Cell Transport

Front

What is the function of the cell membrane?

Back

The cell membrane is a semi-permeable structure that controls what substances can enter or leave the cell, helping maintain homeostasis.

Front

What process allows water to move into plant root cells when the concentration of water is higher in the soil?

Back

Osmosis is the process that allows water to move into plant root cells.

Front

During passive transport, molecules move from an area of ______ concentration to an area of _____ concentration.

Back

Molecules move from an area of higher concentration to an area of lower concentration.

Front

What is true about active transport?

Back

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

Front

What is endocytosis?

Back

Endocytosis is the process where the cell membrane surrounds a particle and encloses it, allowing large particles to enter the cell.

Front

Define osmosis.

Back

Osmosis is the movement of water molecules through a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy, typically moving from high to low concentration.

Front

What is the difference between active transport and passive transport?

Back

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

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses protein channels to help move substances across the cell membrane.

Front

What role do protein channels play in cell transport?

Back

Protein channels facilitate the movement of specific molecules across the cell membrane, especially those that cannot easily pass through the lipid bilayer.