Water moves from a higher water concentration to a lower water concentration across a selectively permeable membrane; involves a specific carrier protein, requires ATP energy input Water moves from a lower water concentration to a higher water concentration across a selectively permeable membrane; does not involve a specific carrier protein; a passive process Water moves from a higher water concentration to a lower water concentration across a selectively permeable membrane; does not involve a specific carrier protein; an active process Water moves from a lower water concentration to a higher water concentration across a selectively permeable membrane; involves a specific carrier protein; requires ATP energy input Water moves from a higher water concentration to a lower water concentration across a selectively permeable membrane; does not involve a specific carrier protein: a passive process.

"Water moves from a higher water concentration to a lower water concentration across a selectively permeable membrane; does not involve a specific carrier protein: a passive process."

1. **Water moves from a higher water concentration to a lower water concentration across a selectively permeable membrane; involves a specific carrier protein, requires ATP energy input**: This statement describes active transport, specifically the process of moving water (or other molecules) against their concentration gradient with the help of carrier proteins and the input of ATP energy. This is typically referred to as "active transport" because it requires energy to move substances against their natural flow.

2. **Water moves from a lower water concentration to a higher water concentration across a selectively permeable membrane; does not involve a specific carrier protein; a passive process**: This statement is incorrect. Water naturally moves from an area of higher concentration to an area of lower concentration through a process called osmosis. This is a passive process that doesn't require energy input. The correct direction for osmosis is from a higher water concentration to a lower water concentration.

3. **Water moves from a higher water concentration to a lower water concentration across a selectively permeable membrane; does not involve a specific carrier protein; an active process**: This statement is incorrect. Active processes involve the input of energy, and the described movement of water is actually a passive process called osmosis, where water moves from an area of higher concentration to an area of lower concentration.

4. **Water moves from a lower water concentration to a higher water concentration across a selectively permeable membrane; involves a specific carrier protein; requires ATP energy input**: This statement is incorrect. Water doesn't naturally move from a lower concentration to a higher concentration without external energy input. Additionally, water movement across membranes is primarily facilitated by aquaporin proteins, which are specific to water transport.

5. **Water moves from a higher water concentration to a lower water concentration across a selectively permeable membrane; does not involve a specific carrier protein: a passive process**: This statement accurately describes osmosis, which is the passive movement of water across a membrane from an area of higher water concentration to an area of lower water concentration. No specific carrier proteins are involved in this process.

So, the correct statement is: **"Water moves from a higher water concentration to a lower water concentration across a selectively permeable membrane; does not involve a specific carrier protein: a passive process."**

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