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the constant flow of electrons in the ETC for aerobic respiration is due to the splitting of water the presence of oxygen the flow of H+ the production pf carbon dioxide Question 20 (1 point) Ssved Which of the following is true regarding leaves from a C3 plant? the greatest concentration of photosynthetic cells is in the bottom of the leaf the greatest density of cells is at the bottom of the leaf the stomata can be regulated to open or close they have the same structure as the C4 leaf Question 21 (1 point) ✓ Ssved Which of the following is not found in all systems that produce ATP using ATP synthase a proton gradient membranes proton pump(s) flow of electrons oxygen use Question 22 (1 point) ✓ Ssved Both the mitochondria and chloroplast used to exist as free living bacteria True False
Are these right? if not please specify the right answers
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Are these right? if not please specify the right answers
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