Question

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12. During cellular respiration in eukaryotic cells, the production of ATP during chemiosmosis captures energy released t as electrons flow from NADH through the mitochondrial electron transport chain. B. by the transfer of electrons from the final electron carrier to oxygen. as protons flow down their electrochemical gradient through ATP synthase across the inner mitochondrial membrane. D.by substrate-level phosphorylation. e Does not require energy tbyilo nemud 13. Which of the following is NOT an adaptation cells can use to ensure proper surface area to volume ratio: presence of microvilli B large central vacuole C change of cell shape D. presence of flagella 14. A cell with higher surface area/volume ratio will be able to A. Exchange material with the environment at a faster rate B. Exchange material with the environment at a slower rate C. surface area/volume ratio has no effect on the exchange rate D. Not enough information is provided to answer the question 15. A patient has had a serious accident and lost a lot of blood. In an attempt to replenish body fluids, distilled water-equal to the volume of blood lost-is transferred directly into one of his veins. What will be the'most probable result of this transfusion? A It will have no unfavorable effect as long as the water is free of viruses and bacteria. B The patient's red blood cells will shrivel up because the blood fluid has become hypotonic compared to the cells. C- The patient's red blood cells will swell because the blood fluid has become hypotonic compared to i bbs the cells. do no b. The patient's red blood cells will shrivel up because the blood fluid has become hypertonic compared to the cells. didni ar T The patient's red blood cells will burst because the blood fluid has become hypertonic compared to the cells.A

Answer 1

Answer:

12). C). As protons flow down their electrochemical gradient through ATP synthase across the inner mitochondrial membrane

Explanation:

Chemiosmosis: An electron transport chain assembled in a membrane translocates protons across the membrane as electrons are passed through a series of carriers that are progressively more electronegative. Built into the same membrane is an ATP synthase complex that couples the diffusion of hydrogen ions down their gradient to the phosphorylation of ADP and produces ATP

13). D). Presence of flagella

14). A). Exchange material with the environment at a faster rate

Explanation:

A higher surface area will permit larger exchange of substances to take place. As the cell increases in size, the volume of the cell also increases and so does the surface area

15). C). The patient’s red blood cells will swell because the blood fluid has become hypotonic compared to the cells.