63: The eye (physiology) Quizellenjmchenry2020-03-06T13:16:26-05:00 Please sign up for the course before taking this quiz. Which cell part makes a microtubule highway through a narrow passage in the rod and cone cells?1 ribosomes mitochondria Golgi bodies centrioles nucleus Pigmented epithelial cells regenerate when damaged, just like skin cells.1 True False Which of these parts bends light?1 retina cornea optic nerve ciliary body iris Which amino acid to we find functioning as a neurotransmitter at the ends of rods and cones?1 glutathione lysine glycine glutamate You blind spot is right over your fovea.1 True False What holds the rhodopsin molecule in place?1 cytoskeleton microtubules phospholipid membrane retinal molecules Golgi bodies When it is dark, the rods are switched on and are releasing neurotransmitters.1 True False Which of these is NOT a job that the pigmented epithelial cells do?1 Nourish the rod and cone cells. Prune the tips off the rod and cone cells and recycle them. Provide a connection between rods and cones so they can cooperate. Absorbs extra photons of light. Form a protective barrier so that germs stay out. Which one of these allows us to see at night?1 rods cones You have more rods than cones.1 True False What happens when a photon of light hits the retinal molecule?1 It regenerates. It loses an electron. It falls out of the rhodopsin molecule. It changes shape and becomes straight. It starts an action potential. Which is larger, the macula or the fovea?1 fovea macula To view things farther away, the lens must become flatter.1 True False Which is smaller, rhodopsin or retinal?1 retinal rhodopsin Which of these parts holds the lens in place?1 canals of Schlemm iris zonules of Zinn cornea aqueous humor Which of these let the rods and cones communicate with each other?1 ganglion cells bipolar cells horizontal cells amacrine cells Which of these is a color that cones don’t respond to?1 red yellow green blue The retina sees images upside down.1 True False Which of these leads right into the optic nerve?1 horizontal cell ganglion cell bipolar cell amacrine cell Where will you find the highest number of cone cells?1 They are evenly spaced all over the retina. In the macula At the outer edges of the retina 62: The eye (anatomy) 64: The Brain (part 1) Back to: 63: The eye (physiology)
Please sign up for the course before taking this quiz. Which cell part makes a microtubule highway through a narrow passage in the rod and cone cells?1 ribosomes mitochondria Golgi bodies centrioles nucleus Pigmented epithelial cells regenerate when damaged, just like skin cells.1 True False Which of these parts bends light?1 retina cornea optic nerve ciliary body iris Which amino acid to we find functioning as a neurotransmitter at the ends of rods and cones?1 glutathione lysine glycine glutamate You blind spot is right over your fovea.1 True False What holds the rhodopsin molecule in place?1 cytoskeleton microtubules phospholipid membrane retinal molecules Golgi bodies When it is dark, the rods are switched on and are releasing neurotransmitters.1 True False Which of these is NOT a job that the pigmented epithelial cells do?1 Nourish the rod and cone cells. Prune the tips off the rod and cone cells and recycle them. Provide a connection between rods and cones so they can cooperate. Absorbs extra photons of light. Form a protective barrier so that germs stay out. Which one of these allows us to see at night?1 rods cones You have more rods than cones.1 True False What happens when a photon of light hits the retinal molecule?1 It regenerates. It loses an electron. It falls out of the rhodopsin molecule. It changes shape and becomes straight. It starts an action potential. Which is larger, the macula or the fovea?1 fovea macula To view things farther away, the lens must become flatter.1 True False Which is smaller, rhodopsin or retinal?1 retinal rhodopsin Which of these parts holds the lens in place?1 canals of Schlemm iris zonules of Zinn cornea aqueous humor Which of these let the rods and cones communicate with each other?1 ganglion cells bipolar cells horizontal cells amacrine cells Which of these is a color that cones don’t respond to?1 red yellow green blue The retina sees images upside down.1 True False Which of these leads right into the optic nerve?1 horizontal cell ganglion cell bipolar cell amacrine cell Where will you find the highest number of cone cells?1 They are evenly spaced all over the retina. In the macula At the outer edges of the retina
