Unit 2 Cell Transport

Front

What is a hypotonic solution?

Back

A solution that causes a cell to swell and potentially burst due to a lower concentration of solutes outside the cell compared to inside.

Front

What is homeostasis?

Back

The need of an organism to stay stable by regulating internal conditions despite external changes.

Front

What is active transport?

Back

A process that requires extra energy (ATP) to move materials into or out of the cell against the concentration gradient, from low to high concentration.

Front

What is a phospholipid bilayer?

Back

A double layer of phospholipids that makes up the cell membrane, providing structure and selectively allowing substances to enter or exit the cell.

Front

True or False: The cell membrane is selectively permeable.

Back

True, it is picky about what goes in and out.

Front

What is passive transport?

Back

The movement of substances across a cell membrane without the use of energy, typically from high to low concentration.

Front

What is exocytosis?

Back

The process by which a cell expels materials in vesicles that fuse with the cell membrane.

Front

What is endocytosis?

Back

The process by which a cell takes in materials by engulfing them in a vesicle.

Front

What is a hypertonic solution?

Back

A solution that causes a cell to shrink due to a higher concentration of solutes outside the cell compared to inside.

Front

What is isotonic solution?

Back

A solution where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.