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Biology 3 Lecture FALL 2017 11) Which statement about enzymes is false? A) Enzymes may be damaged by high temperature. B) Enzymes raise the activation energy needed to start a reaction C) Enzymes are organic catalysts D) Enzymes are composed mostly of protein. E) Enzymes are not changed during reactions 12) Which enzyme characteristic best explains the fact animals have enzymes that break apart starch molecules but not cellulose despite the fact that both are made up of glucose subunits? B) enzymes are not permanently changed by the reactions they promote A) all enzymes are proteins C) Enzyme activity is regulatedD) enzymes usually speed up chemical reactions E) enzymes are highly specific 13) The most common energy carrier molecule in living organisms is A) ATP B) inorganic phosphate C) DNA D) glucose E) lipids 14) ATP is an energy carrier. Where is the energy actually stored? A) in the bonds between phosphate groupsB ttached to the phosphate group C) between the sugar and the phosphate D) attached to the nucleotide E) inside the phosphates 15) Which of the following equations best summarizes photosynthesis? A) carbon dioxide + oxygen â glucose + water + energy B) glucose+ oxygencarbon dioxide + water+ energy C) energy + oxygen + water glucose + carbon dioxide D) carbon dioxide + water + oxygen â glucose + energy energy + carbon dioxide + water â glucose + oxygen The light reactions of photosynthesis convert energy into_ energy A) ATP . NADPH D) proton gradient. ..chemical B) solar . . chemical E) chemical. .electrical C) electrical.. solar 17) What is responsible for the yellow-orange coloration of leaves in the fall? 18) The light reactions of photosynthesis take place 19) The reactions that produce sugar during photosynthesis take place in the 20) During cellular respiration, most of the energy contained within the bonds of food molecules is captures in: A) chlorophyll a B) RuBP C) phycoerythrin D) carotenoids A) plasma membrane B)on the cristae C)In the thylakoid A) thylakoid B) stroma C) cytoplasm E) chlorophyll b D) in the cytosol E) in the stroma D) mitochondria grana hondr) grana A) the conversion of the chemical energy of food to the potential energy of ATP. C) the Krebs cycle and electron transport chain E) None of the above. Energy is lost, not gained, during cellular respiration. B) digestion. D) glycolysis. 21) Which of these equations describes aerobic cellular respiration? A) glucose â lactic acid + energy B) glucose+ oxygencarbon dioxide + water + energy C) glucose + lactose â galactose + water D) energy + carbon dioxide + water â glucose + oxygen + water E) glucose â ethyl alcohol + carbon dioxide + energy 22) Which of the following energy-generating processes is the only one that occurs in all living organisms A) photophosphorylation B) C) the Krebs cycle D) glycolysis E) None of the above e. There are no energy-generating processes that occur in all living organisms.
Biology 3 Lecture FALL 2017 11) Which statement about enzymes is false? A) Enzymes may be damaged by high temperature. B) Enzymes raise the activation energy needed to start a reaction C) Enzymes are organic catalysts D) Enzymes are composed mostly of protein. E) Enzymes are not changed during reactions 12) Which enzyme characteristic best explains the fact animals have enzymes that break apart starch molecules but not cellulose despite the fact that both are made up of glucose subunits? B) enzymes are not permanently changed by the reactions they promote A) all enzymes are proteins C) Enzyme activity is regulatedD) enzymes usually speed up chemical reactions E) enzymes are highly specific 13) The most common energy carrier molecule in living organisms is A) ATP B) inorganic phosphate C) DNA D) glucose E) lipids 14) ATP is an energy carrier. Where is the energy actually stored? A) in the bonds between phosphate groupsB ttached to the phosphate group C) between the sugar and the phosphate D) attached to the nucleotide E) inside the phosphates 15) Which of the following equations best summarizes photosynthesis? A) carbon dioxide + oxygen â glucose + water + energy B) glucose+ oxygencarbon dioxide + water+ energy C) energy + oxygen + water glucose + carbon dioxide D) carbon dioxide + water + oxygen â glucose + energy energy + carbon dioxide + water â glucose + oxygen The light reactions of photosynthesis convert energy into_ energy A) ATP . NADPH D) proton gradient. ..chemical B) solar . . chemical E) chemical. .electrical C) electrical.. solar 17) What is responsible for the yellow-orange coloration of leaves in the fall? 18) The light reactions of photosynthesis take place 19) The reactions that produce sugar during photosynthesis take place in the 20) During cellular respiration, most of the energy contained within the bonds of food molecules is captures in: A) chlorophyll a B) RuBP C) phycoerythrin D) carotenoids A) plasma membrane B)on the cristae C)In the thylakoid A) thylakoid B) stroma C) cytoplasm E) chlorophyll b D) in the cytosol E) in the stroma D) mitochondria grana hondr) grana A) the conversion of the chemical energy of food to the potential energy of ATP. C) the Krebs cycle and electron transport chain E) None of the above. Energy is lost, not gained, during cellular respiration. B) digestion. D) glycolysis. 21) Which of these equations describes aerobic cellular respiration? A) glucose â lactic acid + energy B) glucose+ oxygencarbon dioxide + water + energy C) glucose + lactose â galactose + water D) energy + carbon dioxide + water â glucose + oxygen + water E) glucose â ethyl alcohol + carbon dioxide + energy 22) Which of the following energy-generating processes is the only one that occurs in all living organisms A) photophosphorylation B) C) the Krebs cycle D) glycolysis E) None of the above e. There are no energy-generating processes that occur in all living organisms.
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