29. Which of the following is a correct statement about the cells of the human retina? A) Cone cells can detect color, but rod cells cannot. B) Cone cells are more sensitive to light than rod cells are. C) Cone cells, bit not rod cells, have a visual pigment. D) Rod cells are most highly concentrated in the center of the retina. 30. What structural feature(s) contribute(s) most to the diverse adaptations for animal movement? A) sensory system B) skeletal system C) muscular system D) nervous system E) B and C only

29. Which of the following is a correct statement about the cells of the human retina? A) Cone cells can detect color, but rod cells cannot. B) Cone cells are more sensitive to light than rod cells are. C) Cone cells, bit not rod cells, have a visual pigment. D) Rod cells are most highly concentrated in the center of the retina. 30. What structural feature(s) contribute(s) most to the diverse adaptations for animal movement? A) sensory system B) skeletal system C) muscular system D) nervous system E) B and C only

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter41: Sensory Systems

Section: Chapter Questions

Problem 6TYK: The eyes of vertebrates and cephalopods are similar in structure and function. A difference between...

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6. What is not a part of the human eye? a) retina b) eye lens c) optical nerve head d) all of the above are parts of human eye 7. Healthy human eye is most sensitive to: a) light wavelength of 380 nm b) light wavelength of 560 nm c) light wavelength 780 nm d) human eye is equally sensitive to all light wavelengths 8. What is true about myopia and hyperopia? a) shortsighted person sees clearly up close, farsighted sees clearly at distance. b) shortsighted person sees blurry at distance, farsighted sees blurry up close. c) shortsighted person sees clearly at distance, farsighted sees clearly up close. d) A and B are correct 9. What is Jaeger test intended for? a) to check distant vision acuity b) to check near vision acuity c) to check the color perception d) A and B are correct 10. Eye accommodation is: a) focusing on close objects b) focusing on distant objects e) ability to focus on the close or distant objects d) ability to adjust to changes in brightness
Which of the following best describes the function of a camera type eye? A) To form high-definition images that are transmitted to the brain. B) To gather and concentrate light through a lens onto retinal tissue which generates an impulse that is transmitted to the brain. C) To protect the optic nerve which generates an impulse that is transmitted to the brain. D) To detect vibrations through the vitreous body which generates an impulse that is transmitted to the brain.
Axonal growth cones from amphibian retinal ganglion cells are directed to their tectal targets by a) ephrin receptor gradients in the tectum. b) ephrin ligand gradients in the retina. c) ephrin ligand gradients in the tectum. d) slit gradients in the retina.
3. Soru Which of the following is a false statement about photoreceptors of the eye? A) Cones are active at high light levels and have high spatial acuity. B) Rods are responsible for scotopic vision while cones are responsible for photopic vision. C) Rods are active at low light level and have low spatial acuity. D) There are two types photoreceptors: rods and cones. E) The ratio of rods to cones in the retina is higher in humans than it is in dogs.
Within the vestibular system of vertebrates, hair cells help detect movement when their cilia are bent by Multiple Choice a) the tectorial membrane. b) statoliths. c) gravity. d) otoliths. e) the basilar membrane.
17. Phototransduction in retinal rod cells in response to light is triggered by which of the following events? A) Activation of CAMP B) Capture of photons by opsin C) Depolarization of photoreceptors D) Increase in concentration of cGMP E) Influx of Ca²+ into rods 0.0
Read the following articles and answer the questions below: Stage 1: Reception and the Receptive FieldQ1) Electromagnetic radiation emitted by the LCD display is detected by which type of sensory receptors in the dragonfly?a) thermoreceptors b) chemoreceptors c) photoreceptors d) mechanoreceptors Q2) What component of a sensory receptor determines its spectral sensitivity, that is, the ability to detect varying wavelengths of light?a) amplification via 2nd messenger cascadesb) opsin photopigmentsc) stereocilia of the outer segmentd) capillary beds providing nourishment to the retina Q3) The capability to resolve rapid changes of light over time and to discriminate adjacent points of light in space are respectively referred to as?a) adaptation and adjustable lens refraction (accommodation) b) contrast sensitivity and thresholding of the visual systemc) temporal and spatial resolution (acuity) of the visual system d) scotopic and phototopic vision regimes The ‘receptive field’ of a…
1) Without otoliths, vertbrates would be unable to detect ______." A) angular acceleration of their head and body B) sound C) the direction of gravity D) vertebrates would be unable to detect any of these without otoliths 2) Select the correct statement about the vestibular apparatus. A) The weight of the fluid contained within the semicircular canals against the basilar membrane is responsible for the detection of gravity B) Each of the 3 semicircular canals is oriented along a different plane. C) The otoliths respond only to angular acceleration and deceleration, linear motion is detected by water pushing against the gelatinous cupula. " D) All of these are correct.
The eyes of vertebrates and cephalopods are similar in structure and function. A difference between the vertebrate eye and the cephalopod eye is that the vertebrate eye has: a. an iris surrounding the pupil, whereas in cephalopods the pupil surrounds the iris. b. a lens that changes shape when focusing, whereas in cephalopods the lens moves back and forth to focus. c. a retina that moves in the socket when recording the image, whereas in cephalopods the retina changes shape when stimulated. d. a pupil that shrinks in size in bright light, whereas cephalopods have a pupil that enlarges in bright light. e. retinal synthesized from vitamin A, whereas cephalopods lack retinal.
What is the X-shaped structure that sits just below the brain’s ventral surface and represents the merging of the optic nerves from the two eyes? A) lens B) optic chiasm C) fovea D) iris
please select all correct options In the eye A) contraction of the ciliary muscles decreases the curvature of the lens. B) lateral inhibition by horizontal cells increases visual contrast. C) there are more cones in the fovea of the retina than there are rods. D) the rods take less than three minutes to fully adapt to dim illumination. E) visual acuity is best at the optic disc.
Odor molecule receptors are located on the ________ extending from olfactory receptor cells in the human nose. Multiple Choice a) axon b) cilia c) soma d) synapse e) oligodendrocyte