This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 21 Neural Control And Coordination – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Nissil's granule are not fund in which of the following? A) Cell body. B) Axon. C) Dendrites. D) Both b and c. Show Answer Correct Answer: B) Axon. 2. A-Multipolar neuron are present in found in the cerebral cortex.B-Unipolar neuron are found usually in the embryonic stage. A) Both are correct. B) Both are incorrect. C) Only A is correct only. D) Only B is correct only. Show Answer Correct Answer: A) Both are correct. 3. Choose the type of nervous system and type of muscle supplying visceral organs A) Sympathetic nervous system, voluntary. B) Sympathetic nervous system, involuntary. C) Parasympathetic nervous system, voluntary. D) Both parasympathetic and sympathetic nervous system, voluntary. Show Answer Correct Answer: D) Both parasympathetic and sympathetic nervous system, voluntary. 4. ..... generally maintains the electrical charge across the neuronal membrane (1) Na$^{+}$-K$^{+}$ pump (2) Action potential (3) Resting potential (4) Voltage-gated channels A) 1. B) 3. C) 4. D) 2. Show Answer Correct Answer: A) 1. 5. Which part of the brain controls involuntary breathing? A) Hypothalamus. B) Medulla oblongata. C) Cerebellum. D) Diencephalon. Show Answer Correct Answer: B) Medulla oblongata. 6. Compare the Central neural system (CNS) and Peripheral neural system (PNS). A) CNS consists of the brain and spinal cord, while PNS consists of all neural elements outside the CNS. B) CNS consists of only the cerebellum, while PNS consists of the brain and spinal cord. C) CNS and PNS are both made up of only sensory neurons. D) CNS controls only voluntary actions, while PNS controls only involuntary actions. Show Answer Correct Answer: A) CNS consists of the brain and spinal cord, while PNS consists of all neural elements outside the CNS. 7. Multipolar neuron means- A) Neuron with one dendron and one axon. B) Neuron with many dendrons and one axon. C) Neuron with one dendron and many axons. D) Neuron with many dendrons only. Show Answer Correct Answer: B) Neuron with many dendrons and one axon. 8. 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. Show Answer Correct Answer: B) Away from the cell body. 9. Highly vascular and closely investing protective coat around brain is known as A) Pia mater. B) Dura mater. C) Arachnoid. D) Sub-arachnoid space. Show Answer Correct Answer: A) Pia mater. 10. The basic unit of the nervous system is- A) Cell body. B) Neuron. C) The dendrite. D) The axon. Show Answer Correct Answer: B) Neuron. 11. Bipolar neuron are found in- A) Embryonic stage. B) Retina of eye. C) Cerebral cortex. D) All of these. Show Answer Correct Answer: B) Retina of eye. 12. 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. Show Answer Correct Answer: A) Scotopic vision and is the function of rods. 13. Which part of our central neural system acts as a master clock? A) Hypothalamus. B) Midbrain. C) Cerebellum. D) Pons. Show Answer Correct Answer: A) Hypothalamus. 14. The Nervous System is divided into two parts called A) The Central Nervous System & The Peripheral Nervous System. B) The Corollary Nervous System & The Peripheral Nervous System. C) The Corollary Nervous System & The Paradigm Nervous System. D) The Central Nervous System & The Paradigm Nervous System. Show Answer Correct Answer: A) The Central Nervous System & The Peripheral Nervous System. 15. The nerve impulse is another name of A) Polarised potential. B) Repolarisation. C) Action potential. D) Resting potential. Show Answer Correct Answer: C) Action potential. 16. The part of the brain which is connected to the spinal cord is A) Cerebellum. B) Pons. C) Medulla oblongata. D) Hippocampus. Show Answer Correct Answer: C) Medulla oblongata. 17. In human body, neuroglial cells occur in the (1) Liver (2) Brain (3) Kidney (4) Brain and spinal cord A) 3. B) 4. C) 1. D) 2. Show Answer Correct Answer: B) 4. 18. A canal passes through the midbrain is called A) Cerebral aqueduct. B) Corpora quadrigemmia. C) Corpus callosum. D) Cerebral hemisphere. Show Answer Correct Answer: A) Cerebral aqueduct. 19. A-hypothalamus acts as a relay centreR-it is the center for thermoregulation, thirst and hunger A) A&R both true, R is correct explanation of A. B) A&R both true, but R is not correct explanation of A. C) A is true but R is false. D) Both A&R are false. Show Answer Correct Answer: D) Both A&R are false. 20. Grey matter is composed of A) Schwann cell. B) Cell body. C) Axon. D) Nerve fibre. Show Answer Correct Answer: B) Cell body. 21. How does the neural system provide coordination in the body? A) By controlling only the heart. B) By producing hormones. C) By providing an organised network of point-to-point connections. D) By increasing blood flow. Show Answer Correct Answer: C) By providing an organised network of point-to-point connections. 22. The bipolar neurons are found in the A) Middle ear. B) Cerebral cortex. C) Retina of eye. D) Embryonic stage. Show Answer Correct Answer: C) Retina of eye. 23. Explain the process of polarisation of the membrane of a nerve fibre. A) Polarisation is when the neuron releases neurotransmitters into the synaptic cleft. B) Polarisation is the integration of sensory inputs in the midbrain. C) Polarisation is the state where the inside of the neuron is negatively charged relative to the outside due to differential ion concentration. D) Polarisation is the process of the brain dividing into hemispheres. Show Answer Correct Answer: C) Polarisation is the state where the inside of the neuron is negatively charged relative to the outside due to differential ion concentration. 24. Which of the following cells are photoreceptor cells in human eye? A) Only cones. B) Only amacrine cells. C) Only rods. D) Only rods and cones. Show Answer Correct Answer: D) Only rods and cones. 25. Gel-like fluid posterior to the lens A) Retina. B) Aqueous Humor. C) Optic humor. D) Vitreous Humor. Show Answer Correct Answer: D) Vitreous Humor. 26. Myelin sheath is produced by A) Schwann cells and Oligodendrocytes. B) Astrocytes and Schwann cells. C) Oligodendrocytes and Osteoclasts. D) Osteoclasts and Astrocytes. Show Answer Correct Answer: A) Schwann cells and Oligodendrocytes. 27. The incorrectly matched pair is A) Cerebellum-Very convulated usrface. B) Corpora quadrigemina-Four rounded swellings present on ventral portion of midbrain. C) Medulla oblongata-Controls gastric secretion. D) Cerebral aqueduct-Canal that passes through midbrain. Show Answer Correct Answer: B) Corpora quadrigemina-Four rounded swellings present on ventral portion of midbrain. 28. The human hind brain comprises three parts, one of which is (1) Cerebellum (2) Hypothalamus (3) Spinal cord (4) Corpus callosum A) 4. B) 3. C) 2. D) 1. Show Answer Correct Answer: D) 1. 29. Explain the transmission of a nerve impulse across a chemical synapse. A) Transmission occurs when neurotransmitters are released from the pre-synaptic neuron and bind to receptors on the post-synaptic neuron. B) Transmission occurs when the brain sends signals to the spinal cord only. C) Transmission is the process of the cerebrum dividing into two halves. D) Transmission is the integration of information in the medulla. Show Answer Correct Answer: A) Transmission occurs when neurotransmitters are released from the pre-synaptic neuron and bind to receptors on the post-synaptic neuron. 30. Which one of the following is the primary function of occipital lobe? (1) Regulation of the hunger drive (2) Reception of visual impulses (3) Regulation of sleep cycle (4) Reception of touch senses A) 1. B) 4. C) 3. D) 2. Show Answer Correct Answer: D) 2. 31. Anatomically, human ear can be divided into ..... major sections. A) 6. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 32. An action potential in the nerve fibre is produced when positive and negative charges on the outside and the inside of the axon membrane are reversed, because (1) More potassium ions enter the axon as compared to sodium ions leaving it (2) More sodium ions enter the axon as compared to potassium ions leaving it (3) All potassium ions leave the axon (4) All sodium ions enter the axon A) 4. B) 2. C) 3. D) 1. Show Answer Correct Answer: B) 2. 33. S 1-Hypothalamus lies at the base of the thalamus.S 2-The cerebral cortex is referred to as the white matter due to its whitish appearance. A) Only S 1 is correct. B) Only S 2 is correct. C) Both are correct. D) Both are incorrect. Show Answer Correct Answer: A) Only S 1 is correct. 34. Which of the following is NOT in the OUTER EAR? A) External Auditory Meatus. B) Eustachian tube. C) Auricle. D) Tympanic Membrane. Show Answer Correct Answer: B) Eustachian tube. 35. Which of the following is regarded as a unit of nervous tissue? A) Axons. B) Dendrites. C) Myelin sheath. D) Neurons. Show Answer Correct Answer: D) Neurons. 36. A-SNS relay impulses from CNS to skeletal musclesR-ANS transmit impulses from CNS to involuntary organs and smooth muscles A) Both A and R is false. B) A is true but R is false. C) A&R both true, but R is not correct explanation of A. D) A&R both true, R is correct explanation of A. Show Answer Correct Answer: C) A&R both true, but R is not correct explanation of A. 37. The ear of human is enclosed in- A) Mastoid bone. B) Ethmoid Bone. C) Frontal and parietal bone. D) Temporal bone. Show Answer Correct Answer: D) Temporal bone. 38. What happens to the activities of nerves, lungs, heart, and kidney after physical exercise is stopped? A) They continue to function at an increased rate. B) They gradually return to their normal conditions. C) They stop functioning completely. D) They become uncoordinated. Show Answer Correct Answer: B) They gradually return to their normal conditions. 39. Nissl's granules are present in the ..... and are made up of respectively A) Muscle cells and DNA. B) Mast cells and RNA. C) Osteocytes and DNA. D) Neuron and RNA. Show Answer Correct Answer: D) Neuron and RNA. 40. Unipolar neuron / Unipolar nerve cells means A) Nerve cell with one dendron. B) Nerve cell with many dendrons. C) Nerve cell without dendrons. D) Neuron with one dendron and one axon. Show Answer Correct Answer: C) Nerve cell without dendrons. 41. What area of the brain do impulses from the Vestibular branch go to? A) Temporal. B) Brain Stem. C) Cerebrum. D) Cerebellum. Show Answer Correct Answer: D) Cerebellum. 42. Which of the following not involved in the knee jerk A) Inter neuron. B) Motor neuron. C) Muscle spindle. D) Brain. Show Answer Correct Answer: A) Inter neuron. 43. The polarity of the membrane is reversed A) During action potential. B) When there is nerve impulse at the site. C) And the membrane is said to be depolarized. D) All of these statements are correct. Show Answer Correct Answer: D) All of these statements are correct. 44. Destruction of the anterior horn cells of the spinal cord would result in loss of A) Voluntary motor impulses. B) Integrating impulses. C) Commissural impulses. D) Sensory impulses. Show Answer Correct Answer: A) Voluntary motor impulses. 45. Receptor sites for neurotransmitters are present on: A) Pre-synaptic membrane. B) Membrane of synaptic vesicles. C) Tips of axons. D) Post-synaptic membrane. Show Answer Correct Answer: D) Post-synaptic membrane. 46. The nerves carrying impulses to CNS are known as A) Afferent. B) Mixed. C) Efferent. D) Motor. Show Answer Correct Answer: A) Afferent. 47. Which part of human brain is concerned with the regulation of body temperature? A) Hypothalamus. B) Cerebellum. C) Cerebrum. D) Medulla oblongata. Show Answer Correct Answer: A) Hypothalamus. 48. Damage to the cerebellum would most affect the career of A) A teacher. B) A librarian. C) An architect. D) An athlete. Show Answer Correct Answer: D) An athlete. 49. What part of the eye has the highest concentration of rods and cones? A) Optic nerve. B) Fovea centralis. C) Optic disk. D) Iris. Show Answer Correct Answer: B) Fovea centralis. 50. The tract of nerve fibres connecting the two cerebral hemispheres is called A) Thalamus. B) Cerebral aqueduct. C) Corpus albicans. D) Corpus callosum. Show Answer Correct Answer: D) Corpus callosum. 51. Axon endings release from its synaptic vesicles, a neuro-transmitter substance known as (1) Acetylcholine (2) Acetylcholinesterases (3) Inositol-3-phosphate (4) Diacylglycerol A) 4. B) 1. C) 2. D) 3. Show Answer Correct Answer: B) 1. 52. The waxy substance secreting sebaceous glands present in skin of external auditory meatus are- A) Zeis gland. B) Harderian gland. C) Meibomian gland. D) Ceruminous gland. Show Answer Correct Answer: D) Ceruminous gland. 53. Which part of the eye absorbs light from the sides of the eye? A) Pupil. B) Ciliary body. C) Lens. D) Choroid. Show Answer Correct Answer: D) Choroid. 54. Neurons are excitable cells because their membranes are in a- A) Depolarised state. B) Polarized state. C) Repolarized state. D) None of the above is correct. Show Answer Correct Answer: B) Polarized state. 55. What is the correct order of the ossicles? A) Malleus, Incus Stapes. B) Incus, Malleus, Stapes. C) Stapes, Incus, Malleus. D) Stapes, Malleus, Incus. Show Answer Correct Answer: A) Malleus, Incus Stapes. 56. A polarized neuron is said to be in- A) Action potential. B) Spike potential. C) Resting potential. D) None of these. Show Answer Correct Answer: C) Resting potential. 57. The correct sequence meninges from inner to outerside is- A) $Arachnoid\rightarrow Duramater\rightarrow Piamater$. B) $Piamater\rightarrow Arachnoid\rightarrow Duramater$. C) $Duramater\rightarrow Arachnoid\rightarrow Piamater$. D) $Piamater\rightarrow Duramater\rightarrow Arachnoid$. Show Answer Correct Answer: B) $Piamater\rightarrow Arachnoid\rightarrow Duramater$. 58. The junction between the axon of one neuron and the dendrite of the next is called- A) Junction point. B) A joint. C) Synapse. D) Constant bridge. Show Answer Correct Answer: C) Synapse. 59. In nerve resting membrane potential is maintained by: A) Active transport. B) Passive diffusion. C) Both (a) and (b). D) Unidirectional flow of ion. Show Answer Correct Answer: C) Both (a) and (b). 60. A. A neuron is a macroscopic structure composed of three major parts.B. The axons transmit nerve impulses away from the cell body to a synapse or to a neuro-muscular junction. A) Both A and B are correct. B) Both A and B are incorrect. C) Only A is correct. D) Only B is correct. Show Answer Correct Answer: D) Only B is correct. 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