Cell Transport

Front

What is osmosis?

Back

Osmosis is a form of passive transport where water molecules move across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What type of transport is exocytosis?

Back

Exocytosis is a form of active transport that involves the movement of materials out of a cell by vesicles fusing with the cell membrane.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which molecules move across the cell membrane from an area of high concentration to an area of low concentration with the help of carrier proteins.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from an area of low concentration to an area of high concentration, requiring energy.

Front

What is endocytosis?

Back

Endocytosis is an active transport process where cells engulf substances from the outside environment, bringing them into the cell.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.

Front

What is the role of carrier proteins in facilitated diffusion?

Back

Carrier proteins assist in the transport of specific molecules across the cell membrane, allowing them to move from high to low concentration.

Front

What is the significance of concentration gradients in cell transport?

Back

Concentration gradients drive the movement of substances across cell membranes, with molecules moving from areas of high concentration to low concentration in passive transport.

Front

What is the process of osmosis specifically related to water?

Back

Osmosis specifically refers to the movement of water molecules through a semipermeable membrane, balancing solute concentrations on both sides.

Front

What are vesicles in the context of cell transport?

Back

Vesicles are small membrane-bound sacs that transport materials within the cell and to the cell membrane for exocytosis.