Pumps are not associated with :

Options

A. Uphill transport
B. Transport from low concentration to high concentration
C. Direct or indirect ATP consumption
D. Non selective nature

Answer

To solve the question "Pumps are not associated with:", we will analyze each option provided and determine which one does not relate to the function of pumps in biological systems.

### Step-by-Step Solution:

1. **Understand the Role of Pumps**:
- Pumps are integral proteins that facilitate the movement of ions and molecules across cell membranes. They are primarily involved in active transport, which requires energy.

2. **Evaluate Option 1: Uphill Transport**:
- Pumps are indeed associated with uphill transport. This refers to the movement of substances against their concentration gradient, which requires energy. Therefore, this option is incorrect in stating that pumps are not associated with it.

3. **Evaluate Option 2: Transport from Low Concentration to High Concentration**:
- This option describes a key function of pumps. They transport substances from areas of low concentration to areas of high concentration, which is characteristic of active transport. Thus, this option is also incorrect.

4. **Evaluate Option 3: Direct or Indirect ATP Consumption**:
- Pumps consume ATP directly or indirectly to facilitate the transport of molecules. This is a fundamental aspect of their function, making this option incorrect as well.

5. **Evaluate Option 4: Non-Selective Nature**:
- Pumps are typically selective in their function, meaning they transport specific ions or molecules rather than a broad range of substances. Therefore, this option correctly states that pumps are not associated with non-selective transport.

### Conclusion:
The correct answer to the question "Pumps are not associated with:" is **Option 4: Non-Selective Nature**.

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