Christ Church Pure Biology Prelim 2024 Paper 2

CHR 2024 / Biology 6093/02/O/24 [Turn over ok CHRIST CHURCH SECONDARY SCHOOL 2024 PRELIMINARY EXAMINATION SECONDARY FOUR EXPRESS Biology 6093/02 Paper 2 22 August 2024 1 hour 45 minutes No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your name, index number and class in on all the work you hand in. You may use an HB pencil for any diagrams, graphs, tables or rough working. Write in dark blue or black pen. Do not use staples, paper clips, highlighters, glue or correction fluid. The use of an approved scientific calculator is expected, where appropriate. You may lose marks if you do not show your working or if you do not use appropriate units. Section A Answer all questions. Write your answers in the spaces provided on the question Paper. Section B Answer one question. Write your answers in the spaces provided on the question Paper. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question. _____________________________________________________________________ This document consists of 20 printed pages. For Examiner’s Use Section A Section B Total CANDIDATE NAME CLASS CENTRE NUMBER S INDEX NUMBER

2 CHR 2024 / Biology 6093/02/O/24 Section A Answer all questions in the spaces provided. 1 Fig. 1.1 shows the reproductive organs of a man who has had part X cut and tied in a surgery known as vasectomy. Fig. 1.1 (a) State two products of organ G. 1 ………………………………. 2 ………………………………. [2] (b) Name part X and explain how cutting and tying of part X means for the fertility of this man. X ………………………………. [1] explanation ……………………………………………………………………………... ……………………………………………………………………………... ……………………………………………………………………………... [2] X G

3 CHR 2024 / Biology 6093/02/O/24 [Turn over (c) A patient was diagnosed with varicocele, a condition characteri sed by the enlargement of veins within the scrotum due to malfunctioning valves inside the testicular veins. Suggest and explain how varicocele might affect the sperm production and quality. …………………………………………………………………………………………………. …………………………………………………………………………………………………. …………………………………………………………………………………………………. ………………………………………………………………………………………………….