1. This exercise is based on Figure 5.20B: The Role of Microfilaments in Cell Movement-Showing_Cause and Effect in Biology. Review the information below arih ir t:· that iuiiows. To investigate the relationship between a biological activity and the proposed cause of the activity, biologists often use inhibitors that are specific for the cause in living cells or organisms. Cytochalasin B, an inhibitor of microfilaments, was applied to white blood cells that are usually observed by microscopy to move. In separate experiments, three other inhibitors were used: colchicine, which inhibits microtubules; dinitrophenol, which inhibits ATP production (energy); and puromycin, which inhibits new protein synthesis. The results are shown in the table. Explain the reasoning and results of each experiment. What can you conclude about white blood cells movements and the cytoskeleton? Cell movement (% cells moving) Condition No inhibitor 96 Cytochalasin B Colchicine 92 Dinitrophenol Puromycin 95

1. This exercise is based on Figure 5.20B: The Role of Microfilaments in Cell Movement-Showing_Cause and Effect in Biology. Review the information below arih ir t:· that iuiiows. To investigate the relationship between a biological activity and the proposed cause of the activity, biologists often use inhibitors that are specific for the cause in living cells or organisms. Cytochalasin B, an inhibitor of microfilaments, was applied to white blood cells that are usually observed by microscopy to move. In separate experiments, three other inhibitors were used: colchicine, which inhibits microtubules; dinitrophenol, which inhibits ATP production (energy); and puromycin, which inhibits new protein synthesis. The results are shown in the table. Explain the reasoning and results of each experiment. What can you conclude about white blood cells movements and the cytoskeleton? Cell movement (% cells moving) Condition No inhibitor 96 Cytochalasin B Colchicine 92 Dinitrophenol Puromycin 95

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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