Cells

Front

What is the function of the nucleus in a cell?

Back

The nucleus stores hereditary material (DNA) and coordinates the activities of the cell.

Front

What is the structure of a cell membrane?

Back

The cell membrane is a semipermeable barrier that controls the movement of substances in and out of the cell.

Front

What are the main functions of a cell membrane?

Back

The cell membrane protects the cell, provides structure, and regulates the transport of materials.

Front

What is an animal cell?

Back

An animal cell is a type of eukaryotic cell that lacks a cell wall and contains membrane-bound organelles.

Front

What is a semipermeable membrane?

Back

A semipermeable membrane allows certain molecules to pass through while blocking others based on size or charge.

Front

Why can water molecules diffuse through a semipermeable membrane?

Back

Water molecules can diffuse through a semipermeable membrane because they are small enough to pass through the membrane's pores.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.