Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

12. Biosignaling

Insulin

Biochemistry

12. Biosignaling

Insulin

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Multiple Choice

Which of the following is NOT true about insulin?

Insulin is a peptide hormone produced by the beta cells of the pancreas.

Insulin stimulates the synthesis of glycogen in the liver.

Insulin increases blood glucose levels by stimulating gluconeogenesis.

Insulin promotes the uptake of glucose into muscle and adipose tissue.

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Verified step by step guidance

Step 1: Begin by understanding the role of insulin in the body. Insulin is a peptide hormone produced by the beta cells of the pancreas. Its primary function is to regulate blood glucose levels by promoting glucose uptake and storage.

Step 2: Analyze each statement provided in the question. For example, the first statement, 'Insulin is a peptide hormone produced by the beta cells of the pancreas,' is true based on the definition of insulin.

Step 3: Evaluate the second statement, 'Insulin stimulates the synthesis of glycogen in the liver.' This is also true because insulin activates enzymes that promote glycogen synthesis, a process called glycogenesis.

Step 4: Examine the third statement, 'Insulin increases blood glucose levels by stimulating gluconeogenesis.' This is incorrect because insulin decreases blood glucose levels and inhibits gluconeogenesis, which is the production of glucose from non-carbohydrate sources.

Step 5: Review the fourth statement, 'Insulin promotes the uptake of glucose into muscle and adipose tissue.' This is true because insulin facilitates glucose transport into these tissues via GLUT4 transporters, helping to lower blood glucose levels.