T3W6 [USS] S4 BIO PRELIMS 2023 P2 QP

Sec 4E Biology P2 Page 1 of 20 USS Prelim Exam 2023 Name: CCA Home Group: Learning Group: Index Number: UNITY SECONDARY SCHOOL Preliminary Examination 2023 Secondary Four (Express) BIOLOGY Paper 2 6093/02 13 September 2023 1 hour 45 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your name, class and index number on all the work you hand in. Write in dark blue or black pen. You should use a soft pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. Section A Answer all questions in the spaces provided on the Question Paper. Section B Answer all three questions. The last question is in the form of either/or. 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 number of marks is given in brackets [ ] at the end of each question or part question. This document consists of 20 printed pages, including this cover page.

Sec 4E Biology P2 Page 2 of 20 USS Prelim Exam 2023 Section A Answer all questions. Write your answer in the spaces provided. 1 A student investigated the volume of water lost in one hour by different species of plants at different temperatures. Fig. 1.1 shows the results. Fig. 1.1 (a) Compare the volume of water loss in species A and species B. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ...................................................................................................................................... [3]

Sec 4E Biology P2 Page 3 of 20 USS Prelim Exam 2023 (b) The investigation was repeated with increased humidity. The temperature was cool. Draw one additional bar on Fig. 1.1, for species B only, to show the expected result. [2] (c) State the name of the vessels that transport water through a plant. ...................................................................................................................................... [1] [Total: 6]

Sec 4E Biology P2 Page 4 of 20 USS Prelim Exam 2023 2 Fig. 2.1 shows two photomicrograph