Chapter 5

Which of the following are products of the Kreb's Cycle

• NADPH

• NADH

• ATP

• FADH2

• Water

feedback inhibition

• speed up reactions

• use products to slow a reaction

• need apoenzymes

• use glucose as a coenzyme

Allosteric inhibitors

• need coenzymes

• are located in the active site

• are located away from the active site

• slow down reactions

Which of the following compounds is not an enzyme?

• Dehydrogenase

• Cellulase

• Coenzyme A

• β-galactosidase

Which of the following is not true about anaerobic respiration?

• It involves glycolysis only

• It involves the Krebs cycle.

• It involves the reduction of nitrate.

• It generates ATP.

Fatty acids are catabolized in

• the krebs cycle

• the electron transport chain

• glycolysis

• the pentose phosphate pathway

Which of the following is the best definition of oxidative phosphorylation?

• Electrons are passed through a series of carriers to O2.

• The energy released in the reduction of carrier molecules is used to generate ATP.

• The energy released as carrier molecules are oxidized is used to generate ATP.

• The transfer of a high-energy phospate group to ADP.

Which of the following is not an end-product of fermentation?

• Lactic acid

• Ethyl alcohol

• Pyruvic acid

• Glycerol

In noncyclic photophosphorylation, O2 is produced from

• CO2

• H20

• C6 H12O6

• Sunlight

Which of the following is the best definition of fermentation?

• The reduction of glucose to pyruvic acid.

• The production of energy by substrate-level phosphorylation

• The oxidation of glucose with organic molecules serving as electron acceptors.

• The complete catabolism of glucose to CO 2 and H 2O.