Cell Transport

Front

What is the function of the cell membrane?

Back

The cell membrane acts as a 'gatekeeper' that controls what enters and exits the cell, maintaining homeostasis.

Front

What is osmosis?

Back

Osmosis is the 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 happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

Front

What is equilibrium in the context of cell transport?

Back

Equilibrium is the state where the concentration of a substance is equal throughout a space, meaning there is no net movement of that substance.

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 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 concentration gradient.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain substances to pass through while blocking others, crucial for maintaining cellular homeostasis.

Front

What is the role of vacuoles in cells?

Back

Vacuoles are storage organelles that can hold various substances, including nutrients, waste products, and water.

Front

What is the process of endocytosis?

Back

Endocytosis is the process by which cells engulf substances from their external environment, bringing them into the cell.

Front

What is exocytosis?

Back

Exocytosis is the process by which cells expel materials, packaging them in vesicles that fuse with the cell membrane.