Unit 4- Topic 2 - Flashcard Organelles

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through 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 process by which molecules spread from areas of high concentration to areas of low concentration until they are evenly distributed.

Front

What does semipermeable mean?

Back

Semipermeable refers to a membrane that allows certain substances to pass through while blocking others.

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, resulting in a solution. In many cases, the solvent is a liquid.

Front

What is the function of the flagellum in a cell?

Back

The flagellum is a tail-like structure that helps a cell to move by propelling it through its environment.

Front

What is the role of the plasma membrane?

Back

The plasma membrane protects the cell and regulates what enters and exits the cell.

Front

What is the difference between osmosis and diffusion?

Back

Osmosis specifically refers to the movement of water, while diffusion refers to the movement of any type of molecules.

Front

What are lysosomes?

Back

Lysosomes are organelles that contain enzymes to break down waste materials and cellular debris.

Front

What is the cell wall?

Back

The cell wall is a rigid outer layer that provides support and protection to plant cells.

Front

What is the nucleolus?

Back

The nucleolus is a structure within the nucleus of a cell where ribosomal RNA is produced.