Biology > QUESTION PAPER (QP) > GCSE COMBINED SCIENCE: TRILOGY Higher Tier Biology Paper 1H. Latest Test Paper. THE PREDICTOR (All)

GCSE COMBINED SCIENCE: TRILOGY Higher Tier Biology Paper 1H. Latest Test Paper. THE PREDICTOR

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This question is about cell structures. box 0 1 . 1 Draw one line from each cell structure to the type of cell where the structure is found. [2 marks] Cell Structure Type of cell where the structu... re is found Nucleus Permanent vacuole Plasmid Prokaryotic cells Plant cells only Eukaryotic cells3 *03* Turn over ► IB/M/Jun18/8464/B/1H Do not write outside the 0 1 . 2 Figure 1 shows a plant cell. box Figure 1 What are the names of structures A, B and C? [1 mark] Tick one box. Structure A Structure B Structure C Chloroplast Vacuole Cell wall Nucleus Chloroplast Cell membrane Vacuole Mitochondrion Cell membrane Vacuole Ribosome Cell wall Question 1 continues on the next page4 *04* IB/M/Jun18/8464/B/1H Do not write outside the A student observed slides of onion cells using a microscope. box Figure 2 shows two of the slides the student observed. Figure 2 The cells on the slides are not clear to see. 0 1 . 3 Describe how the student should adjust the microscope to see the cells on Slide A more clearly. [1 mark] 0 1 . 4 Describe how the student should adjust the microscope to see the cells on Slide B more clearly. [2 marks]5 *05* Turn over ► IB/M/Jun18/8464/B/1H Do not write outside the box 9 0 1 . 5 The student made the necessary adjustments to get a clear image. Figure 3 shows the student’s drawing of one of the cells. Figure 3 The real length of the cell was 280 micrometres (µm). Calculate the magnification of the drawing. [3 marks] Magnification = × Turn over for the next question6 *06* IB/M/Jun18/8464/B/1H Do not write outside the 0 2 Coronary heart disease (CHD) is a non-communicable disease. box CHD is caused when fatty material builds up in the coronary arteries. 0 2 . 1 Explain what a non-communicable disease is. [2 marks] Figure 4 shows a coronary artery of someone with CHD. Figure 4 0 2 . 2 Explain how CHD can cause a heart attack. [3 marks]7 *07* Turn over ► IB/M/Jun18/8464/B/1H Do not write outside the box 11 0 2 . 3 Explain how lifestyle and medical risk factors increase the chance of developing CHD. [6 marks] Turn over for the next question8 *08* IB/M/Jun18/8464/B/1H Do not write outside the 0 3 This question is about photosynthesis. box 0 3 . 1 What is the correct balanced equation for photosynthesis? [1 mark] Tick one box. C6H12O6 + 6O2  6CO2 + 6H2O O2 + H2O  C6H12O6 + CO2 6CO2 + 6H2O  C6H12O6 + 6O2 6O2 + 6CO2  6H2O + C6H12O6 0 3 . 2 What type of reaction is photosynthesis? [1 mark] Tick one box. Aerobic Endothermic Exothermic Oxidation9 *09* Turn over ► IB/M/Jun18/8464/B/1H Do not write outside the A student investigated the effect of light intensity on the rate of photosynthesis. box Figure 5 shows the apparatus used. Figure 5 Sodium hydrogencarbonate solution releases carbon dioxide gas for the pondweed. This is the method used. 1. Place the pondweed at 5 cm from the light source. 2. Measure the rate of photosynthesis by counting the number of bubbles produced in 1 minute. 3. Repeat with the pondweed at 10 cm and at 20 cm from the light source. 0 3 . 3 Counting the number of bubbles produced in 1 minute is not an accurate way to measure the rate of photosynthesis. Suggest two ways the method could be improved to measure the rate [Show More]

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