Soal-PM IPA Past Paper PDF

PENGAYAAN MATERI KELAS 9 Q1. The pyramid diagram represents a food chain. (a) Where do producers obtain their energy from? (1)..............................

PENGAYAAN MATERI KELAS 9 Q1. The pyramid diagram represents a food chain. (a) Where do producers obtain their energy from? (1).......................................................................................................................................................................................................................................................................................... (b) Explain what happens to the amount of energy available in the different trophic levels of the food chain. (2).................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... (Total for question = 3 marks) Q2. The roots of wild carrots are not very edible. They are tough, woody, small and thin. Selective breeding has produced varieties with larger roots. The selective breeding of carrots involves these four stages. They are not in the correct order. 1. breed the plants together to produce seeds 2. select the carrot plants with the largest roots 3. repeat this for many generations 4. grow the seeds into new plants (a) Complete the flow chart by putting these stages in the correct order. The first one has been done for you. (1) (b) State one other feature of wild carrots that could be improved by selective breeding. (1)............................................................................................................................................. (Total for question = 2 marks) Q3. Q4. (a) Give one way in which plant and animal cells are similar. (1).......................................................................................................................................................................................................................................................................................... (b) Give one way in which plant and animal cells are different. (1).......................................................................................................................................................................................................................................................................................... (Total for question = 2 marks) Q5. Q6. This is an image of a coronavirus. This virus can cause disease in humans. (a) Explain why the coronavirus is not considered to be a living organism. (2).................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... (b) State one way in which people can develop increased immunity to infection by the coronavirus. (1)............................................................................................................................................. (Total for question = 3 marks) Q7. (a) Respiration takes place in the cells of living organisms. Complete this word equation for aerobic respiration. (2) glucose +............................................................................. →......................................................................... + water (b) Describe how anaerobic respiration is different from aerobic respiration. (2).................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... (Total for question = 4 marks) Q.8 Q8 8 Q9. The words in the box describe different types of organism. Place the words in the order they would appear in a food chain. (1).................................................. →..................................................... →.................................................. (Total for question = 1 mark) Q10. The diagram shows a simple food web. (a) (i) Give the name of an omnivore in this food web. (1).......................................................................................................................................................................................................................................................................................... (ii) Give the name of a producer in this food web. (1).......................................................................................................................................................................................................................................................................................... (b) Describe what the arrows in a food web show. (2)....................................................................................................................................................................................................................................................................................................................................................................................................................................... (Total for question = 4 marks) Q11. The diagram shows some organs in a human body labelled P, Q, R and S. (a) Give the letter that labels the stomach. (1) (b) Give the main function of the stomach. (1) (Total for question = 2 marks) Q12. The diagram shows some parts of a typical plant cell labelled A to E. (a) (i) Give the letter that labels the permanent vacuole. (1)........................................ (ii) Give the letter that labels the cell wall. (1)........................................ (b) Give two ways in which this typical plant cell is different to a typical animal cell. (2) 1.......................................................................................................................................................................................................................................................................................... 2.......................................................................................................................................................................................................................................................................................... (Total for question = 4 marks) Q13. Q14 Q15 Q16 Q17 Q18 (a) Viruses cause many infectious diseases. Scientists do not class viruses as living organisms. Give one reason why a virus is not classed as a living organism. (1).......................................................................................................................................................................................................................................................................................... (b) Antibiotics are used in the treatment of certain illnesses. Explain why antibiotics are not effective in the treatment of flu. (2).................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... (Total for question = 3 marks) Q19 Q20