A level Respiration

Glycolysis involves what processes?

• Addition of ATP to phosphorylate pyruvate

• Oxidation of triose phosphate using coenzyme NAD

• Reduction of triose phosphate using coenzyme NAD

• Decarboxylation of pyruvate

• Addition of ATP to phosphorylate glucose

Glycolysis occurs in the...

• Matrix of the mitochondria

• Cristae of the mitochondria

• Cytoplasm of the cell

• Inner membrane space of the cristae

The link reaction requires what processes?

• Removal of carbon dioxide

• oxidation of pyruvate using NAD

• The addition of Coenzyme A

• The reduction of pyruvate using NAD

State the name of the substrate that enters the Krebs cycle from the link reaction

• Pyruvate

• Acetylcoenzyme A

• coenzyme A

• citrate

• oxaloacetate

ATP a useful molecule. Which statement is NOT a correct reason?

• It can be regenerated quickly

• It can be broken down in one step

• It can be used to phosphorylate molecules

• it can be transported out of the cell.

How is ATP generated in the Krebs cycle

• oxidative phosphorylation

• photophosphorylation

• Substrate level phosphorylation

• anaerobic fermentation

What is the name of ATP

• adenine triphosphate

• adenosine triphosphate

• amino triphosphate

• aminosine triphosphate

Why is oxygen needed for the electron transfer chain to continue

• oxidises ATP synthase to generate ATP

• reduces ADP to produce ATP

• acts as the final electron acceptor

• acts as the final acceptor for coenzymes NAD and FAD

The flow of Hydrogen ions through ATP synthase leading to the generation of ATP is an example of...

• Osmotic theory

• simple diffusion

• Active transport

• Chemiosmotic theory

Proteins can also be a respiratory substrate. What needs to happen first before it is respired?

• decarboxylation (removal of carbon)

• dehydrogenation (removal of hydrogen)

• deamination (removal of amino groups)