Movement Into and out of cells | 3

Question 1

Diffusion

Answer 1

Net movement of particles along the concentration gradient from a region of higher concentration to a region of lower concentration as a result of random movement

Question 2

Factors of diffusion

Answer 2

Surface area
Temperature
Concentration gradient
Distance

Question 3

Osmosis

Answer 3

Diffusion of water through a partially permeable membrane , from a dilute solution to a concentrated solution

From a region of high water potential to low water potential

Question 4

Turgor pressure / turgid

Answer 4

When water is pressing onto the outside of a cell

Question 5

Plasmolysis

Answer 5

When there is too little water in the cell , cell membrane peels from the cell wall

Question 6

how do plants get supported because of osmosis

Answer 6

It maintains the pressure of water in plant cells to support the plant

Question 7

Active transport

Answer 7

Involves the movment of substances against their concentration gradient

Usage of energy from respiration

Question 8

What do protien carrier molecules do

Answer 8

They transport substances across the membrane during active transport

Question 9

Why is the upkeep of water potential important

Answer 9

Without it , cells could die due to becoming flaccid and animal cell could be in danger of bursting because of excess turgor pressure and no cell wall