ATP is required for active transport.
A. True
B. False

Answer

To determine whether ATP is required for active transport, we can follow these steps:

### Step 1: Understand Active Transport
Active transport is a biological process that moves molecules across a cell membrane from an area of lower concentration to an area of higher concentration. This process is essential for maintaining cellular functions and homeostasis.

**Hint:** Remember that active transport involves moving substances against their concentration gradient.

### Step 2: Identify the Energy Requirement
Since active transport moves substances against their concentration gradient, it requires energy. This energy is typically provided by ATP (adenosine triphosphate), which is known as the energy currency of the cell.

**Hint:** Consider how energy is needed to move substances in the opposite direction of their natural flow.

### Step 3: Conclude the Role of ATP
Given that ATP provides the necessary energy for active transport to occur, we can conclude that ATP is indeed required for this process.

**Hint:** Think about the relationship between energy and the movement of molecules in biological systems.

### Step 4: Answer the Question
Based on the understanding that ATP is required for active transport, we can confidently select the correct answer to the question.

**Final Answer:** A. True