Citric Acid Cycle

A deficiency of oxaloacetate would most likely increase the catabolism of what potential energy source?

• Acetyl-CoA

• Glucogenic amino acids

• Ketogenic amino acids

• Acetoacetyl-CoA

What is the 2nd stage of Cellular Respiration called?

Where do stages 2 and 3 occur?

Tags

NGSS.HS-LS1-7

How many ATP are produced in stage 2 of Cellular Respiration?

Which of the following is NOT a name for the metabolic process illustrated?

• Tricarboxylic acid

• Acetyl coA cycle

• Krebs Cycle

• Citric Acid Cycle

Answer explanation

The metabolic process is known as the citric acid cyle, tricarboxylic acid and Krebs cycle which is based on who developed it.

Tags

NGSS.HS-LS1-7

What type(s) of reaction does the following step in the citric acid cycle is illustrated?

• Oxidation

• Decarboxylation

• Condensation

• More than one is correct.

Answer explanation

The reaction shown is step 5 of the citric acid cycle which involves oxidation in the presence of NAD⁺ which is followed by decarboxylation or the removal of carbon in the form of carbon dioxide (CO₂).

Tags

NGSS.HS-PS1-4

True or False. The 2 CO₂ molecules produced during the citric acid cycle are the CO₂ molecules exhaled in the process of respiration.

• True

• False

Tags

NGSS.HS-LS1-7

Which molecule initiates the Citric Acid Cycle by combining with oxaloacetate?

• Acetyl-CoA

• Pyruvate

• Citrate

• Succinate

What is the primary function of the Citric Acid Cycle?

• To produce ATP directly

• To generate NADH and FADH2

• To break down glucose

• To synthesize fatty acids

Which enzyme catalyzes the conversion of citrate to isocitrate in the Citric Acid Cycle?

• Aconitase

• Citrate synthase

• Isocitrate dehydrogenase

• Fumarase