Active transport

Question 1

Active Transport

Answer 1

Movement of materials across the cell membrane that does require energy (ATP)
Low to high concentration

Question 2

How ATP moves materials

Answer 2

Energy binds specific materials to the carrier protein and ‘‘open’ and ‘close’ the protein

Question 3

Using ATP to move materials…

Answer 3

Uses energy
Can be controlled and removes waste but gets nutrients

Question 4

Endocytosis

Answer 4

Used to transport materials into the cell
Cell membrane engulfs an external substance then pinches off forming a vesicle inside the cell

Question 5

Three types of endocytosis

Answer 5

Pinocytosis - engulfing a liquid
Phagocytosis - engulfing a solid (phagosome which binds to lysosome)
Receptor-mediated - protein receptors trigger endocytosis of a very specific molecule

Question 6

Exocytosis

Answer 6

Used to transport materials out of the cell - gets rid of waste
Vesicle comes up to cell membrane, phospholipids rearrange and membranes fuse releasing the contents of the vesicle