1) Where does photosynthesis occur in this rose bush? a) in part Q only b) in part R only c) in parts R and S only d) in all the parts 2) Aerobic respiration: a) only occurs in plant leaf cells when it is light. b) does not occur in plants. c) occurs in all plant cells all of the time. d) only occurs in plant cells when it is dark. 3) What does this graph show? a) The more light, the faster photosynthesis gets, until a certain level amount of light is reached and it can go no faster. b) The more light, the faster photosynthesis gets, but above a certain amount of light photosynthesis slows down. c) The faster the photosynthesis gets, the more light is produced. d) The less light, the faster photosynthesis gets, until it can get no faster 4) Which of these shows the correct word equation for aerobic respiration? a) water + carbon dioxide (arrow) glucose + oxygen b) glucose + oxygen (arrow) water + carbon dioxide c) glucose (arrow) oxygen + glycerol d) chlorophyll + carbon dioxide (arrow) water + glycogen 5) Leaves are often wide so that they can: a) provide shelter for animals living under them. b) float to the ground when they drop in autumn. c) absorb as much sunlight as possible d) catch as much rain as possible. 6) Roots are adapted to their job by: a) having many branches and being spread out. b) having cells that can respire. c) having cells that can photosynthesise. d) being a pale colour. 7) If plants do not get enough water they start to: a) grow towards the light. b) grow bigger roots. c) shrink. d) wilt. 8) This pictures shows a cell from a root. What is it called? a) xylem cell b) root hair cell c) root extension cell d) root palisade cell 9) Plants often turn some of the food they make into another substance for storage. The name of this substance is: a) glucose b) fibre c) starch d) pasta. 10) Look at the graph. It shows the different amounts of growth of a plant at different temperatures in a greenhouse. The plant grows best at the temperature marked X. What temperature is X most likely to be? a) above 50 °C b) between 20 °C and 30 °C c) between 10 °C and 20 °C d) lower than 5 °C 11) Plants need cellulose to: a) store energy. b) repair damaged cells. c) make cell surface membranes. d) make cell walls. 12) One important type of mineral salt is: a) loam. b) sodium chloride. c) clay. d) nitrate. 13) What would be the effect on this food web if insecticide were sprayed on the area? a) The number of wrens would go down. b) The number of wrens would go up. c) The number of wrens would stay the same d) The rose bush would die. 14) Look at the food web. Which organisms could be used as a biological control agent for aphids? a) wrens b) aphids c) lacewings d) rose bushes 15) The carbon cycle: a) is a type of very light bicycle used by Olympic athletes b) shows how carbon flows between the atmosphere and different organisms. c) is a process that is used to stop global warming, by removing carbon dioxide from the atmosphere. d) is made out of oxygen and carbon. 16) Plants are important in keeping the amount of carbon in balance because: a) they produce carbon, which can be harvested b) they use up oxygen. c) they release carbon dioxide. d) they remove carbon dioxide from the atmosphere.

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