ELIMINATION FSQB

Which of the following compounds is NOT produced during glycolysis?

• Glucose

• Pyruvate

• NADH

• ATP

Glycolysis begins with _________ and ends with __________.

• glucose; pyruvate

• pyruvate; acetyl-CoA

• pyruvate; glucose

• pyruvate; water

After a person has fasted for more than a few days, the brain adapts to using _______ for some of its fuel needs.

• ketones

• glycerol

• fatty acid

• amino acid

Which of the following molecules carry electrons from the citric acid cycle to the electron transfer chain? Select all that apply.

• FADH2

• NADH

• Pyruvate

• Acetyl-CoA

Which of the following is an energy-requiring step of glycolysis?

• A phosphate group is transferred from ATP to glucose to produce glucose-6-phosphate.

• Two phosphate groups are transferred from each intermediate to ADP, forming ATP.

• Electrons and hydrogen ions are transferred to NADH when a phosphate group is added to PGAL.

When muscle tissue is exercising under anaerobic conditions, the production of ______ is important because it ensures a continuous supply of NAD⁺.

• lactate

• glycogen

• pyruvate

• glucose-6-phosphate

In metabolism, glucose is degraded to CO₂ and water. The carbon dioxide is produced in ________.

• the citric acid cycle

• the red blood cells

• glycolysis

• the electron transport chain

During the end reaction of the electron transport chain, oxygen becomes ________.

• reduced to water (H₂O)

• oxidized to carbon dioxide

• NADH

• FADH₂

How many molecules of lactate are produced from one molecule of glucose during metabolism?

• 2

• 4

• 6

• 8

The conversion of pyruvate to acetyl-CoA ________.

• occurs in the mitochondria of the cell and is irreversible

• requires the addition of CO₂

• occurs in the nucleus of the cell

• is needed for red blood cell production