Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
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 (2nd Edition)
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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- G5arrow_forwardPlease 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_forwardWHAT IF? How might increased branching of an axonhelp coordinate responses to signals communicated bythe nervous system?arrow_forward
- Q4.1. The image below shows a neuron's response to a medium-intensity stimulus. Which of the options underneath it correctly shows a signal for a weaker stimulus? Time (ms) 60 Time (ms) Time (ms) 60 Time (ms) Time ms) 60arrow_forwardWhat channels are open at 3 if this was recorded on the axon of a sensory neuron? Check all that apply 1. K+ voltage gated channels 2. K+ leak channels 3. Na+ ligand gated channels 4. Na+ stimulus gated channels 5. Na+ voltage gated channels 6. Ca+ voltage gated channels 7. Cl- ligand gated channelsarrow_forwardPlease help asaparrow_forward
- Which 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_forward
- 1@2arrow_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_forwardWatch 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_forward
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