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 protein acting as a hormone regulates blood glucose levels in the human body?

Hemoglobin

Myosin

Collagen

Insulin

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Verified step by step guidance

Step 1: Understand the role of hormones in regulating blood glucose levels. Hormones are chemical messengers that help maintain homeostasis in the body, including blood sugar levels.

Step 2: Recall that insulin is a protein hormone produced by the beta cells of the pancreas. Its primary function is to lower blood glucose levels by facilitating the uptake of glucose into cells and promoting glycogen synthesis in the liver.

Step 3: Eliminate the incorrect options by understanding their functions: Hemoglobin is a protein responsible for oxygen transport in the blood, Myosin is involved in muscle contraction, and Collagen provides structural support in connective tissues. None of these proteins regulate blood glucose levels.

Step 4: Confirm that insulin is the correct answer by recognizing its specific role in glucose metabolism and its importance in conditions like diabetes, where insulin regulation is impaired.

Step 5: Conclude that insulin is the protein hormone responsible for regulating blood glucose levels in the human body.