Unit 2 Flashcard

Front

In what direction do particles naturally diffuse?

Back

Down their concentration gradient.

Front

What is the function of the mitochondria?

Back

Structure that converts glucose to ATP energy.

Front

When the number of water molecules outside of the cell is greater than inside the cell, which will most likely occur?

Back

Molecules of water will move INTO the cell.

Front

Which type of passive transport uses proteins to help molecules pass through the membrane?

Back

Facilitated diffusion.

Front

What is the definition of diffusion?

Back

The process by which particles spread from areas of high concentration to areas of low concentration.

Front

What is osmosis?

Back

The diffusion of water molecules through a selectively permeable membrane.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes are structures that manufacture proteins.

Front

What is the primary energy currency of the cell?

Back

ATP (Adenosine Triphosphate).

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 selectively permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.