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Aitchison College Academic Resources.
4 Four test-tubes are set up as shown in the diagram and left in full sunlight.
After several hours, which test-tube contains the most dissolved oxygen?
A B c D
5 Plants manufacture their own supplies of carbohydrate.
What are the raw materials and the waste product of this process?
raw materials waste product
A | carbon dioxide and chlorophyll oxygen
B carbon dioxide and water oxygen
c oxygen and chlorophyll carbon dioxide
D oxygen and water carbon dioxide
6 A plant with variegated leaves has the starch removed from its leaves by placing it in a dai
cupboard for 48 hours.
Black paper is then fixed on one leaf as shown and the plant is exposed to light.
After 24 hours, which part of the leaf contains starch?
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