Respiration Revision

Draw

Draw ATP

Multiple Select

Which of the following are roles of ATP in cellular activities?

• Active transport

• Protein synthesis

• Muscle contraction

• Respiration

Multiple Choice

Is ATP formation exergonic or endergonic?

• Exergonic

• Endergonic

Open Ended

Why is it an endergonic reaction?

Categorize

Options (6)

Only requires one enzyme

Single step reaction

Energy released in small amounts

Many enzymes needed

Multple steps to the reaction

Releases energy in large amounts

Sort these features into the right column

Feature of ATP

Feature of Glucose

Multiple Choice

Which of the following best describes the difference between substrate level phosphorylation and chemiosmosis in ATP production?

• Substrate level phosphorylation directly transfers a phosphate to ADP, while chemiosmosis uses a proton gradient and ATP synthase.

• Substrate level phosphorylation uses a proton gradient, while chemiosmosis transfers a phosphate directly to ADP.

• Both processes require oxygen to occur.

• Chemiosmosis occurs in the cytoplasm, while substrate level phosphorylation occurs in the mitochondria.

Multiple Choice

What is oxidation?

• Oxidation is the gain of electrons by a substance.
• Oxidation is the loss of electrons from a substance.

Open Ended

List the products of glycolysis

Open Ended

Where in the cell does glycolysis occur?

Multiple Choice

Which enzymes are responsible for removing hydrogen from intermediates in the Krebs cycle, and what is the result of this process?

• Dehydrogenases; oxidizing intermediates and reducing NAD or FAD

• Decarboxylases; removing CO2

• ATP synthase; producing ATP

• Kinases; transferring phosphate groups

Multiple Select

Which of the following statements about lactic acid fermentation in animals are correct?

• It does not produce ATP directly.

• It oxidises NAD so glycolysis can continue.

• It is reversible when oxygen is available.

• It produces ethanol as a byproduct.

Open Ended

During ethanol fermentation in yeast, what is released as a byproduct along with ethanol?

Multiple Choice

Which process occurs in the cytoplasm when oxygen is not available after glycolysis?

• Fermentation

• Krebs Cycle

• Link Reaction

• Oxidative Phosphorylation

Multiple Choice

Which structure within the mitochondrion provides a large internal surface area for the electron transport chain?

• Matrix

• Cristae

• Outer membrane

• Ribosomes

Open Ended

Name two coenzymes used in the link reaction

Multiple Choice

How many ATP are made per glucose in the Krebs cycle

• 1

• 2

• 3

Multiple Choice

How many NAD are reduced per glucose in the Krebs cycle

• 3

• 4

• 6

• 8

Multiple Choice

How is the ATP made during the Krebs cycle?

• Substrate Level Phosphorylation

• Chemiosmosis

Multiple Choice

How many ATP are produced for each Reduced NAD?

• 1

• 2

• 3

Multiple Choice

How many ATP are produced for each Reduced FAD?

• 1

• 2

• 3

Multiple Choice

How is the ATP made during oxidative phosphorylation?

• Substrate Level Phosphorylation

• Chemiosmosis