Osmotic theory of acitve water absorption was given

Options

A. Eaton
B. Bennet-Clark
C. Atkins
D. Kramer

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the scientist who proposed the osmotic theory of active water absorption in plants.

2. **Defining Active Water Absorption**: Active water absorption refers to the process by which roots of plants absorb water against a concentration gradient, requiring energy in the form of ATP. This energy is generated through root respiration.

3. **Types of Active Water Absorption**: There are two main types of active water absorption:
- **Active Osmotic Water Absorption**: This involves the movement of water through osmosis, where water moves from an area of lower solute concentration to an area of higher solute concentration.
- **Active Non-Osmotic Water Absorption**: This refers to the absorption of water that does not primarily depend on osmotic gradients.

4. **Identifying the Scientist**: The osmotic theory of active water absorption was first proposed by a scientist named **Atkins** in **1916**. This theory was later supported by another scientist, **Bristolie**, in **1921**.

5. **Conclusion**: Based on the information provided, the correct answer to the question is that the osmotic theory of active water absorption was given by **Atkins**.

### Final Answer:
The osmotic theory of active water absorption was given by **Atkins**.

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