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Unformatted text preview: Lab 5: Crayfish physiology 1. What gas is taken up during ventilation? ___________oxygen_________ 2. What gas is released during ventilation? ________carbon dioxide____________ 3. What molecule is broken down to generate energy? _____glucose_______ 4. During ventilation, gases enter and exit the circulatory system by the process of ______diffusion________. 5. The amount of water pumped by a crayfish past its gills is proportional to what? ______ventilation volume/volume of h2o pumped______________ 6. Why is nitrogen gas bubbled through the water in this laboratory exerise ? ______________to create a low oxygen level_____________________________________________________________ 7. In what direction do crayfish pump water? __posterior to anterior__________________ 8. In the crayfish physiology lab, you will be taking oxygen concentration data readings every...
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