Biology B (9-1) - Twenty First Century Science Suite J257 9-1: Using food and controlling growth Topical Past Paper Questions
OCR GCSE (9-1) Biology B (9-1) - Twenty First Century Science Suite J257 (9-1) past-paper questions on Using food and controlling growth, free. This topic is frequently examined across 6 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
Plants take in substances to help them stay alive. (a) Complete the table to describe the substances taken into a plant and the processes they are used for. [3] (b) The mass of a plant in the morning is 50 g. By the evening, the plant has taken up 5 g of water. (i) Calculate the…
Plant cells in the leaf of a tree contain chloroplasts and mitochondria. (a) Complete the sentences about the processes that take place in chloroplasts and mitochondria. Use words from the list. (c)* There are two trees growing next to a building. Tree A is growing on the sunny s…
Humans make gametes for use in sexual reproduction. (a) Gametes are made by the process of meiosis. (i) At the start of interphase a human cell has 46 chromosomes. The cell goes through interphase and meiosis to make gametes. Complete the information in the table to explain what…
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