This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 21 Neural Control And Coordination – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In reflex action, the reflex arc is formed by- A) Muscle, receptor, brain. B) Brain, spinal cord, muscle. C) Receptor, spinal cord, muscle. D) Muscle, spinal cord, receptor. Show Answer Correct Answer: C) Receptor, spinal cord, muscle. 2. When you enter a dark room with no light .Which photoreceptor cells gets activated? A) Cones. B) Rods. C) Both Rods and Cones. D) None. Show Answer Correct Answer: D) None. 3. In ear Nerve impulses are generated and transmitted by the afferent fibres to the auditory cortex of the brain.2. The forebrain consists of cerebrum, thalamus and hypothalamus. A) Both are correct. B) Both are incorrect. C) Only 1 is correct. D) Only 2 is correct. Show Answer Correct Answer: A) Both are correct. 4. Reflex action is controlled by- A) CNS. B) PNS. C) ANS. D) None of these. Show Answer Correct Answer: A) CNS. 5. What happens when an impulse (action potential) arrives at the axon terminal of a neuron at a chemical synapse? A) The axon terminal absorbs neurotransmitters from the synaptic cleft. B) Synaptic vesicles move towards the membrane and release neurotransmitters into the synaptic cleft. C) The synaptic cleft closes to prevent transmission. D) The post-synaptic membrane generates its own action potential automatically. Show Answer Correct Answer: B) Synaptic vesicles move towards the membrane and release neurotransmitters into the synaptic cleft. 6. The association areas are not responsible for (1) Intersensory associations (2) Communication (3) Regulation of sexual behaviour (4) Memory A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 7. The purplishred pigment rhodopsin contained in the rods type of photo receptor cells of the human eye, is a derivative of A) Vitamin B1. B) Vitamin C. C) Vitamin D. D) Vitamin A. Show Answer Correct Answer: A) Vitamin B1. 8. At the posterior pole of eye latter to blind spot, there is a yellowish pigmented spot called ..... with a central pit called ..... A) Corpus luteum, Fovea. B) Macula, fovea. C) Macula lutea, fovea. D) Macula, columella. Show Answer Correct Answer: C) Macula lutea, fovea. 9. The white portion of the eye (In Humans). A) Pupil. B) Sclera. C) Dyslexia. D) Retina. Show Answer Correct Answer: B) Sclera. 10. The inner parts of cerebral hemispheres and a group of associated deep structures like amygdala, hippocampus, etc; form a complex structure called- A) Reticular system. B) Corpora quadrigemina. C) Limbic lobe / limbic system. D) Arbor vitae. Show Answer Correct Answer: C) Limbic lobe / limbic system. 11. Which of the following forms the cerebro spinal fluid? A) Choroid plexus. B) Dura matter. C) Arachnid matter. D) Cerebrum and spinal cord. Show Answer Correct Answer: A) Choroid plexus. 12. All the nerve of the body associated with CNS are comprised of A) Peripheral neural system. B) Somatic neural system. C) Autonomic neural system. D) Symppathetic neural system. Show Answer Correct Answer: A) Peripheral neural system. 13. Which of the following cranial nerve of man is both sensory and motor? A) Olfactory. B) Trigeminal. C) Optic. D) Auditory. Show Answer Correct Answer: B) Trigeminal. 14. Na$^{+}$-K$^{+}$ pumpI. No needs energy (ATP) to workII. Expels 3 Na$^{+}$ for every 2K+ ions importedIII. Works against a concentration gradientIV. Maintains resting potential A) All are correct. B) Only II and III are correct. C) Only I and III are correct. D) Only I is incorrect. Show Answer Correct Answer: D) Only I is incorrect. 15. The pneumotaxic centre in the body is A) Heart. B) Lung. C) Medulla. D) Liver. Show Answer Correct Answer: C) Medulla. 16. A circular canal.which is found in limbus part of eyes is called A) Hyaloid canal. B) Canal of Schlemm. C) Canal of cloquet. D) Eustachian tube. Show Answer Correct Answer: B) Canal of Schlemm. 17. Which of the following cells form myelin sheath around axon- A) Neuroglial cell. B) Neuron. C) Schwann cell. D) Astrocyte. Show Answer Correct Answer: C) Schwann cell. 18. If Chlorolab of retina is damaged which colour can not be visualised? A) Green. B) Red. C) Yellow. D) Many colours. Show Answer Correct Answer: D) Many colours. 19. What is the main difference between afferent and efferent neurons? A) Afferent neurons carry impulses to the central nervous system, while efferent neurons carry impulses away from it. B) Efferent neurons carry impulses to the central nervous system, while afferent neurons carry impulses away from it. C) Both carry impulses only within the brain. D) Both are only found in the spinal cord. Show Answer Correct Answer: A) Afferent neurons carry impulses to the central nervous system, while efferent neurons carry impulses away from it. 20. Which of the following system relays impulse from CNS to skeletal muscles? A) Somatic neural system. B) Sympathetic neural system. C) Parasympathetic neural system. D) Autonomic neural system. Show Answer Correct Answer: A) Somatic neural system. 21. What is the term used for the electrical potential difference at the site of excitation, which is also known as a nerve impulse? A) Resting potential. B) Action potential. C) Depolarization. D) Repolarization. Show Answer Correct Answer: B) Action potential. 22. What do Axon Terminals do? A) Intakes information from other neurons. B) Produces fatty tissue for the Myelin Sheath. C) Sends information to the next cell. D) Controls the speed of electrical signal through the axon. Show Answer Correct Answer: C) Sends information to the next cell. 23. Sodium-Potassium 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 out wards and 3 Na ions into the cell. D) 3 K ions outwards and 2 Na ions into the cell. Show Answer Correct Answer: B) 3-Na ions outwards and 2 K ions into the cell. 24. What generally maintains the electrical charge across the neuronal membrane? A) Na$^{+}$-K$^{+}$ pump. B) Action potential. C) Resting potential. D) Voltage-gated channels. Show Answer Correct Answer: A) Na$^{+}$-K$^{+}$ pump. 25. For most excitable cells, the threshold stimulus is A) +40 mV. B) -55 to-60 mV. C) +60 mV. D) -70 mV. Show Answer Correct Answer: B) -55 to-60 mV. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 21 Neural Control And Coordination Quiz 1Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 2Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 3Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 4Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 5Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 6Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 8Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 9Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 10Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books