Chapter Questions
Which of these factors does not affect enzyme activity?a) Temperatureb) Inhibitorsc) Coenzymesd) Humiditye) $\mathrm{pH}$
Which of the following statements is false? Enzymesa) bind to substrates.b) lower the energy of activation.c) convert coenzymes to products.d) speed up biochemical reactions.e) can be named after the kinds of reaction they catalyze.
Based on the name, NADH dehydrogenase isa) a vitamin that oxidizes NADH.b) a vitamin that reduces NADH.c) a vitamin that produces NADH.d) an enzyme that oxidizes NADH.e) an enzyme that reduces NADH.
What is the end product of glycolysis?a) Glucoseb) Citratec) Oxaloacetated) $\alpha$ -Ketoglutaratee) Pyruvate
The central metabolic pathways area) glycolysis and the TCA cycle only.b) glycolysis, the TCA cycle, and the pentose phosphate pathway.c) glycolysis only.d) glycolysis and the pentose phosphate pathway only.e) the TCA cycle only.
Which of these pathways gives a cell the potential to produce the most ATP?a) TCA cycleb) Pentose phosphate pathwayc) Lactic acid fermentationd) Glycolysis
In fermentation, the terminal electron acceptor isa) oxygen $\left(\mathrm{O}_{2}\right)$b) hydrogen (H).c) carbon dioxide $\left(\mathrm{CO}_{2}\right)$d) an organic compound.
In the process of oxidative phosphorylation, the energy of a proton motive force is used to generatea) NADH.b) ADP.c) ethanol.d) ATP.e) glucose.
If a bacterium lost the ability to produce FADH $_{2}$, which of the following must stop?a) biosynthesisb) glycolysisc) pentose phosphate pathwayd) TCA cyclee) fermentation
Degradation of fats as an energy source involves all of the following excepta) $\beta-$ oxidation.b) acetyl-CoA.c) glycerol.d) lipase.e) transamination.