cellular respiration.pdf

A it depends mostly on the concentration of inorganic

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A) It depends mostly on the concentration of inorganic phosphate inside the cell. B) It is dependent on the site of attachment of the protein to the plasma membrane.
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C) It depends on the balance in the cell between active kinase and active phosphatase molecules. D) Only A and B are true. E) A, B, and C are true. 86) Glucose diffuses slowly through artificial phospholipid bilayers. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm. Using this information, which transport mechanism is most probably functioning in the intestinal cells? A) simple diffusion B) facilitated diffusion C) active transport pumps D) exocytosis E) phagocytosis 87) When hydrogen ions are pumped from the mitochondrial matrix across the inner membrane and into the intermembrane space, the result is the A) lowering of pH in the mitochondrial matrix. B) reduction of NA. C) formation of ATP. D) restoration of the N/ balance across the membrane. E) creation of a proton gradient. 88) Of the following, which is probably the most common route for membrane flow in the endomembrane system? A) ER chloroplasts mitochondrion cell membrane B) Golgi lysosome ER plasma membrane C) rough ER vesicles Golgi plasma membrane D) nuclear envelope lysosome Golgi plasma membrane E) tonoplast plasma membrane nuclear envelope smooth ER 89) Which of the following incorrectly matches the type of cell, type of protein, and site of the protein's synthesis? A) prokaryote, plasma membrane protein, ribosome bound to plasma membrane B) eukaryote, cytoplasmic protein, free cytoplasmic ribosome C) prokaryote, secreted protein, free cytoplasmic ribosome D) prokaryote, cytoplasmic protein, free cytoplasmic ribosome E) eukaryote, plasma membrane protein, rough ER 90) Which of the following statements about membrane structure and function is false? A) Diffusion of gases is faster in air than across membranes. B) The types of proteins that are exposed on one side of a membrane are nearly identical to those exposed on the other side of the membrane. C) Diffusion, osmosis, and facilitated diffusion do not require any direct energy input from the cell. D) Special membrane proteins can cotransport two solutes by coupling diffusion down a concentration gradient to transport against the concentration gradient. E) Voltage across the membrane depends on an unequal distribution of ions across the plasma membrane. 91) Energy released by the electron transport chain is used to pump ions into which location? A) mitochondrial intermembrane space B) cytosol C) mitochondrial matrix D) mitochondrial outer membrane E) mitochondrial inner membrane 92) Which process in eukaryotic cells will proceed normally whether oxygen () is present or absent?
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