Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Textbook Question
Chapter 43.7, Problem 2C
What happens when light strikes rhodopsin? (Include a description of the signal transduction pathway in your answer.)
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Chapter 43 Solutions
Biology (MindTap Course List)
Ch. 43.1 - How Sensory Systems Work LEARNING OBJECTIVES 1...Ch. 43.1 - Prob. 2LOCh. 43.1 - Prob. 1CCh. 43.1 - PREDICT Imagine that you are hiking along a bay...Ch. 43.1 - Prob. 3CCh. 43.1 - Identify five kinds of sensory receptors based on...Ch. 43.2 - Prob. 3LOCh. 43.2 - What are the functions of thermoreceptors in...Ch. 43.3 - Prob. 4LOCh. 43.3 - Prob. 1C
Ch. 43.3 - Prob. 2CCh. 43.4 - Describe the functions of nociceptors and identify...Ch. 43.4 - Prob. 1CCh. 43.4 - Prob. 2CCh. 43.5 - Prob. 6LOCh. 43.5 - Compare the structure and function of the saccule...Ch. 43.5 - Prob. 8LOCh. 43.5 - Prob. 1CCh. 43.5 - Prob. 2CCh. 43.5 - List the sequence of events involved in hearing.Ch. 43.6 - Prob. 9LOCh. 43.6 - Prob. 1CCh. 43.7 - Prob. 10LOCh. 43.7 - Prob. 11LOCh. 43.7 - Prob. 12LOCh. 43.7 - Prob. 1CCh. 43.7 - What happens when light strikes rhodopsin?...Ch. 43.7 - What is the sequence of neural signaling in the...Ch. 43.7 - What is meant by the statement Vision happens...Ch. 43 - Test your Understanding Know and Comprehend 1. A...Ch. 43 - Prob. 2TYUCh. 43 - Prob. 3TYUCh. 43 - Prob. 4TYUCh. 43 - Prob. 5TYUCh. 43 - Prob. 6TYUCh. 43 - Prob. 7TYUCh. 43 - Prob. 8TYUCh. 43 - Prob. 9TYUCh. 43 - Prob. 10TYUCh. 43 - Prob. 11TYUCh. 43 - SCIENCE, TECHNOLOGY, AND SOCIETY Cochlear implants...
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- When light hits a retinal molecule bound to the rhodopsin, the retinal molecule changes its conformation, going from a cis- configuration to an all-trans configuration (see figure below). This forces the rhodopsin receptor to also undergo a change in its conformation and become activated. 11-cis isomer ** Light Retinal is therefore a key player that triggers a series of activation in phototransduction (see figure below). Phototransduction in photoreceptor cells 1000000000000000 Disc membrane 100000000000000 Disc lumen Light Rhodopsin GDP All-trans isomer J Transducin Photoreceptor cytosol GTP GTP GTP PDE CGMP CGMP CGMP inhibition PDE6i GMP GMP GMP Extracellular environment Plasma membrane 1. Light hits the retinal molecule and changes into an all-trans configuration 2. This change in the retinal conformation activates the rhodopsin photoreceptor 3. The rhodopsin photoreceptor then activates a specific heterotrimeric G protein called transducin. 4. The transducin then activates a…arrow_forwardFor you to see the words on your compute, quite a few different types of neurons are required. what types of neurons are involved in signal transmission for you to see the words? Describe all the neural structures fro required for seeing.arrow_forwardYou recently read about Justin Bieber's unfortunate run-ins with glass doors and walls. Since then, you learned about how neurons are the unique cell of the nervous system and that signals are sent via action potential along those cells. You have further learned about how signals "jump" from one neuron to the next, allowing for your nervous system to function every single day. Explain, using language from your learning of signal transduction and the nervous system, just what Justin Bieber's neurons should have been doing to prevent his unfortunate accidents. In other words, describe how are signals received, sent, and passed along in the nervous system (a system primarily responsible for preventing people from walking into doors and walls). You may enhance your answer by comparing the effects of drug use with the inability to avoid these accidents. *Hint: half of your response should be about neuron anatomy and action potential and the other half should be about signaling across…arrow_forward
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