Photosynthesis: Question Preview (ID: 924)


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The process by which green plants make food is called __________?
a) Breathing b) Digestion c) Respiration d) Photosynthesis
State the form of energy that is needed for photosynthesis.
a) Heat Energy b) Light Energy c) Sound Energy d) Electrical Energy
The food produced comes in the form of __________?
a) Starch b) Iodine c) Chlorophyll d) Sugar (glucose)
Plants usually produce more food than they need. How do plants store this excess food?
a) They store the food in the form of sugar. b) They store the food in the form of starch. c) They store the food in the form of iodine. d) They store the food in the form of chlorophyll.
What is the substance that plants have in order to 'trap' the sunlight? Where is this substance found in plants?
a) Starch, Leaves b) Iodine, Stems c) Chlorophyll, Chloroplasts d) Sugar in the form of glucose, Leaves
What are the products of respiration?
a) Energy, Oxygen and Water b) Energy, Carbon dioxide and Water c) Sugar (Glucose), Oxygen and Water d) Sugar (Glucose), Carbon dioxide and Water
What gas do most living things need to carry out respiration?
a) Oxygen b) Nitrogen c) Carbon dioxide d) Carbon monoxide
Why do animals and plants need to carry out respiration?
a) To release the energy from the food to carry out life processes. b) To breathe in oxygen and give out carbon dioxide so that they can stay alive. c) Animals and plants need to carry out respiration because they are living things. d) None of the above is correct.
What would happen to the amount of oxygen and the amount of carbon dioxide in the air if photosynthesis did not take place?
a) The amount of carbon dioxide in the air would increase and the amount of oxygen in the air would decrease. b) The amount of carbon dioxide in the air would increase and the amount of oxygen in the air would increase. c) The amount of carbon dioxide in the air would decrease and the amount of oxygen in the air would decrease. d) The amount of carbon dioxide in the air would decrease and the amount of oxygen in the air would increase.
Mrs Yeo prefers to go for morning walks in the park but Mr Yeo prefers to go for his walks at night. Their son, John, prefers to go for his walks in the afternoon. Who will get to breathe in air with more oxygen?
a) Mr Yeo b) Mrs Yeo c) John Yeo d) None of the above as the amount of oxygen in the air is the same regardless of the time.
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