Amino acids, glucose, electrolytes like `Na^(+)` are absorbed by -

Options

A. Active transport
B. Passive transport
C. Facilitated transport
D. Osmosis

Answer

To solve the question regarding the absorption of amino acids, glucose, and electrolytes like sodium, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Substances**: The question mentions amino acids, glucose, and electrolytes (specifically sodium ions). These are all essential nutrients that need to be absorbed by the body.

2. **Understand the Absorption Process**: Nutrient absorption in the intestines can occur via different mechanisms, primarily passive transport and active transport.

3. **Define Active Transport**: Active transport is a process that requires energy to move substances against their concentration gradient, meaning from an area of lower concentration to an area of higher concentration.

4. **Relate to the Nutrients**: Amino acids and glucose are absorbed in the intestines primarily through active transport mechanisms. Sodium ions (Na^+) are also absorbed via active transport processes.

5. **Energy Requirement**: Since active transport requires energy, it utilizes ATP (adenosine triphosphate) to facilitate the movement of these nutrients from areas of lower concentration in the intestinal lumen to areas of higher concentration in the bloodstream.

6. **Conclusion**: Therefore, the correct answer to the question is that amino acids, glucose, and electrolytes like sodium are absorbed by **active transport**.

### Final Answer:
Amino acids, glucose, and electrolytes like Na^+ are absorbed by **active transport**.

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