BIO111 Week 5

What does ATP stand for?

• Adenine triphosphorus

• Adenosine triphosphate

• Adenosine diphosphate

• Adenosine tetraphosphate

Where does glycolysis take place?

(a)  

• Mitochondrial matrix

• Nucleus

• Inner mitochondrial membrane

• Cytoplasm

What is the net yield from glycolysis?

• 4 ATP, 2 NADH, and 2 pyruvate

• 2 ATP, 2 NADH, and 2 pyruvate

• 2 ATP, 2 FADH2, and 2 acetyl CoA

• 2 ATP, 4 NADH, and 2 acetyl CoA

What is the role of NADH in cellular respiration?

• It is a type of nucleic acid used in the Krebs Cycle

• It directly makes ATP by adding a phosphate to ADP

• It is a sugar that is broken down to make ATP

• It transfers electrons to help make more ATP

What is the final electron acceptor in the electron transport chain?

What is produced in the Krebs Cycle?

• 6 ATP, 2 NADH, and 6 FADH2

• 2 ATP, 6 NADH, and 2 FADH2

• 2 ATP, 2 NADH, and 2 FADH2

• 4 ATP, 6 NADH, and 4 FADH2

What happens to pyruvate before entering the Krebs Cycle?

• It is phosphorylated

• It is oxidized to acetyl CoA

• It is directly used in the Krebs Cycle

• It is reduced to ethanol

What is the estimated range of ATP produced per glucose molecule in the electron transport chain and chemiosmosis step?

• 30-38 molecules

• 26-34 molecules

• 15-25 molecules

• 40-50 molecules

What can block a step in the electron transport chain, preventing ATP production?

(a)  

• Glucose

• Carbon dioxide

• Cyanide
• Oxygen

What is the role of ATP synthase?

• It pumps protons across the mitochondrial membrane

• It adds a phosphate to ADP to make ATP

• It transfers electrons to make ATP

• It breaks down glucose to make ATP