Download Answers and commentary (A-level) : Paper 3 essay and more Schemes and Mind Maps Biology in PDF only on Docsity!

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Specimen answer 1

June 14 BIOL5 10b

**Senior examiner annotations

Item Page

Mark/ symbol Annotation** 1 10 2 0 Little introduction, no penalty. 2 10 2 0 Good comment. 3 10 2 0 Ignore energy generated. 4 10 2 0 Shows movement and use of energy, addresses title. 5 10 3 0 References to energy change here. 6 10 3 0 A - Not quite enough on ATP. 7 10 3 0 M starts. 8 10 4 0 M^ -^ Good theory but not enough energy change. 9 10 4 0 Not related to energy, therefore irrelevant. 10 10 4 0 N - Nerves not linked to theme, needs link to ATP. 11 10 5 0 Ecology, only basic spec knowledge. 12 10 5 0 Ec - Some element of why energy not transferred. Needs ref to food as substrate for respiration. 13 10 6 0 Ignore short concluding paragraph. 14 10 6 20 A-level content in number of topics (4/5) and links to theme. One irrelevant topic. Relational - awarded 20 marks.

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Specimen answer 2

June 14 BIOL5 10a

**Senior examiner annotations

Item Page

Mark/ symbol Annotation** 1 10 2 0 H – Concept only. 2 10 2 0 Re-stating title only. 3 10 2 0 C – Some knowledge but very low level and not addressing title. Not quite enough detail. 4 10 2 0 Significant error.^ Sodium^ –^ not ions. Channels let sodium ions in but they are actively transported out. 5 10 3 0 Lungs mentioned. Not enough to credit L yet. 6 10 3 0 No mention of water potential. Water concentration is poor terminology. 7 10 3 0 Cholera = D. Very little detail so not enough. 8 10 3 0 Chloride ions released but no indication of where to. 9 10 3 0 Reference to Nerves = N. 10 10 4 0 Entire paragraph about photosynthesis is irrelevant. 11 10 4 0 G – But superficial. 12 10 4 0 W^ –^ Passage of water through a plant. Mention only, very superficial. 13 10 5 0 Continuation of W but no additional relevant detail. 14 10 5 0 Continuation of W but no additional relevant detail. Combined with earlier G now just about A-level content. 15 10 5 0 G – Superficial. 16 10 6 0 L – Mention only not enough. 17 10 6 0 Could be irrelevant but candidate is trying to link to title so ignore. 18 10 6 0 T – A bit superficial but just enough. 19 10 7 15 A-level content in some topics but no real attempt to relate to theme. Lacking detail in some topics. One irrelevant topic area. Multistructural - awarded 15 marks.

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Specimen answer 3

June 14 BIOL5 10b