3 [7] M14. (a) (cell) wall (cell) membrane cytoplasm vacuole for 1 mark each 4 (b) (i) A (ii) B for 1 mark each 2 (c) diffusion (reject osmosis) for 1 mark 1 [7] M15. (a) (i) any two from: more milk • (about) 50 litres milk compared to (up to) 20 litres / 30 litres more ignore costs / profit electricity produced • farmers can keep more cows in the • answers must refer to number of cows and space 2 (ii) any two from: less stress for cow or not cruel to cow or cows have • freedom to move around ignore references to ethical / unnatural without qualification crops fertilised • less disease or disease not as easily spread • 2 (b) more 1 less
3 [7] M14. (a) (cell) wall (cell) membrane cytoplasm vacuole for 1 mark each 4 (b) (i) A (ii) B for 1 mark each 2 (c) diffusion (reject osmosis) for 1 mark 1 [7] M15. (a) (i) any two from: • more milk (about) 50 litres milk compared to (up to) 20 litres / 30 litres more ignore costs / profit • electricity produced • farmers can keep more cows in the answers must refer to number of cows and space 2 (ii) any two from: • less stress for cow or not cruel to cow or cows have freedom to move around ignore references to ethical / unnatural without qualification • crops fertilised • less disease or disease not as easily spread 2 (b) more 1 less
year-9-revision-pack.docx