TMJC 2023 H2 P3 Ans

H2 BIOLOGY 9744/03 Paper 3 Long Structured and Free-response Questions 18 September 2023 2 hours SUGGESTED ANSWERS No Oh dear, where did I go wrong?  Affected Questions I can improve by doing the following!  1 I don’t understand what the question wants from me. • Identify topic(s) related to the question. • Analyse the preamble and/or diagram carefully. • Unpack the command term (e.g. explain, describe) 2 I don’t know / can’t remember the conceptual facts. • Review my study techniques – what is effective and what is not? • Approach my tutor / peers for advice. 3 I did not give the essential keywords / wrong keyword. • Reflect on why the missing words / phrases were essential in addressing the question. 4 My answers are incomplete / not of enough depth. 5 I misinterpreted the questions / data, hence wrote the wrong answer / out-of- point answer • Read the preamble carefully. • Paraphrase the question in my own words. • Unpack the command term (e.g. explain, describe) 6 I did not contextualize my answers to the question. That is, I did not make use of the information in the preamble / stimulus / figure. • When the question revolves around a specific example, use the contextual information to craft the answers. 7 I did not cite data / I did not include the units for data / did not cite meaningful data for both axes. • Cite complete data: both x & y axes, with units. • Examine the trend of the graph. If appropriate, divide the graph into ≥ 2 parts for meaningful citation of data. 8 I did not organize my answers properly, especially for comparison questions / essay questions. • For comparison questions, ensure each sentence focuses on one feature. Use comparative words (e.g. but, whereas, while) • For essay questions, organise each major idea in a separate paragraph. 9 I did not manage to attempt the question due to insufficient time. • Look through the whole paper and first attempt questions I am more confident in. • Be concise & succinct. Do not write excessively. • When I am stuck at a question, move on. 10 I was not able to apply the conceptual facts to this kind of ‘suggest’ questions. • Identify topic(s) that the question is related to and draw links to the concept. • Examine any hint(s) / information in the preamble to suggest biologically sensible ideas. TAMPINES MERIDIAN JUNIOR COLLEGE JC2 PRELIMINARY EXAMINATION

2 Tampines Meridian Junior College 2023 JC2 Preliminary Examination H2 Biology Section A Answer all questions in this section. QUESTION 1 (a) The pituitary gland is located in the brain of mammals. Prolactin, a hormone from the pituitary gland, stimulates cells in the mammary glands of female mammals so that the cells are able to secrete milk. (i) State the potency of the stem cells that produce pituitary cells. [1]