Carbohydrates Metabolism: Glycolysis Overview
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Questions and Answers

Glucose metabolism occurs only in cells with mitochondria.

False (B)

Lactic acid is formed in the mitochondria during anaerobic conditions.

False (B)

Glycolysis results in the formation of 4 molecules of ATP.

False (B)

The conversion of pyruvate into acetyl CoA occurs in the cytoplasm.

<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

What is the primary purpose of gluconeogenesis?

<p>To maintain glucose levels in the blood within a narrow range (B)</p> Signup and view all the answers

Which tissue(s) primarily rely on glucose for energy?

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

Where does the biosynthesis of glucose primarily occur?

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

Which molecule is a major precursor for gluconeogenesis?

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

What is the metabolic cost of producing glucose through gluconeogenesis?

<p>It is energy expensive (A)</p> Signup and view all the answers

Flashcards

Glucose metabolism location

Glucose metabolism does not only occur in cells with mitochondria.

Lactic acid formation location

Lactic acid is not formed in the mitochondria under anaerobic conditions

ATP yield from Glycolysis

Glycolysis produces 2 ATP molecules.

Pyruvate to Acetyl CoA location

The conversion of pyruvate to acetyl CoA takes place in the mitochondria.

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Glycolysis role in glucose anabolism

Glycolysis is a catabolic pathway, not an anabolic pathway for glucose.

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Gluconeogenesis purpose

To maintain stable blood glucose levels.

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Primary glucose users

Brain and red blood cells primarily rely on glucose.

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Glucose biosynthesis location

Glucose biosynthesis mainly happens in the liver.

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Gluconeogenesis precursor

Pyruvate is a major precursor for gluconeogenesis.

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Gluconeogenesis energy cost

Producing glucose through gluconeogenesis is an energy-intensive process.

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