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27. The role of the antenna complex in a photosystem is to A. transfer excited electrons to the primary electron acceptor. B. generate glucose. C. generate NADPH. D. capture photons from sunlight. 28. The light-independent reactions of photosynthesis are those that A. convert glucose into energy. B. convert chlorophylls into light energy. C. convert CO, into reduced molecules (sugars). D. convert water into hydrogen and oxygen. 29. One cell sends second messengers to another cell through gap junctions. What type of signaling would this be considered? A. Paracrine B. Direct contact C. Endocrine D. Autocrine

27. The role of the antenna complex in a photosystem is to A. transfer excited electrons to the primary electron acceptor. B. generate glucose. C. generate NADPH. D. capture photons from sunlight. 28. The light-independent reactions of photosynthesis are those that A. convert glucose into energy. B. convert chlorophylls into light energy. C. convert CO, into reduced molecules (sugars). D. convert water into hydrogen and oxygen. 29. One cell sends second messengers to another cell through gap junctions. What type of signaling would this be considered? A. Paracrine B. Direct contact C. Endocrine D. Autocrine

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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27. The role of the antenna complex in a photosystem is to A. transfer excited electrons to the primary electron acceptor. B. generate glucose. C. generate NADPH. D. capture photons from sunlight. 28. The light-independent reactions of photosynthesis are those that A. convert glucose into energy. B. convert chlorophylls into light energy. C. convert CO, into reduced molecules (sugars). D. convert water into hydrogen and oxygen. 29. One cell sends second messengers to another cell through gap junctions. What type of signaling would this be considered? A. Paracrine B. Direct contact C. Endocrine D. Autocrine 30. What property defines most ligands for intracellular receptors? A. They are lipid-soluble B. They are hydrophilic C. They are molecules that can perform significant hydrogen bonding interactions with water D. They are large molecules 31. What type of receptor is not an enzyme, but is directly associated with an enzyme that can hydrolyze GTP? A. Channel-linked receptor B. Enzymatic receptor C. G protein-coupled receptor D. Steroid hormone receptor 32. What is the function of a protein phosphatase? A. To cleave membrane steroids B. To phosphorylate GDP to generate GTP C. To add phosphate groups onto proteins D. To remove phosphate groups from proteins
Transcribed Image Text:27. The role of the antenna complex in a photosystem is to A. transfer excited electrons to the primary electron acceptor. B. generate glucose. C. generate NADPH. D. capture photons from sunlight. 28. The light-independent reactions of photosynthesis are those that A. convert glucose into energy. B. convert chlorophylls into light energy. C. convert CO, into reduced molecules (sugars). D. convert water into hydrogen and oxygen. 29. One cell sends second messengers to another cell through gap junctions. What type of signaling would this be considered? A. Paracrine B. Direct contact C. Endocrine D. Autocrine 30. What property defines most ligands for intracellular receptors? A. They are lipid-soluble B. They are hydrophilic C. They are molecules that can perform significant hydrogen bonding interactions with water D. They are large molecules 31. What type of receptor is not an enzyme, but is directly associated with an enzyme that can hydrolyze GTP? A. Channel-linked receptor B. Enzymatic receptor C. G protein-coupled receptor D. Steroid hormone receptor 32. What is the function of a protein phosphatase? A. To cleave membrane steroids B. To phosphorylate GDP to generate GTP C. To add phosphate groups onto proteins D. To remove phosphate groups from proteins
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