Posted inunclassified Biology: Sense Organs Vol 2 Posted by By Agodirin October 6, 2024 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 17 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 Created by Agodirin Biology: Sense Organs Vol 2 1 / 50 1. sense71_which of the following refers to opacity of the lens A) hypermetropia B) cataract C) astigmatism D) myopia A cataract causes the lens to become cloudy or opaque 2 / 50 2. sense94_the part of the brain responsible for perception of smell is A) olfactory lobe B) thalamus C) retina D) hypothalamus The olfactory lobes process the signals from the olfactory receptors and are responsible for the perception of smell. 3 / 50 3. sense89_which of the following is not involved in maintaining balance and posture A) semicircular canal B) incus C) otolith D) endolymph The incus is one of the three bones in the middle ear that aid in hearing, not in maintaining balance. 4 / 50 4. sense53_the part of the tongue that tastes bitterness is A) tip B) side front C) middle back D) side back The back of the tongue (especially the middle back) is most sensitive to bitter tastes 5 / 50 5. sense99_Persons that lack the ability to tell the taste of substances are A) astigmatism B) non-tasters C) presbyopia D) tasteless Taste-blindness or non-tasters refers to the inability to perceive certain tastes 6 / 50 6. sense91_which of the following is not a cause of deafness A) wax in ear B) syphillis C) Malaria D) loud music While loud music, earwax buildup, and syphilis can lead to hearing problems, malaria is not directly associated with deafness. 7 / 50 7. sense52_the part of the tongue that tastes sweetness is A) side back B) middle back C) side front D) tip The tip of the tongue is generally associated with the sensation of sweetness. 8 / 50 8. sense73_which of the following is a disease where the accomodation of the lens of the eye is impaired A) astigmatism B) hypermetropia C) presbyopia D) cataract Presbyopia is the age-related loss of the eye's ability to focus on nearby objects. 9 / 50 9. sense93_A person who cannot detect a particular smell or scent is A) odour-blind B) presbyopia C) nose-bleeder D) nosy Odour-blindness refers to the inability to detect certain smells. 10 / 50 10. sense56_What is the correct sequence for the perception of smell in mammals? A) chemical to olfactory nerve to brain B) dissolved chemical to sensory cells to olfactory nerve to brain C) dissolved chemicals to auditary nerve to brain D) dissolved chemicals to sensory cells to brain The correct sequence involves dissolved chemicals being detected by sensory cells in the nasal cavity, which then send signals through the olfactory nerve to the brain. 11 / 50 11. sense84_which of the following is required for night vision A) vitamin A B) Vitamin C C) Vitamin D D) vitamin K Vitamin A is essential for the production of rhodopsin, a pigment in the retina that is crucial for low-light (night) vision. 12 / 50 12. sense69_which of the following refers to short-sightedness A) myopia B) astigmatism C) cataract D) hypermetropia Myopia is the condition where distant objects appear blurry. 13 / 50 13. sense85_which of the following is the correct order in the mechanism of vision A) lens, cornea, optic nerve, retina, visual center B) cornea, lens, retina, optic nerve, visual center C) cornea, optic nerve, lens, retina, visual center D) lens, cornea, retina, optic nerve, visual center Light first enters through the cornea, is focused by the lens onto the retina, then transmitted via the optic nerve to the visual center of the brain 14 / 50 14. sense67_cataract of the eye affects which structure in the eye A) cornea B) lens C) iris D) pupil A cataract leads to clouding of the lens, affecting vision. 15 / 50 15. sense62_which of the following is correct about what happens in the eye when the eye is focusing on a near object A) the lens becomes longer and thinner B) the lens becomes shorter and fatter C) the light rays converge before the retina D) the light rays converge behind the retina To focus on near objects, the ciliary muscles contract, causing the lens to become thicker and more curved. 16 / 50 16. sense92_which of the following is not good advice for the ears A) treat nose infection promptly B) use earphones to listen to musci C) immunze children D) avoid loud sounds While using earphones isn't inherently bad, it can lead to hearing damage if played at high volumes for prolonged periods. 17 / 50 17. sense83_which of the following is not involved in maintaining balance and posture A) Malleus B) utriculus C) sacculus D) endolymph The malleus is one of the bones in the middle ear and is involved in hearing, not balance. The sacculus, utriculus, and endolymph are involved in maintaining balance 18 / 50 18. sense88_which of he following is the correct order of the mechanism of hearing A) pinna, cochlea, tympanic memberane, ossicles, auditory nerve, brain B) pinna,tympanic memberane, ossicles, cochlea, auditory nerve, brain C) pinna, tympanic memberane, cochlea, ossicles, auditory nerve, brain D) pinna, ossicles,tympanic memberane, cochlea, auditory nerve, brain Sound waves enter through the pinna, vibrate the tympanic membrane, transferred by ossicles, and then transmitted to the cochlea and auditory nerve, reaching the brain 19 / 50 19. sense57_The ability of the human eyes to focus far and near object is A) accommodation B) reflection C) refraction D) absorbtion Accommodation is the process by which the eye's lens changes shape to focus on objects at different distances. 20 / 50 20. sense63_which of the following is correct about what happens in the eye when the eye is focusing on a far or distant object A) the light rays converge before the retina B) the light rays converge behind the retina C) the lens becomes longer and thinner D) the lens becomes shorter and fatter When focusing on distant objects, the ciliary muscles relax, making the lens flatter and thinner. 21 / 50 21. sense95_which of the following have good sense of smell A) fowl B) dogs C) fish D) man Dogs have a highly developed sense of smell, significantly superior to that of humans. 22 / 50 22. sense61_which of the following focuses light to the retina of the eye A) iris B) cornea C) lens D) pupil The lens adjusts its shape to focus light onto the retina. 23 / 50 23. sense64_in what situation will an object be visible to the eyes A) if the light rays from the object convert on the retina B) if the light rays from the object convert before or after the blind spot C) if the light rays from the object coverge before or after the retina D) if the light ray from the object converge on the blind spot For an object to be visible, light rays must focus on the retina, allowing the brain to interpret the image. 24 / 50 24. sense75_when a kind of cone receptor is absent in the eye the person has A) astigmatism B) presbyopia C) cataract D) color blindness Color blindness occurs when one or more types of cone photoreceptors are missing or not functioning 25 / 50 25. sense96_the correct order in the mechanism of perceiving smell A) dissolved chemical, olfactory nerve, sensory cell, olfactory lobe B) chemical dissolve in moist membrane, sensory cells, olfactory nerve, olfactory lobe C) sensory cell, chemical dissolve in moist membrane, olfactory nerve, olfactory lobe D) chemical, olfactory nerve, olfactory lobe Smell perception begins with chemicals dissolving in the moist membrane, activating sensory cells, which send signals via the olfactory nerve to the olfactory lobe. 26 / 50 26. sense80_which of the following is not good advice for the eyes A) when reading the source of light should be from the back B) when reading place the book at 30-50cm distance C) protect the eye from infection D) Do not read while lying on bed It is better for light to come from the front or side to avoid glare and help with visibility. 27 / 50 27. sense76_which of the following is not correct about presbyopia A) it comes with old age B) the lens is soft C) the lens cannot accommodate D) it is corrected with bifocal glasses In presbyopia, the lens becomes harder and less flexible over time. 28 / 50 28. sense86_which of the following is not correct about the mechanism of vision A) the cornea, acqueuos , lens and vitreous all refract light rays towards the retina B) the image formed on the retina is upright C) the part of the brain where vision is recognized is the visual center D) the blind spot is where the optic nerves penetrates the back of the eye The image formed on the retina is inverted (upside down) before being processed by the brain, which corrects it. 29 / 50 29. sense74_which of the following conditions requires bifocal lens A) astigmatism B) hypermetropia C) cataract D) presbyopia Bifocal lenses are often prescribed for presbyopia to aid in seeing both near and far. 30 / 50 30. sense70_which of the following refers to long sightedness A) astigmatism B) hypermetropia C) cataract D) myopia Hypermetropia (or hyperopia) is the condition where close objects appear blurry. 31 / 50 31. sense82_which of the following is not involved in bending of the eye towards the retina A) cornea B) lens C) fovea D) acqueous humor The fovea is a small pit in the retina responsible for sharp central vision, but it does not participate in bending light. The cornea, aqueous humor, and lens all play roles in refraction. 32 / 50 32. sense77_Which of the following occurs when the curvature of the lens of the eye becomes uneven A) cataract B) presbyopia C) astigmatism D) color blindness Astigmatism results from an uneven curvature of the lens or cornea, causing blurred vision 33 / 50 33. sense59_the structure in the eye that changes the focus of the lens to see both far and near objects is the A) ciliary muscle B) optic nerve C) suspensory ligament D) lacrimal gland The ciliary muscle adjusts the shape of the lens for focusing on objects at various distances. 34 / 50 34. sense79_which of the following is not good advice for the eyes A) avoid reading tiny prints B) read in dim light C) avoid rubbing D) take vitamin A Reading in dim light can strain the eyes and is generally not recommended 35 / 50 35. sense65_which of the following happens when there is too much light in the environment A) the pupils become wider B) the lens becomes darker C) the lacrimal gland secretes more D) the pupils constrict In bright light, the pupils constrict to reduce the amount of light entering the eye. 36 / 50 36. sense78_which of the following is not correct about color blindness A) it is sex-linked inheritance B) it occurs when a rod receptor is absent from the retina C) it manifests in males only D) the person will not be able to identify some colors Color blindness is related to cone receptors, not rod receptors 37 / 50 37. sense66_which of the following happens when there is dim light in the environment A) the pupils dilate B) the pupils constrict C) the lens becomes longer D) the lens becomes shorter In dim light, the pupils dilate to allow more light to enter the eye for better vision. 38 / 50 38. sense54_the part of the tongue that tastes salt is A) side front B) tip C) side back D) middle back The sides of the front part of the tongue are typically sensitive to salty flavors. 39 / 50 39. sense68_which of the following is not correct about short sightedness A) they can only see far objects B) the light rays fall short of the retina C) they are corrected by concave or diverging lens D) they eyeball is too long People with short-sightedness (myopia) can see near objects clearly but struggle with distant ones 40 / 50 40. sense87_which of the following animals does not have eyes that shine at night A) tiger B) cat C) owl D) chicken Chickens do not possess a tapetum lucidum, the reflective layer that allows for night vision, unlike owls, cats, and tigers. 41 / 50 41. sense55_the part of the tongue that tastes sour is A) side back B) side front C) tip D) middle back The back sides of the tongue are primarily responsible for detecting sour tastes. 42 / 50 42. sense58_which of the following is not involved in vision A) lens B) retina C) auditory nerve D) visual center of the brain The auditory nerve is involved in hearing, not in vision. The visual center of the brain, retina, and lens are all involved in the visual process. 43 / 50 43. sense72_which of the following is not correct about long sightedness A) it is corrected by concave lens B) they can see only distant objects C) the eyeball is too short D) the light rays converge behind the retina Long-sightedness is corrected by convex lenses, not concave lenses. 44 / 50 44. sense98_the correct order in the mechanism of perceiving taste A) substance dissolve in saliva, taste bud, sensory cell, glossopharyngeal nerve, olfactory lobe B) substance dissolve in saliva, taste bud, olfactory nerve, brain C) substance dissolve in saliva, taste bud, sensory cells, glossopharyngeal nerve, brain D) substance dissolve in saliva, taste bud, sensory cells, auditory nerve, brain Taste begins when a substance dissolves in saliva, activates taste buds, sends signals to sensory cells, travels via nerves to the brain. 45 / 50 45. sense81_the organism that causes river blindness is A) mosquito B) spider C) onchocerca D) housefly Onchocerca volvulus is the parasitic worm that causes river blindness (onchocerciasis), typically transmitted by blackflies. 46 / 50 46. sense90_which of the following is damaged by very loud noise or sound leading to deafness A) semicircular canal B) tympanic memberane C) auditory nerve D) pinna Loud noises can damage the auditory nerve or the hair cells within the cochlea, leading to hearing loss. 47 / 50 47. sense60_the structure in the eye that holds the lens in place is the A) iris B) suspensory ligament C) pupil D) cornea The suspensory ligaments (or zonules) attach the lens to the ciliary body, holding it in place 48 / 50 48. sense100_A substance used to test for genetic inheritance of inability to taste is A) phenylthiocarbimide(PTC) B) thyroxine C) starch D) Salt PTC is commonly used in genetic studies to determine the ability to taste certain compounds, as its perception is inherited. 49 / 50 49. sense97_which of the following does not have a specific taste bud for perception in the tongue A) salt B) sugar C) pepper D) honey While the tongue has taste buds for sweet, salty, sour, and bitter, pepper does not have a specific taste bud but is often perceived through taste and pain receptors. 50 / 50 50. sense51_the nerve that is involved with smell A) auditary nerve B) optic nerve C) olfactory nerve D) median nerve The olfactory nerve is responsible for transmitting smell information from the nasal cavity to the brain. 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