Master GCSE Biology

MS1

- A group of similar cells working together to carry out a specific function (1)

MS2

- Epithelial (1)

- Connective (1)

- Muscle (1)

- Nervous (1)

MS3

- Emulsification is the breaking down of large fat droplets into smaller ones (1)

- Increases surface area for enzymes to work (1)

- Bile produced by the liver acts as an emulsifier (1)

MS4

- Away from the heart (1)

- Carry oxygenated blood away from the heart (1)

MS5

- When guard cells are turgid, stomata open (1)

- When guard cells are flaccid, stomata close (1)

MS6

- The left ventricle has thicker walls than the right ventricle (1)

- Left ventricle pumps oxygenated blood to the body (1)

- Right ventricle pumps deoxygenated blood to the lungs (1)

- Valves prevent backflow of blood (1)

MS7

- Build-up of fatty substances and calcium in the walls of arteries (1)

- Makes arteries narrower (1)

MS8

- Statins inhibit the production of cholesterol (1)

- Lower levels of LDL (bad) cholesterol (1)

- May reduce the risk of atherosclerosis (1)

MS9

- Xylem vessels have hollow, dead cells (1)

- Water and mineral ions move up by capillary action and active transport (1)

- Transpiration helps pull water up through the xylem (1)

MS10

- Translocation moves dissolved sugars from leaves to other parts of the plant (1)

- Occurs in phloem vessels (1)

- Active transport used to move sugars against a concentration gradient (1)