Cell Transport & Homeostasis Review

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solute (less water) compared to another solution, causing cells to lose water and shrink.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy.

Front

What is phagocytosis?

Back

Phagocytosis is the process by which a cell engulfs large particles, such as bacteria or viruses, to protect the body.

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels materials in vesicles, releasing them outside the cell.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, moving down the concentration gradient.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the role of energy in active transport?

Back

Energy is required in active transport to move substances against their concentration gradient.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, a cell loses water and may shrink due to the higher concentration of solute outside the cell.

Front

What is the difference between endocytosis and exocytosis?

Back

Endocytosis is the process of taking materials into the cell, while exocytosis is the process of expelling materials from the cell.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solute (more water) compared to another solution, causing cells to gain water and swell.