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Biology, 10.07.2019 15:50 batmanmarie2004
Ineed with these questions. i've taken this test twice and so i'm leaving out the answers i already chose. these are the ones i've missed and don't know. 5. which statement is true of both active transport and facilitated diffusion? c. both only occur in one direction d. both involve proteins in the cell membrane 7. osmosis involves which of the following processes? a. movement of water across a cell membrane d. moment of water up a concentration gradient 10. the inner membrane of mitochondria consists of many folds. what is the purpose of this membrane? a. increase the surface area to allow more space for atp synthesis d. decrease the surface area so substances can't diffuse in these three i just don't remember what my answer was since it was on friday i think. 11. which of the following is true of eukaryotes but not of prokaryotes? (a. they do not have membrane-bound organelles) b. they are always single-celled d. they must contain a nucleus 12. semipermeable cell membranes are made of phospholipids that form a bilayer. what major benefit does this arrangement of the membrane provide to the cell? a. the cell is able to easily change size and shape b. both surfaces of the membrane are nonnpermeable (c. both surfaces of the membrane can interact with water and other molecules) 13. when a pacific sea horse's body loses water to its environment, which process is responsible? a. active transport b. osmosis (c. endocytosis) in advance
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