Select the incorrect statement w.r.t active transport.

Options

A. Uphill movement of materials takes place across the membrane
B. Solute particles move against the concentration gradient
C. Energy dependent process
D. Active transport do not requires energy

Answer

To solve the question "Select the incorrect statement w.r.t active transport," we will analyze each option provided regarding active transport.

### Step-by-Step Solution:

1. **Understanding Active Transport**:
- Active transport is a process where substances move across a cell membrane against their concentration gradient. This means that materials are transported from an area of lower concentration to an area of higher concentration.

2. **Energy Requirement**:
- Active transport requires energy to occur, which is typically provided in the form of ATP (adenosine triphosphate). This is a key characteristic of active transport.

3. **Analyzing the Options**:
- **Option 1**: "Active transport does not require energy."
- This statement is incorrect because active transport requires energy to move substances against their concentration gradient.

- **Option 2**: "Uphill movement of material takes place across the membrane."
- This statement is correct as active transport involves the uphill movement of substances against the concentration gradient.

- **Option 3**: "Energy-dependent process."
- This statement is also correct as active transport is indeed energy-dependent.

- **Option 4**: "Active transport can occur without ATP."
- This statement is incorrect because active transport specifically requires ATP or another form of energy to function.

4. **Identifying the Incorrect Statement**:
- Based on the analysis, both Option 1 and Option 4 contain incorrect statements regarding active transport. However, since the question asks for one incorrect statement, we can choose Option 1 as it directly contradicts the fundamental principle of active transport.

### Conclusion:
The incorrect statement regarding active transport is **Option 1: "Active transport does not require energy."**