Cell Transportation:22

Front

What is cell transportation?

Back

Cell transportation refers to the movement of substances across the cell membrane, which can occur through various mechanisms such as diffusion, osmosis, and active transport.

Front

What is the function of the cell membrane?

Back

The cell membrane is a semi-permeable layer that encloses the contents of the cell, controlling the movement of substances in and out.

Front

Define passive transport.

Back

Passive transport is the movement of molecules across the cell membrane without the use of energy, typically from an area of high concentration to an area of low concentration.

Front

Define active transport.

Back

Active transport is the movement of molecules against their concentration gradient, from low to high concentration, requiring energy (ATP) to do so.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a semi-permeable membrane from an area of low solute concentration to an area of high 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 happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.

Front

What is equilibrium in the context of cell transportation?

Back

Equilibrium is the state where the concentration of substances is equal on both sides of the cell membrane, resulting in no net movement of molecules.

Front

What role do vacuoles play in a cell?

Back

Vacuoles store food, water, and waste products within the cell.

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 until evenly distributed.