Plasma Membrane Transport

Front

Movement across the cell membrane that does not require energy is called ___ transport.

Back

Passive transport is the movement of substances across a cell membrane without the use of energy by the cell.

Front

___ is the simplest type of passive transport.

Back

Diffusion is the process by which molecules spread from an area of high concentration to an area of low concentration.

Front

The cell membrane is ___.

Back

The cell membrane is selectively permeable, meaning it allows certain substances to pass while blocking others.

Front

Choose the correct label for the image: hypertonic, isotonic, hypotonic.

Back

Hypertonic solution has a higher concentration of solutes compared to another solution.

Front

The cell membrane is composed of proteins embedded in a ___ bilayer.

Back

The cell membrane is composed of a phospholipid bilayer, which provides structure and flexibility.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

Define active transport.

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is the role of membrane proteins?

Back

Membrane proteins assist in transporting substances across the cell membrane and can act as receptors for signaling.

Front

What does it mean for a membrane to be selectively permeable?

Back

A selectively permeable membrane allows certain molecules to pass through while restricting others.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to another solution, leading to water entering the cell.