EOC: Biomolecule & Cell Transport Review

Front

What is the primary function of lipids in biological systems?

Back

Lipids primarily function as energy storage molecules and structural components of cell membranes.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What role do proteins play in cell transport?

Back

Proteins function as channels and carriers that facilitate the movement of substances into and out of the cell.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to enter the cell.

Front

What happens to a plant cell in a hypertonic solution?

Back

In a hypertonic solution, water leaves the plant cell, leading to plasmolysis and wilting.

Front

Define enzymes and their function.

Back

Enzymes are proteins that act as catalysts to speed up chemical reactions in the body.

Front

What is the function of carbohydrates in living organisms?

Back

Carbohydrates serve as a primary source of energy and are involved in cell recognition and signaling.

Front

What is the significance of cholesterol in cell membranes?

Back

Cholesterol helps to maintain membrane fluidity and stability in cell membranes.

Front

What are hormones?

Back

Hormones are signaling molecules produced by glands that regulate physiological processes in the body.

Front

Explain the process of active transport.

Back

Active transport is the movement of substances against their concentration gradient, requiring energy (ATP).