81. Ubiquinone is also known as coenzyme Q. True False 82. ATP synthase is a goo

Question

81. Ubiquinone is also known as coenzyme Q.
True False

82. ATP synthase is a good example of a molecular machine that is composed of various protein subunits and that has moving parts.
True False

83. The proton motive force is key to chemiosis because the H+ electrochemical gradient is lower in the intermembrane space than inside the matrix.
True False

84. If oxygen is present, pyruvate will be converted to acetyl CoA in the mitochondrial matrix.
True False

85. When a molecule of NAD+ (nicontinamide adenine dinucleotide) gains a hydrogen atom, the molecule becomes reduced.
True False

86. Proteins and fats may be used as energy sources to drive aerobic respiration.
True False

87. During the energy investment phase of glycolysis there is a decrease of free energy that allows later reactions to be exergonic.
True False

88. The ability of bread to rise is mainly a function of the CO2 produced during oxidative phosphorylation rather than that produced from fermentation.
True False

89. The aerobic breakdown of glucose yields 34 to 38 ATP, while the anaerobic breakdown of glucose yields 20 ATP.
True False

90. Secondary metabolites like caffeine are produced mainly from plant sources.
True False

Explanation / Answer

81. True

82.True

83. False

84. True

85.True

86.True

87. True

88. False

89. True

90. True

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