neuromuscular junction?

    Correct sequence of meninges of brain from inside to outside is

    Hypothalamus performs all the following functions, except

    Mark the correct combination of layers in the wall of eye ball.

    The left and right cerebral hemispheres are connected by

    Ceruminous glands are the wax secreting-glands present in the

    Which of the following is not common to all spinal reflexes?

    Which of the following statements is correct ?

    Which of the following part of the human brain is also called an emotional brain?

    Which of the arrangement of meninges is correct (inside to outside)?

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

    Which of the following structure has the highest concentration of cone cells?

    The tough protective layer of brain is (i) and inner highly vascularized protective layer is (ii) .

    The inner layer of the eye is (i) which contains layer of cells from inside to outside in an order (ii) .

    Afferent nerve fibers carry impulses from

    Which of the following parts of the human eye comprises of densely packed cones?

    The association areas of the brain are responsible for

    Lens of eyes is derived from

    Which lobe of cerebrum is responsible for solving analytical problems?

    The supporting cells of nervous tissue that make up more than one-half volume of neural tissue are

    Which of the following structures is present in the diencephalon?

    Depolarisation of axolemma during nerve conduction takes place because of

    All statements about aqueous humor are false, except that

    In the structure of a human neuron, the nodes of Ranvier are found on

    With reference to different structures of the human brain, which one is an incorrect match?

    Semicircular canals exhibit all these features, except;

    In Hydra, the neural organisation is comprised of

    How many of the following statements is /are correct ? (i) Multipolar neurons are found in the cerebral cortex. (ii) Unipolar neurons have a cell body with one axon only. (iii) Bipolar neurons are found in retina of the eyes. (iv) The post-synaptic neurons are filled with neurotransmitter containing vesicles.

    The point where the optic nerve leaves the eye is called

    Which of the following statements is not correct?

    Reflex action is controlled by

    The part of internal ear responsible for dynamic balancing is

    Which of the following correctly enlists the components of the central neural system?

    Bipolar neurons are found in

    Area of retina in human eye containing only cone cells is called

    The spinal cord in man extends from the

    The anterior portion of external layer of eye is called

    In the course of evolution, ‘nerve net’ first appeared in which of the following taxonomic groups?

    Which one of the following is a major coordinating centre for sensory and motor signalling?

    Identify the mismatched combination from the following. Column-I Column-II Column-III 1 Multipolar neuron One axon and two or more dendrites Cerebral cortex 2 Bipolar neuron One axon and one dendrite Retina of eye 3 Unipolar neuron Cell body with axon only Embryonic stage 4 Unmyelinated neuron Schwann cells are not associated Autonomous nervous system

    Read the following characteristics. (a) These are granular bodies (b) Found in cell body and dendrites (c) Formed by RER and free ribosomes (d) Help in protein synthesis In a neuron, the above characteristics are related to

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