Cell Transport

Front

What is Active Transport?

Back

Active Transport is the movement of solutes against the concentration gradient, requiring energy (ATP) to pump substances across a membrane.

Front

What is Passive Transport?

Back

Passive Transport is the movement of substances across a cell membrane without the need for energy, occurring along the concentration gradient.

Front

What does Homeostasis mean in the context of cell membranes?

Back

Homeostasis refers to the ability of a cell membrane to maintain a stable internal environment despite changes in external conditions.

Front

What happens to an animal cell in a hypertonic solution?

Back

An animal cell placed in a hypertonic (salty) solution will shrink as water moves out of the cell.

Front

What is the role of ATP in Active Transport?

Back

ATP provides the energy required for Active Transport to move solutes against their concentration gradient.

Front

Define 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 a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance across a space, which drives the movement of particles.

Front

What is the difference between Active 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 along their gradient.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of a cell, causing the cell to lose water.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of a cell, causing the cell to gain water and potentially swell.