Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 50, Problem 10TYK
Which of the following structures is incorrectly paired with its function?
- a. cones—respond to different light wavelengths, producing color vision
- b. horizontal cells—produce lateral inhibition of receptor cells and bipolar cells
- c. bipolar cells—relay impulses between rods or cones and ganglion cells
- d. ganglion cells—synapse with the optic nerve at the optic disk or blind spot
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Students have asked these similar questions
Which of the following is TRUE about cone cells?
a. The three types of cones that humans have are called Q-cones, R-cones, and S-cones
b. There are no cones at all in areas important for peripheral vision
c. There are more cones than rods in areas of the retina that are important for peripheral vision
d. There are no cones where the optic nerve leaves the eyeball
Which one of the following statements about photoreception is true?
a. Light detection is initiated by the absorbance of light (a photon) by a photopigment molecule.
b. Light detection is synonomous with vision.
c. Light detection is always initiated in a rod photoreceptor located in the retina.
d. Only light in the visible range (between 400 and 700 nm wavelength) can be detected by animals.
e. None of the above answer choices (neither A, nor B, nor C, nor D) is true.
Which of the following statements about the contributions of rods and cones to vision is TRUE?
A.
The three types of cones (long, medium, short) are represented at roughly equal numbers
B.
Rods respond to light at ultra-violet wavelengths (>600nm)
C.
The relative density of cones is roughly even throughout the retina
D.
The greater sensitivity of rods in low light is explained by their larger number
E.
Several rods converge on a single bipolar cell
Chapter 50 Solutions
Study Guide for Campbell Biology
Ch. 50 - List and describe the four functions common to all...Ch. 50 - Prob. 2IQCh. 50 - Label the parts in the following diagram of the...Ch. 50 - Label the parts of the human eye in the following...Ch. 50 - The receptive field of a ganglion cell includes...Ch. 50 - Prob. 6IQCh. 50 - Identify the components in the following diagram...Ch. 50 - a. Identify the three distinct types of skeletal...Ch. 50 - List an advantage and a disadvantage of each of...Ch. 50 - a. Which mode of locomotion is the most energy...
Ch. 50 - Prob. 1SYKCh. 50 - Prob. 2SYKCh. 50 - Prob. 3SYKCh. 50 - Prob. 1TYKCh. 50 - Prob. 2TYKCh. 50 - Prob. 3TYKCh. 50 - Prob. 4TYKCh. 50 - Prob. 5TYKCh. 50 - Prob. 6TYKCh. 50 - Prob. 7TYKCh. 50 - Prob. 8TYKCh. 50 - The eyes of individuals with achromatopsia contain...Ch. 50 - Which of the following structures is incorrectly...Ch. 50 - Prob. 11TYKCh. 50 - The absorption of light by rhodopsin in a rod cell...Ch. 50 - Prob. 13TYKCh. 50 - Prob. 14TYKCh. 50 - Prob. 15TYKCh. 50 - Prob. 16TYKCh. 50 - The role of ATP in muscle contraction is to a....Ch. 50 - How does calcium affect muscle contraction? a. It...Ch. 50 - Prob. 19TYKCh. 50 - Prob. 20TYKCh. 50 - Prob. 21TYKCh. 50 - Prob. 22TYKCh. 50 - Prob. 23TYKCh. 50 - Which of the following combinations of animal size...
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- Colour blindness can result from the loss of specific types of cones, or it can occur in individuals having fewer cones of a given type. An individual has 50% less than the normal number of green cone photoreceptors in his or her retina. How would this affect his or her vision? a. This person has night blindness. He or she should start to eat more carrots to replenish the stock of retinal molecules in the retina. b. This person will have difficulty adapting to varying light levels. His or her cone receptors take much longer to adapt in a brightly lit area. c. This person does not have a colour blindness because no green cone photoreceptors are in the retina; only red, yellow, and blue photoreceptors exist. d. This person has a mild green colour blindness. He or she cannot see green colours very clearly and has difficulty distinguishing colours involving green hues.arrow_forwardWhen you exit a dark room into a brightly lit environment, within seconds, you to see a crisp view of your surroundings. However, when you enter a dark room from a brightly lit environment, your eyes might take more than 10 minutes to become used to the new surroundings. Your eyes are waiting for: a. the rods to begin to function b. the cones to begin to function c. the pupils to get smallerarrow_forwardWhen a single photon from a source of light hits the retina in the eye, it triggers a signal that travels along the optic nerve to the occipital lobe of the brain. The interaction of a photon with the photoreceptors in the retina first causes the movement of sodium ions into a sensory neuron. What happens after the movement of sodium ions? Select one: a. Sodium ions move out of a sensory neuron. b. Potassium ions move out of a sensory neuron. c. Sodium ions move into an interneuron. d. Potassium ions move into an interneuron.arrow_forward
- The dissociation of rhodopsin in the rods in response to light causes a.the Na+ channels to become blocked. b.the rods to secrete less neurotransmitter. c.the bipolar cells to become either stimulated or inhibited. d.all of these.arrow_forwardThis image is of the very back of the eye. Light would be coming in from the left towards the right side. WHich label indicates the photo receptor rod and cone cells? A. middle layer, red and green B. rods and cones are not in this image, they are much closer to the front of the eye ball C. far right side, purple and yellow D. far left side, grayarrow_forwardTransduction of a stimulus usually causes depolarization of a sensory receptor. a.)In most receptors, what is the chemical basis for this depolarization (that is, what is the specific mechanism for the change)?b.)How is a photoreceptor different from other receptors in terms of its membrane potential? c.) Explain how photoreceptors in the light can lead to excitation of some bipolar cells and inhibition of othersarrow_forward
- 1.) The rods absorb light and initiate a neural impulse to the brain when. A.) rhodopsin splits into retinal and opsin thereby stopping the release of an inhibitory neurotransmitter B.) retinal and opsin combine into rhodopsin thereby releasing a stimulatory neurotransmitter C.) iodopsin splits into photopsin and retinal thereby stopping the release of an inhibitory neurotransmitter D.) retinal and photopsin combine into iodopsin thereby releasing a stimulatory neurotransmitter 2.) After a neuronal membrane has become depolarized its resting potential is reestablished when A.) Na^ + diffuse into the neural fibre B.) Na^ + diffuse out the neural fibre. C.) K^ + diffuse into the neural fibre D.) K^ + diffuse out the neural fibre 3.) The middle car chamber is an airfilled in the head"which is adapted to allow free movement of the tympanum as it vibrates. Unless the pressure in the chamber…arrow_forwardWhen light hits the center of an ON-center receptive field, which of the following processes occur: a. Photoreceptors release more glutamate; bipolar cells release more glutamate; retinal ganglion cells decrease rate of APs. b. Photoreceptors release less glutamate; bipolar cells release less glutamate; retinal ganglion cells decrease rate of APs. c. Photoreceptors release less glutamate; bipolar cells release more glutamate; retinal ganglion cells increase rate of APs. d. Photoreceptors release more glutamate; bipolar cells release more glutamate; ganglion cells increase rate of APs.arrow_forwardWhen you are stalking your friend's social media via a smartphone.a. In your opinion, which receptor organs and cells function to process light stimuli so that they can be transmitted to neurons to become an electrical signal. Explain your answer!b. Describe in detail how the light transduction process pathway to the eye, so that it can see an information from your smartphone!arrow_forward
- In the dark, Question options: A the photoreceptor does nothing, therefore the bipolar cells are inhibited. B the photoreceptor depolarizes and releases glutamate onto bipolar cells, stimulating them. C the photoreceptor hyperpolarizes and stops releasing glutamate onto bipolar cells, which in turn stimulate the ganglion cells. D the photoreceptor depolarizes and releases glutamate onto bipolar cells, inhibiting them.arrow_forwardWhich statement about the events of photoreception is false? a) as a rod cell hyperpolarizes, its release of neurotransmitter increases b) there is more Na+ entry into a rod cell in the dark than in the light c) bipolar cells release more neurotransmitter in the light than in the dark d) as a bipolar cell depolarizes, its release of neurotransmitter increases e) when a rod cell releases neurotransmitter the bipolar cell it synapses with hyperpolarizesarrow_forwardWhen a single photon from a source of light hits the retina in the eye, it triggers a signal that travels along the optic nerve to the occipital lobe of the brain. The interaction of a photon with the photoreceptors in the retina first causes the movement of sodium ions into a sensory neuron. What happens after the movement of sodium ions? a. Sodium ions move out of a sensory neuron. b. Potassium ions move out of a sensory neuron. c. Sodium ions move into an interneuron. d. Potassium ions move into an interneuron.arrow_forward
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