24 - 25 Biology Fall Final Review

Front

What type of transport requires ATP energy?

Back

Active Transport

Front

The active site of an enzyme must be __________ to the substrate for a chemical reaction to take place.

Back

complementary

Front

What is the role of the cell membrane?

Back

Allows some things to enter and leave the cell

Front

Which type of cell in the human body would need the most mitochondria?

Back

Muscle

Front

During osmosis, what is the only molecule that moves?

Back

Water

Front

Define Active Transport.

Back

The movement of molecules across a cell membrane using energy (ATP) against their concentration gradient.

Front

What is the function of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions by lowering the activation energy.

Front

What is osmosis?

Back

The diffusion of water molecules through a selectively permeable membrane.

Front

What is the difference between facilitated diffusion and active transport?

Back

Facilitated diffusion does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their gradient.

Front

What is a selectively permeable membrane?

Back

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