Empa Revision Booklet

Topics: Carbon dioxide, Oxygen, Mark Pages: 9 (2025 words) Published: April 26, 2013
General Certificate of Education

Unit 6T A2 Investigative Skills Assignment


Marking Guidelines
2010 examination – June series


Biology - AQA GCE Unit 6T/P/Marking Guidelines/2010 June series

Marking Guidelines are prepared by the Principal Moderator and considered, together with the relevant questions, by a panel of subject teachers.

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Biology - AQA GCE Unit 6T/P/Marking Guidelines/2010 June series

Guidance for teachers marking Biology ISAs
General principles In general, you are looking for evidence that the candidate knows and understands the point required by the Marking Guidelines. It is important to mark what the candidate has written, not to assume what may have been intended. It is also important to make sure that a valid point is in the correct context. Individual words or phrases where the overall answer does not apply to the question asked should not be credited. Conventions The following conventions are used in the Marking Guidelines. A semicolon (;) separates each marking point An oblique stroke (/) separates alternatives within a marking point Underlining of a word or phrase means that the term must be used For example anaphase, the term must appear For example ...... and ........, both items must be present for a mark Brackets are used to indicate contexts for which a marking point is valid. This context may be implied by a candidate's answer 'Accept' and 'reject' show answers which should be allowed or not allowed. Additional instructions are shown in the final column ‘Max’ refers to the maximum mark that can be awarded for a particular question or part question. The Marking Guidelines show the minimum acceptable answer(s) for each marking point. A better, more detailed, or more advanced answer should always be accepted, provided that it covers the same key point. Marking Guidelines cannot give every possible alternative wording - equivalent phrasing of answers should be accepted. For example ‘the water potential is higher in the cells’ is equivalent to ‘the water potential is less negative in the cells’. It is, however, important to be sure that the minimum requirement of the Marking Guidelines is met and that the point is made unambiguously. Converse answers are normally acceptable, unless the wording of the question rules this out. For example, 'the water potential is lower in the solution’ is an acceptable converse of ‘the water potential is higher in the cell’. Very occasionally, a candidate will give a biologically correct answer that is not covered in the Marking Guidelines. If it is equivalent in standard to the Marking Guideline answers, it should be credited. In this case, write the word ‘valid’. All marking points are awarded independently, unless a link between points is specified in the Marking Guidelines.


Biology - AQA GCE Unit 6T/P/Marking Guidelines/2010 June series

The mechanics of marking Always mark in red ink. Make sure that some red ink appears on every page on which the candidate has written. For each mark awarded, put a tick close to the marking point. In all cases, a tick should equal one mark and the total number of ticks...
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