Unit 2: Cells and Cell Transport

Front

What is the function of the cell membrane?

Back

The cell membrane maintains homeostasis by controlling what moves in and out of the cell.

Front

What is endocytosis?

Back

Endocytosis is a type of active transport where the cell engulfs materials from the outside environment.

Front

What is exocytosis?

Back

Exocytosis is a type of active transport where materials are expelled from the cell.

Front

What does semi-permeable mean?

Back

Semi-permeable means that only some materials can cross the membrane.

Front

What is osmosis?

Back

Osmosis is the movement of water across a semi-permeable membrane.

Front

What is the role of the Golgi apparatus?

Back

The Golgi apparatus packages and ships molecules, similar to a post office.

Front

What is the primary function of the nucleus?

Back

The nucleus stores the cell's genetic material (DNA) and controls cellular activities.

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.

Front

What is a phospholipid?

Back

A phospholipid is a molecule that makes up the cell membrane, consisting of a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment.