Cells Unit Review (Honors)

Front

What is the function of the cell wall in plant cells?

Back

The cell wall protects the cell and provides shape and support.

Front

Where are proteins synthesized in a cell?

Back

Proteins are synthesized within ribosomes.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that allows molecules to cross membranes with the assistance of special proteins.

Front

How does water move into plant root cells when the concentration of water is higher in the soil?

Back

Water moves into root cells of a plant by osmosis.

Front

What is active transport?

Back

Active transport is the movement of molecules against a concentration gradient, requiring energy.

Front

What is the difference between passive and active transport?

Back

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

Front

What role do ribosomes play in the cell?

Back

Ribosomes are responsible for synthesizing proteins.

Front

Define osmosis in the context of cell biology.

Back

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

Front

What is the significance of the concentration gradient in cellular transport?

Back

The concentration gradient is crucial for determining the direction of movement of substances across cell membranes, influencing both passive and active transport.

Front

What are the main components of the cell membrane?

Back

The main components of the cell membrane are phospholipids, proteins, cholesterol, and carbohydrates.