Movement In And Out Of Cells

Question 1

Active transport:

Answer 1

the movement of substances from an area of low concentration to an area of high concentration. Requires stop energy and a carrier protein in the cell membrane as it travels against the concentration gradient.

Question 2

Diffusion

Answer 2

The movement of cells from an area of high concentration to an area of low concentration

Question 3

Osmosis

Answer 3

The movement of water molecules from an area of high concentration to an area of low concentration across a partially permeable membrane

Question 4

Crenation

Answer 4

If the cell loses too much water it becomes shrivelled up

Question 5

Plasmolysed

Answer 5

There is more water inside the cell. Therefore water will leave the cell by osmosis. This causes the cell membrane to pull away from the cell wall. The cell becomes soft(flaccid)

Question 6

Lysis

Answer 6

There us more water outside the cell than inside the cell. Therefore water rushes into the cell by osmosis. Causing it to swell up and possibly burst.(because there is no cell wall)

Question 7

Turgid

Answer 7

There is more water outside the cell by osmosis. The cell will swell up. The cell becomes firm