BPGHS_2018_Bio_Prelim_P2_QP.pdf

Name of Candidate: _____________________ ( ) Class: _________ Calculator Model: This paper consists of 17 printed pages. BUKIT PANJANG GOVERNMENT HIGH SCHOOL Preliminary Examination 2018 SECONDARY 4 Express BIOLOGY Paper 2 6093/02 Date: 13 August, 2018 Duration: 1hr 45 min Time: 1115 – 1300 hr READ THESE INSTRUCTIONS FIRST Write your name, class and register number on all the work you hand in. Write in dark blue or black pen. You may use a pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. Section A [50 marks] Answer all questions. Write your answers in the spaces provided on the Question Paper. Section B [30 marks] Answer all questions. Write your answers in the spaces provided on the Question Paper. Electronic calculators may be used. You are advised to spend no longer than one hour on Section A and no longer than 45 minutes on Section B. The total number of marks is given in brackets [ ] at the end of each question or part question. [Turn over For Examiner’s Use Section A / 50 Section B / 30 Total / 80 www.KiasuExamPaper.com 76

2 ©BPGHS 2018 6093 / SEC 4 EXP BIO PRELIM / P2 / 18 [Turn over Section A Answer all questions. Write your answers in the spaces provided. 1 Fig. 1.1(a) shows a flower very shortly after it has opened and Fig. 1.1(b) shows the same flower several days later. Fig. 1.1(a) Fig. 1.1(b) (a) On Fig. 1.1(b), label a filament and a sepal. [2] (b) State two features of the flower in Fig. 1.1(a) that could have attracted the insect. 1. ………..………………………………………………………………………………............... 2. …..………………………………………………………………………………………….. [2] Using information from Fig. 1.1(a) and Fig. 1.1(b), (c)(i) explain why flowers of this plant rarely self-pollinate, and ….…………………………………………………………………………………………………… …………...………………………………………………………………………………………….. ….…………………..……………………………………………………………………………….. …..………………………….…………………………………………………………………….[2] www.KiasuExamPaper.com 77

3 ©BPGHS 2018 6093 / SEC 4 EXP BIO PRELIM / P2 / 18 [Turn over (ii) suggest how the insect brings about pollination in this species of plant. ….…………………………………………………………………………………………………… ….…………………………………………………………………………………………………… ….…………………………………………………………………………………………………… ….…………………………………………………………………………………………………… ….…………………………………………………………………………………………………… …..…………………………………………………………………………………………….… [3] [Total:9] www.KiasuExamPaper.com 78

4 ©BPGHS 2018 6093 / SEC 4 EXP BIO PRELIM / P2 / 18 [Turn over 2 Fig. 2.1 shows the blood groups of the members of two families. Fig. 2.1 The alleles responsible for blood groups are IA, IB and IO. (a) State the term used to describe the relationship between alleles IA and IB. ……………………………………… [1] (b) Identify, by number, which one of the children had been adopted by their family and could not be the genetic offspring of the parents. Explain your answer. child number ………………………….. expl