Active Transport

Question 1

Active Transport:

Answer 1

Uses carrier proteins move substances across the membrane
- Materials move up concentration gradient: from low to high solution concentrations
- Concentration becomes unbalanced on either side of the membrane
- Energy (ATP) is needed by the cell to move materials

Question 2

Bulk Transport:

Answer 2

When extremely large substances need to be moved across the cell membrane
- Endocytosis and exocytosis

Question 3

Endocytosis:

Answer 3

Bulk transport of materials INTO the cell
- When materials enter the cell without crossing the membrane
- Membrane folds around the particles and forms new vacuole in cell
- Can be split into phagocytosis and pinocytosis

Question 4

Phagocytosis

Answer 4

The bulk transport of solid materials into the cell

Question 5

Pinocytosis

Answer 5

The bulk transport of materials that are in a solution

Question 6

Exocytosis

Answer 6

Vesicle fuse to the cell membrane to release contents (waste/cell products), reverse of endocytosis