Class 11- Biology- chapter 18- Neural Control and Coordination InstructionTotal Questions : 20Total time :20 minTotal Marks : 20 x 3 = 60 MarksEach Correct Question carries : 3 MarksEach incorrect Question Carries : -1 MarksEach Unattempted Question carry : 0 MarksBe careful On Negative Markings 1. The _________ is central for planning the movements and blocking unsuitable behavior, and also has roles in memory. motor cortex prefrontal cortex visual cortex somatosensory cortex None 2. Find out the incorrect statement. Macula and cristae are present in the inner ear which function in hearing. The organ of corti is present on the basilar membrane in the cochlea. Rods contain pigmented protein called rhodopsin which helps in dim light vision. The tongue contains gustatory receptors for sweet, salt, sour and bitter None 3. Read the statements about human neural system and find the wrong one. Somatic neural system is classified into sympathetic and parasympathetic systems Autonomic neural system transmits impulses from CNS to involuntary organs and smooth muscles. PNS is divided into somatic and autonomic neural systems. CNS includes the brain and spinal cord. None 4. Select the correct statement regarding the Schwann cells. Form basement membrane of epithelium. Surround axon of myelinated nerve fibre Support muscle fibres Found in Haversian system of bones None 5. Which of the following is not a characteristic of the human sympathetic nervous system? Prepares the person for fight or flight Is a craniosacral division of the autonomic nervous system Has ganglia near the spinal cord Increases heart beat None 6. Which statement is incorrect regarding cerebral cortex? Large area of cortex neither clearly sensory nor motor Fibres of tract in cortex are covered with myelin sheath3 It shows prominent fields It consists of grey matter None 7. The parasympathetic division of the autonomic nervous system: is concerned with conserving and restoring energy H arises from the cranial and sacral spinal cord segments has ganglia near or within visceral effectors all of the above None 8. The muscles responsible to move the eye ball are the 2 recti and 4 oblique muscles 2 oblique and 4 recti muscles 4 recti and 4 olique muscles 2 recti and 2 oblique muscles None 9. The direction of light striking the retina will be- Sensory nerves → → ganglionic cells → → bipolar neurons → → photosensory cells Sensory nerves → → bipolar neurons → → ganglionic cells → → Photosensory cells Photosensory cells → → bipolar neurons → → ganglionic cells → →sensory nerves Photosensory cells → → ganglionic cells → → bipolar neurons → → sensory nerves None 10. Choose the correct answer from the alternatives given.The cervical plexus supplies the: head, neck, and shoulders upper extremities head and shoulders abdominal regions None 11. Select the wrong paired match from the following. PNS - Transmission of impulses to and from the CNS ANS - Transmission of impulses from the CNS to voluntary organs CNS - Site of information processing and control SNS - Relays impulses from the CNS to skeletal muscles None 12. The following are endothermic mammals. Amongst them there is a pair where the broad transverse band of nervous tissue connecting the two cerebral hemisphere is either poorly developed or absent1. Didelphis (Opossum) 2. Delphinus (Dolphin)3. Tachyglossus (Echidna) 4. Pteropus (Fruit Bat) 3 and 4 2 and 4 1 and 2 1 and 3 None 13. Overall nerves slow down the body and divert energy to digestion and other basic housekeeping tasks; and nerves slow down housekeeping tasks and increase overall activity, in times of heightened awareness or excitement. Parasympathetic; Sympathetic Sympathetic; Parasympathetic Peripheral; Central Autonomic; Somatic None 14. Which one of the following is not a refractive medium of the eye? Vitreous humour Lens Pupil Aqueous humour None 15. The peripheral nervous system transmits messages to and from the sense organs and is responsible for Involuntary actions Voluntary actions Autonomic actions Reflex actions None 16. When a person is suddenly pushed from height by an attacker, his blood pressure and heart rate increase. Control through which centre of brain would normalise his condition? Cerebellum Pons Cerebrum Medulla oblongata None 17. Consider the following statements and state true or false.1. Synaptic cleft of neurons secrete adrenaline.2. Myelinated nerve fibres and enveloped with Schwann cells, which form a myelin sheath around the axon.3. Non-myelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath.4. Spinal cord and cranial nerves are made up of non-myelinated nerve fibres. 2 and 3 are correct while 1 and 4 are wrong. 1, 2 and 3 are correct but 4 is wrong. 3 and 4 are correct while 2 and 3 are wrong. 1, 2 are correct but 3 and 4 are wrong. None 18. Select the correct option:Blood-brain barrier in adults has ........... junctions between cells. Adhering Tight Gap Occluding None 19. All of the following are correct statements about non-medullated nerve fibres, except It is commonly found in autonomous and somatic neural system All the above It is found in spinal and cranial nerves It is enclosed by Schwennlls that do not form a myelin sheath around axons None 20. Pick the correct statements about the main functions of cerebrum in humans a)Control contraction of voluntary muscles through frontal lobe b)Control sensitivity, movement, memory, vocabulary through frontal lobe c)Control temperature, taste, touch, pain, etc. through parietal lobe d)Control vision and adaptation through occipital and frontal lobes a, c, d b, c, d a, b, d a, b, c None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
