Carbohydrates Metabolism and Glycolysis
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Questions and Answers

What is the end product of glycolysis under anaerobic conditions?

  • Pyruvate
  • Acetyl CoA
  • NAD+
  • Lactic acid (correct)

Where does glycolysis occur?

  • Mitochondria
  • Nucleus
  • Cytoplasm (correct)
  • Endoplasmic reticulum

What are the end products of glycolysis under aerobic conditions?

  • Acetyl CoA, NAD+, FADH2
  • Lactic acid, NADH, CO2
  • Glucose 6-phosphate, Ribose 5-phosphate, Fructose 6-phosphate
  • Pyruvate, ATP, NADH+H+ (correct)

What happens to pyruvate under aerobic conditions?

<p>It is converted into acetyl CoA and enters the TCA cycle (D)</p> Signup and view all the answers

What is the overall net reaction of glycolysis under anaerobic conditions?

<p>Glucose -&gt; 2 Lactic acid + 2 ATP + 2 NAD+ (C)</p> Signup and view all the answers

During aerobic glycolysis, pyruvate and NADH+H+ enter the mitochondria for further transformation.

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

Lactic acid is formed in the cytoplasm from pyruvate and NADH to regenerate NAD+ in anaerobic conditions.

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

Glycolysis occurs in the mitochondria of all cells.

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

The overall net reaction of glycolysis under anaerobic conditions consists of 11 coupled reactions.

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

Glycolysis is the central pathway for the anabolism of glucose.

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

Flashcards

Glycolysis product (anaerobic)

Lactic acid

Glycolysis location

Cytoplasm

Glycolysis product (aerobic)

Pyruvate, ATP, NADH+H+

Aerobic pyruvate fate

Converted to acetyl CoA and enters TCA cycle.

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Anaerobic glycolysis overall reaction

Glucose → 2 Lactic acid + 2 ATP + 2 NAD+

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Aerobic glycolysis and mitochondria

Pyruvate and NADH+H+ enter mitochondria for further change.

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Lactic acid origin

From pyruvate and NADH, regenerating NAD+ in anaerobic conditions.

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Glycolysis location (correct)

Cytoplasm, not mitochondria

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Glycolysis reaction count (incorrect)

Not 11 coupled reactions.

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Glycolysis role (incorrect)

Not a glucose-building process, it's breakdown.

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