Cell Parts and Processes Review

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration, resulting in an even distribution of particles.

Front

What is homeostasis?

Back

Homeostasis is the ability of an organism to maintain a stable internal environment despite changes in external conditions.

Front

Are prokaryotes unicellular or multicellular?

Back

Prokaryotes are unicellular organisms, meaning they consist of a single cell.

Front

What is 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 energy source do most active transport proteins use?

Back

Most active transport proteins use energy from the breakdown of ATP (adenosine triphosphate).

Front

Which type of cell contains a nucleus?

Back

Eukaryotic cells contain a nucleus, while prokaryotic cells do not.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which molecules pass through the cell membrane with the help of transport proteins, without the use of energy.

Front

What role do mitochondria play in cells?

Back

Mitochondria are known as the powerhouse of the cell, as they produce ATP through cellular respiration.

Front

What is the function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, providing protection and support.