2017 HCI H2 Biology Prelims Paper 1 Questions

© Hwa Chong Institution 2017 9744 H2 Biology / JC2 Preliminary Examinations / Paper 1 HWA CHONG INSTITUTION JC2 Preliminary Examinations Higher 2 CANDIDATE NAME CT GROUP 16S7___ CENTRE NUMBER INDEX NUMBER BIOLOGY Paper 1 Multiple Choice Questions Additional Materials: Optical Mark Sheet 9744/01 21 September 2017 1 hour INSTRUCTIONS TO CANDIDATES 1. Write your name and CT group in the spaces provided at the top of this cover page. 2. Fill in your particulars on the Optical Mark Sheet. Write your NRIC number and shade accordingly. 3. There are thirty questions in 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 Optical Mark Sheet. 4. At the end of the paper, you are to submit only the Optical Mark 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 2017 9744 H2 Biology / JC2 Preliminary Examinations / Paper 1 1 The diagram shows a single-celled organism with structures P to S labelled. Which statement(s) correctly describes the structures P to S? 1 Structure P is double membranous with infoldings called cisternae and functions in metabolism of glucose. 2 Structure Q is double membranous with flattened sacs called cristae and functions to modify and package products of the endoplasmic reticulum. 3 Structure R is composed of phospholipids, proteins and carbohydrates and functions to prevent cell lysis. 4 Structure S is composed of microtubules and provides cell motility. A 3 only B 4 only C 1 and 4 D 2 and 3 2 Viruses are a major class of microorganisms, but they are not cells. Which statement about viruses supports the view that viruses are not cells? 1 Viruses are very small in size. 2 Viruses are only able to replicate in a host cell. 3 Viruses have no metabolic activities of their own. 4 Viruses have protein capsids. 5 Viruses contain only a single form of nucleic acid. 6 Viruses can evolve by genetic recombination. A 1, 2 and 3 B 1, 5 and 6 C 2, 3 and 5 D 3, 4 and 6 P Q R S

3 © Hwa Chong Institution 2017 9744 H2 Biology / JC2 Preliminary Examinations / Paper 1 3 The graphs show the rate of uptake of suga rs by a culture of animal cells under different conditions. Which statements correctly describe the uptake of sugars by the animal cells? 1 3-carbon sugar passes through the phospholipid bilayer down a