Cellular Transport

Front

What is the structure of the cell membrane?

Back

The cell membrane is flexible and fluid, not solid and rigid.

Front

What process engulfs large molecules and moves them inside the cell membrane?

Back

Endocytosis is the process that engulfs large molecules and moves them inside the cell, using energy.

Front

What is a solute?

Back

A solute is the substance that is dissolved in a solution.

Front

What happens to a cell in an isotonic solution?

Back

A cell in an isotonic solution will stay the same size.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a cell membrane from an area of high concentration to an area of low concentration.

Front

What is the function of a protein channel in cellular transport?

Back

A protein channel facilitates the movement of specific molecules across the cell membrane.

Front

What is active transport?

Back

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

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of solutes from high to low concentration, while osmosis specifically refers to the movement of water.

Front

What is the role of the solvent in a solution?

Back

The solvent is the substance that dissolves the solute, forming a solution.

Front

What occurs during exocytosis?

Back

Exocytosis is the process by which cells expel large molecules or waste products from the cell.