Bio 2 Q7 MP - Q7 Mastery Packet Name_ MULTIPLE CHOICE....

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Q7 Mastery Packet Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Active transport involves all of the following except 1) A) transport of solute against a concentration gradient. B) pumping of solutes across the membrane. C) slow movement through the lipid bilayer of a membrane. D) a specific transport protein in the membrane. E) hydrolysis of ATP. 2) Which of the following is not a function of the plasma membrane proton pump? 2) A) produces a proton gradient B) equalizes the charge on each side of a membrane C) generates a membrane potential D) hydrolyzes ATP E) stores potential energy on one side of a membrane 3) Which of the following is a structure that might suggest that plants are a single unit rather than many individual cells? 3) A) root hairs B) apoplast C) plasmodesmata D) mycorrhizae E) stomata 4) All of the following statements about xylem are correct except: 4) A) Xylem conducts material upward. B) Xylem transports mainly sugars and amino acids. C) Xylem has a lower water potential than the soil does. D) Xylem conduction occurs within dead cells. E) No energy input from the plant is required for xylem transport. 5) In plant roots, the Casparian strip is correctly described by which of the following? 5) A) It is located in the walls between endodermal cells and cortex cells. B) It provides increased surface area for the absorption of mineral nutrients. C) It provides energy for the active transport of minerals into the stele from the cortex. D) It ensures that all minerals are absorbed from the soil in equal amounts. E) It ensures that all water and dissolved substances must pass through a cell before entering the stele. 6) Most of the water within xylem vessels moves toward the top of a tree as a result of 6) A) evaporation of water through stoma. B) osmosis in the root. C) the force of root pressure. D) atmospheric pressure on roots. E) active transport of ions into the stele. 7) Transpiration in plants requires all of the following except 7) A) active transport through xylem cells. B) cohesion between water molecules. C) adhesion of water molecules to cellulose. D) transport through tracheids. E) evaporation of water molecules. 1
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8) Guard cells do which of the following? 8) A) accumulate K + ions and close the stomates B) guard against mineral loss through the stomates C) contain chloroplasts that import K + ions directly into the cells D) protect the endodermis E) help balance the photosynthesis-transpiration compromise 9) Photosynthesis begins to decline when leaves wilt because 9) A) there is insufficient water for photolysis during light reactions. B) stomata close, preventing CO
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Bio 2 Q7 MP - Q7 Mastery Packet Name_ MULTIPLE CHOICE....

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