Catabolic vs

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Questions and Answers

During the TCA cycle, what is the initial reaction that occurs when the 2-carbon acetyl group of acetyl-CoA combines with a 4-carbon molecule?

  • Regeneration of oxaloacetic acid (OAA)
  • Formation of citric acid (TCA) (correct)
  • Formation of D-isocitrate
  • Formation of succinyl-CoA

How many NADH molecules are generated as a result of two turns of the TCA cycle from 1 glucose molecule?

  • 10 NADH
  • 8 NADH
  • 4 NADH
  • 6 NADH (correct)

What is the primary location where the TCA cycle occurs?

  • Intermembrane space
  • Nucleus
  • Cytoplasm
  • Mitochondrial matrix (correct)

What molecule is regenerated as a result of the oxidative reactions in the TCA cycle?

<p>Oxaloacetic acid (OAA) (C)</p> Signup and view all the answers

What is the final product of the TCA cycle when two carbon molecules are oxidized to CO2?

<p>Oxaloacetate (D)</p> Signup and view all the answers

What is the 2-carbon molecule that combines with a 4-carbon molecule to start the TCA cycle?

<p>Acetyl-CoA (C)</p> Signup and view all the answers

What is the TCA cycle also known as?

<p>Citric acid cycle (C)</p> Signup and view all the answers

How many acetyl groups are required for two turns of the TCA cycle from 1 glucose molecule?

<p>2 acetyl groups (A)</p> Signup and view all the answers

What is the molecule formed when the 2-carbon acetyl group combines with a 4-carbon molecule in the TCA cycle?

<p>Citric acid (TCA) (C)</p> Signup and view all the answers

What are the reducing powers generated as a result of two turns of the TCA cycle from 1 glucose molecule?

<p>NADH, FADH2 (C)</p> Signup and view all the answers

What is the total number of NADH molecules generated as a result of two turns of the TCA cycle from 1 glucose molecule?

<p>8 NADH (D)</p> Signup and view all the answers

What is the molecule formed when the 2-carbon acetyl group combines with a 4-carbon molecule in the TCA cycle?

<p>Citric acid (A)</p> Signup and view all the answers

During the TCA cycle, what is the initial reaction that occurs when the 2-carbon acetyl group of acetyl-CoA combines with a 4-carbon molecule?

<p>Formation of citric acid (C)</p> Signup and view all the answers

What is the final product of the TCA cycle when two carbon molecules are oxidized to $CO_2$?

<p>Oxaloacetate (A)</p> Signup and view all the answers

What molecule is regenerated as a result of the oxidative reactions in the TCA cycle?

<p>Oxaloacetate (B)</p> Signup and view all the answers

What is the primary location where the TCA cycle occurs?

<p>Mitochondrial matrix (D)</p> Signup and view all the answers

What are the reducing powers generated as a result of two turns of the TCA cycle from 1 glucose molecule?

<p>6 NADH, 2 FADH2 (C)</p> Signup and view all the answers

What is the 2-carbon molecule that combines with a 4-carbon molecule to start the TCA cycle?

<p>Acetyl-CoA (C)</p> Signup and view all the answers

What is the TCA cycle also known as?

<p>Kreb's cycle (C)</p> Signup and view all the answers

How many acetyl groups are required for two turns of the TCA cycle from 1 glucose molecule?

<p>2 acetyl groups (A)</p> Signup and view all the answers

How many NADH molecules are generated as a result of two turns of the TCA cycle from 1 glucose molecule?

<p>10 (A)</p> Signup and view all the answers

What is the total number of NADH and FADH2 molecules generated as a result of two turns of the TCA cycle from 1 glucose molecule?

<p>10 NADH, 2 FADH2 (A)</p> Signup and view all the answers

What is the molecule that combines with the 2-carbon acetyl group to start the TCA cycle?

<p>Oxaloacetic acid (OAA) (B)</p> Signup and view all the answers

What is the TCA cycle also known as?

<p>Citric acid cycle (B)</p> Signup and view all the answers

What is the final product of the TCA cycle when two carbon molecules are oxidized to $CO_2$?

<p>Oxaloacetate (B)</p> Signup and view all the answers

Where does the TCA cycle occur?

<p>Mitochondrial matrix (C)</p> Signup and view all the answers

How many acetyl groups are required for two turns of the TCA cycle from 1 glucose molecule?

<p>2 (D)</p> Signup and view all the answers

What is the primary function of the TCA cycle?

<p>To oxidize acetyl-CoA and produce NADH and FADH2 (C)</p> Signup and view all the answers

Which molecule is regenerated as a result of the oxidative reactions in the TCA cycle?

<p>Oxaloacetic acid (OAA) (B)</p> Signup and view all the answers

What is the primary electron carrier that is reduced to NADH during the TCA cycle?

<p>NAD+ (C)</p> Signup and view all the answers

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