Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 38.6, Problem 2CC
Summary Introduction
To explain:
What if our brain receives more action potentials when our eyes are exposed to light even though our photoreceptors release more neurotransmitter in the dark.
Introduction:
In humans, the vision starts when the photon of the light enters the eye and via pupil and strike the cone and rod cells. The energy of photon shifts the
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Chapter 38 Solutions
Campbell Biology in Focus
Ch. 38.1 - Which division of the autonomic nervous system...Ch. 38.1 - Prob. 2CCCh. 38.2 - When you wave your right hand, what part of your...Ch. 38.2 - People who are inebriated have difficulty touching...Ch. 38.2 - WHAT IF? Two groups of individuals have CNS...Ch. 38.3 - Prob. 1CCCh. 38.3 - Prob. 2CCCh. 38.3 - WHAT IF? If a woman with a severed corpus callosum...Ch. 38.4 - Which one of the five categories of sensory...Ch. 38.4 - Prob. 2CC
Ch. 38.4 - WHAT IF? If you stimulated a sensory neuron of an...Ch. 38.5 - Prob. 1CCCh. 38.5 - Prob. 2CCCh. 38.5 - Prob. 3CCCh. 38.5 - Prob. 4CCCh. 38.6 - Contrast the light-detecting organs of planarians...Ch. 38.6 - Prob. 2CCCh. 38.6 - MAKE CONNECTIONS Compare the function of retinal...Ch. 38 - Patients with damage to Wernickes area have...Ch. 38 - The cerebral cortex does not play a major role in...Ch. 38 - The middle ear converts A. air pressure waves to...Ch. 38 - Prob. 4TYUCh. 38 - Prob. 5TYUCh. 38 - Prob. 6TYUCh. 38 - Prob. 7TYUCh. 38 - SCIENTIFIC INQUIRY Consider an individual who had...Ch. 38 - Prob. 9TYUCh. 38 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 38 - Prob. 11TYU
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- channels. Sound waves are most likely to open O a) ligand gated O b) mechanosensitive c) ion gatedarrow_forwardPLEASE ASAP> THANKU 24. In relation to other retinal ganglion cells, the M ganglion cells that make up the magnocellular pathway have A. a larger receptive field and a faster-conducting axon. B. a smaller receptive field, a slower-conducting axon, and transient responses. C. a faster-conducting axon, lower spatial resolution, and better color sensitivity. D. finer spatial resolution and better color sensitivity. E. All of the above are true F. Both A and C are true.arrow_forwardG5arrow_forward
- Please ASAP. Thanku. What is a receptor (generator) potential? a. A potential that is generated by the sensory stimulus b. A change in the membrane potential of the receptor cell caused by a physical stimulus c. Compound nerve action potential d. A change in the membrane potential of the ascending axonarrow_forwardPlease asaparrow_forwardWhich of the following events does not occur during light absorption in the vertebrate eye? The retinal component of rhodopsin changes from cis to trans form. Rhodopsin, a G-proteincoupled receptor, triggers a signaltransduction pathway to close Na+ channels in the plasmamembrane. The light stimulus passes from rods and cones to bipolar cellsand horizontal cells and then to ganglion cells, whose axonscompose the optic nerve. As light absorption increases, the rhodopsin response causesan increase in the release of neurotransmitters. When integrating information across the retina, horizontalcells connect the rods and cones, and amacrine cells join with the bipolar cells and ganglion cells.arrow_forward
- ? B) Describe 5. A) What accounts for mini excitatory post-synaptic potentials (mini EPSPs; be specific; | how Fatt and Katz were able to reduce the amplitude of evoked EPSPs to the same range as mini EPSPS B. A.arrow_forwardPlease answer fast Provide a thorough anatomical description of how the nervous system transforms light energy in the environment into a neural signal that reaches the primary visual cortex (V1, do not go beyond V1). Define the concept of “receptive field” and describe how the receptive fields (or response properties) of the different types of neurons change as information is processed from the retina through primary (V1) visual cortex (be sure to write about retinal ganglion cells in your answer).arrow_forwardWhich of the following situations is associated with movement and position in the human body? a. Statoliths in statocysts bend sensory hairs and trigger actionpotentials. b. If sensory hairs in the utricle are oriented horizontally andthose in the saccule are oriented vertically, the person is lyingdown. c. When the head rotates, the endolymph in the semicircularcanal pulls the cupula with it to activate sensory hair cells. d. Displacement of the utricle and saccule generates actionpotentials. e. If the body is spinning at a constant rate and direction, thecupula is displaced and action potentials are initiated.arrow_forward
- Watch this video (http://openstaxcollege.org/l/l_3-D1) to learn more about how the brain perceives 3-D motion. Similar to how retinal disparity offers 3-D moviegoers a way to extract 3-D information from the two-dimensional visual field projected onto the retina, the brain can extract information about movement in space by comparing what the two eyes see. If movement of a visual stimulus is leftward in one eye and rightward in the opposite eye, the brain interprets this as movement toward (or away) from the face along the midline. If both eyes see an object moving in the same direction, but at different rates, what would that mean for spatial movement?arrow_forwardPlease ASAp. Thanku. What is the tonotopic anatomical organization of cells in the auditory brain? a.The anatomical organization of cells according to the temporal pattern of sounds b.The anatomical organization of cells according to the loudness of sounds c.The anatomical organization of cells direction from which a sound comes d.Anatomically organization of cells according to the frequency to which cells respond bestarrow_forwardPlease ASAP. Thank you. 1. The insular lobe is mainly involved in a. Gustation and visceral sensory-motor functions b. The vomeronasal olfactory system c. Sharpening of frequencies tuning in the auditory system d. Control of motor systems 2. What is a receptor (generator) potential? a. A potential that is generated by the sensory stimulus b. A change in the membrane potential of the receptor cell caused by a physical stimulus c. Compound nerve action potential d. A change in the membrane potential of the ascending axonarrow_forward
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