Cell Transport Classwork

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, there is less solute outside of the cell, causing water to move into the cell, which results in the cell swelling.

Front

Which part of the cell membrane is hydrophobic?

Back

The fatty acid tails of phospholipids are hydrophobic.

Front

What is the process by which water molecules move from a high concentration to a low concentration?

Back

This process is called osmosis.

Front

What is active transport?

Back

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

Front

What is passive transport?

Back

Passive transport is the movement of materials across a cell membrane without the use of energy, following the concentration gradient.

Front

Define osmosis.

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane.

Front

What is the role of transmembrane proteins in the cell membrane?

Back

Transmembrane proteins facilitate the transport of substances across the cell membrane.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of solute particles from an area of high concentration to low concentration, while osmosis specifically refers to the movement of water.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them in a vesicle.

Front

What is exocytosis?

Back

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