This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 21 Neural Control And Coordination – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 21 Neural Control And Coordination Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The electrical potential difference across the depolarized membrane is called- A) Action potential. B) Resting potential. C) Water potential. D) Solute potential. Show Answer Correct Answer: A) Action potential. 2. Which of the following systems transmits impulse from CNS to involuntary organs and smooth muscles? A) Somatic neural system. B) Sympathetic neural system. C) Parasympathetic neural system. D) Autonomic neural system. Show Answer Correct Answer: D) Autonomic neural system. 3. Transmission of an impulse across ..... is very similar to impulse conduction along a single axon. A) Chemical Synapse. B) Electrical Synapse. C) Chemical and Electrical signal both. D) Neither electrical nor chemical synapse. Show Answer Correct Answer: B) Electrical Synapse. 4. Which cells (layer) of retina faces the lens A) Ganglion cells. B) Photoreceptor cells. C) Bipolar cells. D) Pigmented cells. Show Answer Correct Answer: A) Ganglion cells. 5. Colour of eye is due to- A) Iris. B) Lens. C) Pupil. D) Cornea. Show Answer Correct Answer: A) Iris. 6. Bipolar neuron- A) Has two dendrons. B) Has one dendron and one axon. C) Is interneuron. D) Has no dendron. Show Answer Correct Answer: B) Has one dendron and one axon. 7. A-The imbalance in concentration of Na+, K+ and proteins generates resting potential.R-To maintain the unequal distribution of Na+ & K+, the neurons use electrical energy. 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 and R is false. Show Answer Correct Answer: C) A is true but R is false. 8. Schwann cell are found in A) Myelinated nerve fibres. B) Unmyelinated nerve fibres. C) Both a and b. D) None of the above. Show Answer Correct Answer: C) Both a and b. 9. S 1-Schwann cell are present in unmyelinated nerve fibre .S 2-Unmyelinated nerve fibre is commonly found in autonomous and the somatic neural systems. A) Both are correct. B) Both are incorrect. C) Only S1 is correct. D) Only S2 is correct. Show Answer Correct Answer: A) Both are correct. 10. A-pseudounipolar neurons are present in dorsal root ganglion of the spinal cordR-their dendrites are in receptors and axon terminals are in grey matter of the spinal cord 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: A) A&R both true, R is correct explanation of A. 11. A-neural organization is very simple in lower invertebratesR-in Hydra this organization is composed of network of neurons 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: B) A&R both true, but R is not correct explanation of A. 12. Which of the following is the main function of neurons in the neural system? A) To detect, receive, and transmit different kinds of stimuli. B) To produce hormones for the body. C) To store energy for muscle contraction. D) To transport oxygen in the blood. Show Answer Correct Answer: A) To detect, receive, and transmit different kinds of stimuli. 13. When the eyeball is too long causing Nearsightedness A) Myopia. B) Hyperopia. C) Asigmatism. D) Presbyopia. Show Answer Correct Answer: A) Myopia. 14. A segment of neuronal membrane showing action potential is said to be- A) Polarized. B) Depolarized. C) Repolarized. D) None of the above. Show Answer Correct Answer: B) Depolarized. 15. The function of our visceral organs are controlled by A) Sympathetic and somatic nervous system. B) Sympathetic and parasympathetic nervous system. C) Central and somatic nervous system. D) None of the above. Show Answer Correct Answer: B) Sympathetic and parasympathetic nervous system. 16. The cochlea of ear contains A) Perilymph. B) Aqueous humour. C) Perilymph and endolymph. D) Only endolymph. Show Answer Correct Answer: C) Perilymph and endolymph. 17. Which of the following is NOT a function controlled by the central neural system? A) Regulation of voluntary movements. B) Processing of vision and hearing. C) Digestion of food in the stomach. D) Control of circadian rhythms. Show Answer Correct Answer: C) Digestion of food in the stomach. 18. During conduction of nerve impulse, when stimulus is applied A) Na+ move out of axoplasm. B) Na+ moves into axoplasm. C) K+ moves into axoplasm. D) Ca+2 moves into axoplasm. Show Answer Correct Answer: B) Na+ moves into axoplasm. 19. Which part of the human ear plays no role in hearing as such but is otherwise very much required? (1) Ear ossicles (2) Eustachian tube (3) Organ of corti (4) Vestibular apparatus A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 20. After the transmission of one impulse from the synapse, it cannot transmit another impulse because of exhaustion of the following chemical (1) Choline (2) Acetic acid (3) Receptors of neurotransmitters (4) Neurotransmitters A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 21. Nissl bodies are mainly composed of A) Nucleic acids and SER. B) DNA and RNA. C) Proteins and lipids. D) Free ribosomes and RER. Show Answer Correct Answer: D) Free ribosomes and RER. 22. Which part of the neuron is responsible for receiving signals from other neurons? A) Axon. B) Dendrites. C) Cell body. D) Synaptic terminal. Show Answer Correct Answer: B) Dendrites. 23. The secretion of gastric juice is controlled by A) Cerebellum. B) ANS. C) Cerebrum. D) Medulla. Show Answer Correct Answer: D) Medulla. 24. Which type of neuron is characterized by having one axon and two or more dendrites? A) Bipolar. B) Unipolar. C) Multipolar. D) Myelinated. Show Answer Correct Answer: C) Multipolar. 25. Type of photoreceptor that is active in bright light and perceives color? A) Fovea centralis. B) Cones. C) Rods. D) Optic disk. Show Answer Correct Answer: B) Cones. ← 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 7Class 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