Understanding Cellular Respiration

What is the primary molecule used in cellular respiration?

• Protein

• Glucose

• NADH

• Fatty acid

Which stage of cellular respiration is anaerobic?

• Electron transport system

• Glycolysis

• Intermediate stage

• Citric acid cycle

How many ATP molecules are net gained from glycolysis?

• 32

• 38

• 4

• 2

Where does the citric acid cycle occur?

• Ribosome

• Mitochondria

• Cytosol

• Endoplasmic reticulum

What is the end product of the electron transport chain?

• ATP

• Glucose

• Lactate

• Pyruvate

Which molecules are primarily not used for energy in cellular respiration?

• Glucose

• Amino acids

• Fatty acids

• NADH

How can amino acids enter the cellular respiration pathway?

• By converting to glucose

• By removing the carboxyl group

• By adding a phosphate group

• By removing the amino group

What happens to the glycerol unit of triglycerides in cellular respiration?

• It directly enters the electron transport chain

• It is excreted as waste

• It enters the pathway during glycolysis

• It is stored as fat