Unit 2: Cell SF & Transport

Front

What is active transport?

Back

Active transport is the movement of particles from an area of lower concentration to an area of higher concentration, requiring energy (ATP).

Front

What is passive transport?

Back

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

Front

What is ATP and its role in cellular processes?

Back

ATP (adenosine triphosphate) is the energy currency of the cell, required for various cellular processes, including active transport and exocytosis.

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 without energy.

Front

What is osmosis?

Back

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

Front

What are lipids?

Back

Lipids are organic compounds that are a major component of cell membranes, providing structure and energy storage.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing the cell to shrink as water moves out.

Front

What is an isotonic solution?

Back

An isotonic solution has an equal concentration of solutes inside and outside the cell, resulting in no net movement of water.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing the cell to swell as water moves in.

Front

What is exocytosis?

Back

Exocytosis is an active transport process where cells expel materials in vesicles, requiring energy (ATP).