Tonicity Practice

Front

What is osmosis?

Back

Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration across a semi-permeable membrane.

Front

What happens to a blood cell in an isotonic solution?

Back

In an isotonic solution, water moves equally in and out of the cell, maintaining its shape.

Front

Define permeable.

Back

Permeable means that substances can pass through a membrane.

Front

What is the primary component of the plasma membrane?

Back

The plasma membrane is primarily made of phospholipids.

Front

What occurs to an animal cell in a hypertonic solution?

Back

An animal cell placed in a hypertonic solution will shrink as water moves out of the cell.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to move into the cell.

Front

Explain the term 'solute'.

Back

A solute is a substance that is dissolved in a solvent, forming a solution.

Front

What is the role of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.

Front

What does it mean for a solution to be hypertonic?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy.