Biology Cell Transport

Front

What does it mean for a membrane to be Selectively (or Semi) Permeable?

Back

It means that some molecules can cross the membrane while others cannot.

Front

What is Exocytosis?

Back

Exocytosis is the process by which particles are removed from a cell by being pushed out.

Front

What happens to water when a cell is placed in a hypertonic solution?

Back

Water moves from the inside of the cell to the solution.

Front

What type of cell transport is represented by endocytosis?

Back

Endocytosis is the process where cells engulf substances from their environment.

Front

What is the function of the cell membrane?

Back

The cell membrane helps maintain homeostasis by controlling what substances may enter or leave cells.

Front

Define Osmosis.

Back

Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is Passive Transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically along the concentration gradient.

Front

What is the difference between Endocytosis and Exocytosis?

Back

Endocytosis is the process of taking substances into the cell, while Exocytosis is the process of expelling substances from the cell.

Front

What is a Hypertonic Solution?

Back

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

Front

What is a Hypotonic Solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to move into the cell.