Which is a viable path that a carbon atom could take as it moves through metabolic pathways in a cell? Amino acid → purine → DNA → purine → amino acid → acetyl CoA –→ fatty acid triglyceride Amino acid acetyl CoA → ► purine pyrimidine glycerol fatty acid → lactic acid → glucose Glucose → glycerol → triglyceride fatty acid → purine - → DNA → pyrimidine → amino acid Fatty acid → amino acid pyrimidine → purine → glucose glycerol → acetyl CoA amino acid Pyrimidine → fatty acid purine amino acid acetyl CoA → glucose pyruvate → lactic acid

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Question:**
Which is a viable path that a carbon atom could take as it moves through metabolic pathways in a cell?

**Options:**

1. Amino acid → purine → DNA → purine → amino acid → acetyl CoA → fatty acid → triglyceride

2. Amino acid → acetyl CoA → purine → pyrimidine → glycerol → fatty acid → lactic acid → glucose

3. Glucose → glycerol → triglyceride → fatty acid → purine → DNA → pyrimidine → amino acid

4. Fatty acid → amino acid → pyrimidine → purine → glucose → glycerol → acetyl CoA → amino acid

5. Pyrimidine → fatty acid → purine → amino acid → acetyl CoA → glucose → pyruvate → lactic acid

The options provide different metabolic pathways, highlighting the transitions a carbon atom can undergo in cellular metabolism. Each pathway includes a series of biochemical transformations starting and ending with various biomolecules.
Transcribed Image Text:**Question:** Which is a viable path that a carbon atom could take as it moves through metabolic pathways in a cell? **Options:** 1. Amino acid → purine → DNA → purine → amino acid → acetyl CoA → fatty acid → triglyceride 2. Amino acid → acetyl CoA → purine → pyrimidine → glycerol → fatty acid → lactic acid → glucose 3. Glucose → glycerol → triglyceride → fatty acid → purine → DNA → pyrimidine → amino acid 4. Fatty acid → amino acid → pyrimidine → purine → glucose → glycerol → acetyl CoA → amino acid 5. Pyrimidine → fatty acid → purine → amino acid → acetyl CoA → glucose → pyruvate → lactic acid The options provide different metabolic pathways, highlighting the transitions a carbon atom can undergo in cellular metabolism. Each pathway includes a series of biochemical transformations starting and ending with various biomolecules.
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