Cell Transport

Front

What does it mean if a membrane is selectively permeable?

Back

A selectively permeable membrane allows some substances to pass through while blocking others.

Front

What is required for active transport to move materials across the cell membrane?

Back

Active transport requires energy to move materials against their concentration gradient.

Front

What process describes the movement of water into or out of a cell?

Back

Osmosis is the process by which water moves across a selectively permeable membrane.

Front

What is the term for when a cell surrounds a particle and uses energy to bring it inside?

Back

Engulfing is the process where a cell surrounds a particle and takes it in using energy.

Front

How would you describe the cell membrane's permeability to oxygen and nutrients?

Back

The cell membrane is permeable to materials like oxygen and nutrients, allowing them to enter the cell.

Front

What is diffusion?

Back

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy to move substances.

Front

What role do transport proteins play in cell transport?

Back

Transport proteins help move substances across the cell membrane, especially those that cannot pass through easily.

Front

What is osmosis specifically related to?

Back

Osmosis specifically refers to the movement of water molecules across a selectively permeable membrane.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.