KCPSS_2024_4E_SciBio_Prelim_P1

1 KCPSS.4E/NA(SBB).SCIBIO.P1.PRELIM.2024 [Turn Over KUO CHUAN PRESBYTERIAN SECONDARY SCHOOL 2024 PRELIMINARY EXAMINATION Secondary 4 Express / 4 Normal Academic (SBB) NAME CLASS REG. NO SCIENCE (CHEMISTRY/BIOLOGY) 5088 / 01 Paper 4 Biology Paper 1: 1 hour Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your class, index number and name on all the work you hand in. Write in dark blue or black pen on both sides of the paper. You may use an HB pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, 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. The number of marks is given in brackets [ ] at the end of each question or part question. FOR EXAMINER’S USE Total ………….……...…….....…... Parent’s signature/ Date

2 KCPSS.4E/NA(SBB).SCIBIO.P1.PRELIM.2024 [Turn Over 1 The diagram shows a typical plant cell after being placed in a concentrated salt solution for ten minutes. Which numbered structure(s) is / are partially permeable? A 1 only B 2 only C 1 and 2 only D 1 and 3 only 2 The table below shows the comparison between a red blood cell and a root hair cell. feature number feature red blood cell root hair cell 1 transport oxygen yes yes 2 cytoplasm present no yes 3 large surface area to volume ratio yes yes 4 nucleus present no yes Which comparisons are correct? A 1 and 2 only B 1, 2 and 3 only C 2, 3 and 4 only

3 KCPSS.4E/NA(SBB).SCIBIO.P1.PRELIM.2024 [Turn Over D 3 and 4 only 3 The diagram shows an animal cell. Which labelled parts show a mitochondrion and a ribosome? mitochondrion ribosome A R P B R S C I P D I S 4 The cell wall of a plant cell is removed using an enzyme. What would happen if this cell were then placed in distilled water? A It would take longer for the cell to become turgid. B The cell would become plasmolysed. C The cell would become smaller as water moves out. D The cell would burst as water moves into it. P Q T R S

4 KCPSS.4E/NA(SBB).SCIBIO.P1.PRELIM.2024 [Turn Over 5 The diagram shows an experiment. Why did the starch suspension change colour? A Iodine molecules have diffused in through the membrane. B Iodine molecules have diffused out through the membrane. C Starch molecules have diffused in through the membrane. D Starch molecules have diffused out through the membrane. 6 The diagram shows the effect of different pH on the time taken for a protease to digest gelatin (a fibrous protein). What c