HCI 2023 JC2 9744 H2 Bio Prelim P1 QP (Sharing)

© Hwa Chong Institution 2023 9744 H2 Biology / JC2 Preliminary Examinations / Paper 1 HWA CHONG INSTITUTION JC2 Preliminary Examinations Higher 2 CANDIDATE NAME CT GROUP 22S7___ CENTRE NUMBER INDEX NUMBER BIOLOGY Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet 9744/01 20 September 2023 1 hour INSTRUCTIONS TO CANDIDATES 1. Write your name, CT group, Centre number and index number in the spaces provided at the top of this cover page. 2. Fill in your particulars on the Multiple Choice Answer Sheet. Write your NRIC number and shade accordingly. 3. There are thirty questions on this paper. Answer all questions. For each question, there are four possible answers, A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet. 4. At the end of the paper, you are to submit only the Answer Sheet. INFORMATION FOR CANDIDATES Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. The used of an approved scientific calculator is expected, where appropriate. This document consists of 24 printed pages.

2 © Hwa Chong Institution 2023 9744 H2 Biology / JC2 Preliminary Examinations / Paper 1 1 Clostridium tetani is the bacterium that causes the disease tetanus. Symptoms of the disease are caused by the release of a toxin, tetanospasmin. The diagram shows a transmission electronmicrograph of cells of Clostridium tetani. Which visible features suggest it is a prokaryote and not a eukaryote? 1 The presence of a cell wall surrounding the cell that is oval in shape. 2 The nucleoid region is not enclosed by a nuclear envelope. 3 The lack of membranous organelles within the cell. 4 The presence of 70S ribosomes that covered the cisternae of rough endoplasmic reticulum. A 1 and 2 only B 1 and 4 only C 1, 2 and 3 only D 2 and 3 only

3 © Hwa Chong Institution 2023 9744 H2 Biology / JC2 Preliminary Examinations / Paper 1 2 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number. 1 mRNA passes through to the ribosome 2 produces the mitotic spindle during cell division 3 packaging of hydrolytic enzymes that will remain in the cell The appearances were listed by letter. V membranes which surround an enclosed inner cavity W non-membrane-bound, spherical structures X a double membrane interspersed with pores Y non-membrane-bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered function with the appearance of the cell structure? 1 2 3 A V W Y B V Y Z C X W Y D X Y Z

4 © Hwa Chong Institution 2023 9744 H2 Biol