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Transcript
1. (a) cells if more than one box is ticked, award no mark 1 (b) tail (c) testis or testicle accept plurals 1 (d) fertilisation if more than one box is ticked, award no mark 1 1 [4] 2. (a) (i) oxygen accept ‘O2’ 1 do not accept ‘air’ (ii) any one from glucose digested food vitamins minerals water 1 accept ‘sugar’ accept ‘amino acids’ or ‘fatty acids’ or ‘glycerol’ accept ‘food’ or ‘nutrients’ accept a named vitamin accept a named mineral (b) any one from 1 it prevents oxygen getting to the accept ‘it stops oxygen’ organ it prevents food getting to the organ it stops blood getting to the organ accept ‘it blocks the blood vessel’ accept ‘it causes a heart attack’ or ‘a stroke’ or ‘thrombosis’ accept ‘it stops the flow of blood’ or ‘it stops blood flowing around the body’ ‘you would die’ is insufficient (c) any one from it stops bleeding it prevents bacteria or viruses from entering accept ‘microbes’ or ‘germs’ for bacteria these less precise terms are accepted if the answer indicates that the scab acts as a barrier ‘to keep it clean’ is insufficient accept ‘it stops dirt getting in’ accept ‘it stops infection’ accept ‘it stops disease’ ‘it stops diseases getting in’ is insufficient 1 [4] 3. lung accept ‘lungs’ heart kidney 1 1 accept ‘kidneys’ 1 [3] Idsall School 1 4. (a) (b) (i) chloroplast 1 (ii) chloroplast answers may be in either order 1 cell wall accept ‘wall’ do not accept ‘vacuole’ 1 part of the cell chloroplast 1 nucleus 1 cell wall accept ‘wall’ 1 cell membrane accept ‘membrane’ 1 [7] 5. accept ‘blood cell’ or ‘erythrocyte’ (a) red blood cell (b) (i) B 1 (ii) A 1 (i) testis or testicle 1 (ii) leaf (c) accept ‘stem’ or ‘sepal’ or ‘stalk’ or ‘any green part’ 1 1 [5] 6. (a) (b) A: membrane 1 B: nucleus 1 C: cytoplasm 1 any two from cell wall chloroplasts large vacuole 2 accept 'chlorophyll' accept 'vacuole'' accept 'starch grain' [5] 7. (a) (b) Idsall School the leaf answers must be in the correct order accept ‘a green part’ accept ‘stem’ or other named green part 1 root accept ‘root hair’ 1 cell wall 1 2 (c) (d) (i) A (ii) to control the cell (i) any one from 1 accept ‘contains genetic information’ or ’controls the production of enzymes’ 1 1 it has no chloroplasts or no chlorophyll (ii) respiration 1 if more than one box is ticked, award no mark [7] 8. (a) cell wall answers may be in either order 1 chloroplast accept ‘vacuole’ do not accept ‘X’ 1 (b) nucleus do not accept ‘chromosomes’ 1 (c) chloroplast do not accept ‘chlorophyll’ 1 (d) vacuole accept ‘sap’ accept the correct label written within the vacuole on the diagram or next to label X 1 (e) near the upper surface of a leaf if more than one box is ticked, 1 award no mark [6] 9. (a) answers may be in either order cell wall chloroplast (b) (c) (i) photosynthesis (ii) it decreases glucose any one from for energy for respiration 1 accept ‘starch grains' 1 1 accept 'it gets less' or ‘they are used up' do not accept ‘they die out' 1 accept ‘sugar' 1 1 [6] Idsall School 3