2021 EJC Promo JC1 P2 Bio (A)

©EJC 2021 9744/J1H2/Promo/2021 [Turn over EUNOIA JUNIOR COLLEGE JC1 Promotional Examinations 2021 General Certificate of Education Advanced Level Higher 2 CANDIDATE NAME ANSWER KEY (with Examiners’ Comments) CIVICS GROUP 2 1 - REGISTRATION NUMBER H2 Biology Paper 2 Structured & Free Response Questions 9744 05 October 2021 2 hours Additional Materials: 12-page Answer Booklet. READ THESE INSTRUCTIONS FIRST Write your name, civics group and registration number in the spaces at the top of this page. Write in dark blue or black pen. You may use an HB pencil for any diagrams or graphs. Do not use paper clips, highlighters, glue or correction fluid. Section A Answer all questions in the spaces provided on the Question Paper. Section B Answer all questions in the 12-page Answer Booklet. The use of an approved scientific calculator is expected, where appropriate. You may lose marks if you do not show your working or if you do not use appropriate units. The number of marks is given in brackets [ ] at the end of each question or part question. For Examiner’s Use Section A 1 8 2 8 3 8 4 8 5 10 6 10 7 8 Section B 8 20 Total 80

2 9744/J1H2/Promo/2021 READ THIS FIRST! 1. The biology teachers have spent time writing the examiners’ comments in this answer key, as well as the individual comments on your scripts. Do take time to read through them carefully, and note the common mistakes, misconceptions and phrases to avoid. This is an important part of learning. 2. As you read the answer key, note about any questions that you may have, and clarify them with your respective tutor as soon as possible. 3. It is not about matching words in your answer to the mark scheme. Your answer should be conceptually sound; having all the words doesn’t necessarily make your answer correct. E.g. enhancer is a gene, it codes for activators which binds to enhancers to increase rate of reaction by promoting formation of transcription initiation complex. The above statement “hits all the right words” but it is conceptually wrong, so no mark will be awarded. 4. Different questions have different requirements. You will need to apply your conceptual understanding and keywords based on the context of the question. It is not one size fits all. 5. You should never have the mindset that content / concepts tested will not come out again. You are preparing for the A-Level Examinations, all learning leading up to it should be retained (and not forgotten). 6. As part of learning, you should analyse your papers and find out what are your gaps: i. Content ii. Concepts iii. Q uestion analysis skills iv. Answering techniques and writing skills 7. It is important to reflect on this learning experience, consolidate your learning and build on your learning resources (notes, tutorials