Glycolysis and its Role in Cellular Respiration

What is the primary purpose of glycolysis in cellular respiration?

• To synthesize proteins

• To convert glucose into ATP directly

• To break down glucose into pyruvate

• To produce oxygen for the cell

Which of the following is a product of glycolysis?

• Water

• Pyruvate

• Carbon dioxide

• Lactic acid

Why is aerobic respiration more efficient than anaerobic respiration?

• It occurs faster

• It uses more glucose

• It requires less oxygen

• It produces more ATP

What mnemonic is suggested to remember the substrates of glycolysis?

• Dogs Dig Deep Ditches

• Boys Buy Big Burgers

• Girls Get Fine Food

• Cats Chase Mice

Which enzyme catalyzes the conversion of glucose to glucose 6-phosphate?

• Aldolase

• Pyruvate kinase

• Hexokinase

• Phosphofructokinase

What is the net yield of ATP from glycolysis?

• 4 ATP

• 2 ATP

• 6 ATP

• 8 ATP

Which step in glycolysis is catalyzed by phosphofructokinase?

• Glyceraldehyde 3-phosphate to 1,3-bisphosphoglycerate

• Phosphoenolpyruvate to pyruvate

• Fructose 6-phosphate to fructose 1,6-bisphosphate

• Glucose to glucose 6-phosphate

Where does glycolysis occur within the cell?

• Nucleus

• Mitochondria

• Endoplasmic reticulum

• Cytosol

Which of the following is NOT an irreversible step in glycolysis?

• 1,3-bisphosphoglycerate to 3-phosphoglycerate

• Glucose to glucose 6-phosphate

• Fructose 6-phosphate to fructose 1,6-bisphosphate

• Phosphoenolpyruvate to pyruvate

What is the role of pyruvate kinase in glycolysis?

• It initiates glycolysis

• It converts phosphoenolpyruvate to pyruvate

• It breaks down glucose

• It synthesizes ATP from ADP