Basic ReviewPt2: Osmosis & Active Transport

Front

What is active transport?

Back

Active transport is the movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

Front

What is osmosis?

Back

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

Front

What does ATP stand for?

Back

ATP stands for Adenosine Triphosphate, which is a high-energy molecule used by cells.

Front

What is the difference between phagocytosis and pinocytosis?

Back

Phagocytosis is the process by which a cell takes in solids, while pinocytosis is the process by which a cell takes in liquids.

Front

What is the role of energy in active transport?

Back

Energy is required in active transport to move substances against their concentration gradient, from lower to higher concentration.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically moving from higher to lower concentration.

Front

What is diffusion?

Back

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

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that allows certain substances to pass through while blocking others.

Front

How do plant roots absorb minerals from the soil?

Back

Plant roots absorb minerals from the soil through active transport, moving minerals from a region of lower concentration in the soil to a higher concentration in the roots.

Front

What is the significance of ATP in cellular processes?

Back

ATP provides the energy necessary for various cellular processes, including active transport and metabolic reactions.