Chapter 12.2 Respiration

Substrate-level phosphorylation is used to synthesise ATP in which steps of aerobic respiration?

• oxidative phosphorylation and chemiosis

• glycolysis and link reaction

• link reaction and Krebs cycle

• glycolysis and Krebs cycle

Which type of phosphorylation synthesises ATP using an enzyme that transfer a phosphate group to ADP?

• oxidative phosphorylation

• adaptative phosphorylation

• substrate-level phosphorylation

• product-level phosphorylation

Where does the Krebs cycle occur?

• cytoplasm

• the matrix of the mitochondrion

• the inner membrane of the mitochondrion

• stroma

Name the molecule that enters the Krebs cyce

• pyruvate

• coenzyme A

• acetyl acid

• acetyl-coA

For one molecule of pyruvate, the link reaction and Krebs cycle result in the net production of which of the following set of energy-containing products?

• 4NADH, 1FADH2, 1ATP

• 3NADH, 1 FADH2, 1 ATP

• 4NADH, 1 FADH2, 3CO2

• 3NADH, 1FADH2, coenzyme A

What are the products of link reaction?

• acetyl-coA, O2, ATP

• Acetyl and CO2

• acetyl-coA, NADH, and CO2

• acetyl-coA, NAD+, ATP and CO2

Which product of the Krebs cycle is also used as a reactant in the Krebs cycle?

• citrate

• ATP

• acetyl-coA

• oxaloacetate

Taking one molecule of glucose through glycolysis, link reaction and the Krebs cycle, it generates in net:

• 6CO2, 8NADH, 2FADH2, 4ATP

• 6CO2, 8NADH, 1FADH2, 2ATP

• 6CO2, 10NADH, 2FADH2, 4ATP

• 6CO2, 10NADH, 2FADH2, 2ATP