PLMGS 2016 Bio Prelim P1 QP

BIOLOGY (SPA) 5158 Paper 1 Multiple Choice 19 August 2016 Additional Materials: Multiple Choice Answer Sheet Redox Reactions 1 hour READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name and index number on all the work you hand in. There are forty multiple-choice questions on this paper. Answer all questi ons. 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. 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. ___________________________________________________________________ This paper consists of 20 pages including this cover page CANDIDATE NAME CLASS CLASS INDEX NUMBER CENTRE NUMBER INDEX NUMBER Paya Lebar Methodist Girls’ School (Secondary) Preliminary Examination 2016 Secondary 4 Express 488 trendyline___________________________________________________________________________________________ This paper consists of This paper consists of 202 pages including this cover pagpages including this cover pag d

2 1 The diagram shows part of a leaf in cross-section. Structures X and Y are both part of the same A cell.・ B organ.・ C tissue. D vessel. 2 The diagram shows a male gamete. Which term describes the level of organisation of this gamete? A cell B organ・ C organism D tissue 489 trendyline

[Turn over 3 3 The diagram shows part of a plant root in the soil. The root is absorbing water. At which labelled point is the water potential highest? 4 Which statement describes active transport? A t h e m o v e m e n t o f i o n s t h r o u g h a c e l l m e m b r a n e , r e l e a s i n g e n e r g y B t h e m o v e m e n t o f i o n s t h r o u g h a c e l l m e m b r a n e , u s i n g e n e r g y C t h e m o v e m e n t o f w a t e r t h r o u g h a c e l l m e m b r a n e , r e l e a s i n g e n e r g y D t h e m o v e m e n t o f w a t e r t h r o u g h a c e l l m e m b r a n e , u s i n g e n e r g y 5 A student cuts out four pieces of carrot root of equal size. The pieces are treated as shown in the diagram, and then left for two hours. After two hours, which piece of carrot will be the smallest? boiled carrot A sugar solution boiled carrot B water fresh carrot C sugar solution fresh carrot D water 490 trendyline

4 6 Some organisms live at the bottom of the seas where it is very dark. To synthesise glucose, they use energy from chemicals in very hot water that comes out of volcanoes. What is a distinguishing feature of these organisms? A Their enzymes are easily denatured by heat. B They do not need carbon dioxide. C They do not need to be green. D They obtain energy only as carnivor