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 Signaling on Glucose Metabolism

Biochemistry

12. Biosignaling

Insulin Signaling on Glucose Metabolism

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Multiple Choice

Insulin blood K$^+$ levels by stimulating in cells.

increases; release of K$^+$

increases; uptake of K$^+$

decreases; release of K$^+$

decreases; uptake of K$^+$

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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 pancreas that regulates glucose metabolism and has effects on ion transport, including potassium (K$^+$).

Step 2: Recall that insulin stimulates the activity of Na$^+$/K$^+$ ATPase pumps in cell membranes. These pumps actively transport K$^+$ ions into cells while moving Na$^+$ ions out of cells.

Step 3: Consider the effect of increased K$^+$ uptake into cells. When insulin stimulates the Na$^+$/K$^+$ ATPase, more K$^+$ is moved from the extracellular space into the intracellular space, thereby decreasing blood K$^+$ levels.

Step 4: Analyze the options provided in the question. The correct answer must reflect the decrease in blood K$^+$ levels and the mechanism of uptake of K$^+$ into cells.

Step 5: Confirm that the correct answer is 'decreases; uptake of K$^+$' because insulin lowers blood K$^+$ levels by stimulating the uptake of K$^+$ into cells via Na$^+$/K$^+$ ATPase activity.