Unit 2 Test

Front

What are the tails of the phospholipids in the cell membrane considered to be?

Back

Hydrophobic: water hating.

Front

What organelle is known as the "powerhouse" of a cell?

Back

Mitochondria.

Front

In a hypotonic solution, which direction does water move to create equilibrium?

Back

Water moves into the cell.

Front

What type of movement goes from low to high concentration?

Back

Active transport.

Front

In a hypotonic solution, where are most of the solutes located?

Back

Inside the cell.

Front

What is the function of the mitochondria?

Back

To produce energy (ATP) for the cell.

Front

Define hydrophilic.

Back

Water loving; substances that can interact with water.

Front

Define diffusion.

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the role of the cell membrane?

Back

To protect the cell and regulate what enters and exits.