| 1. 1 pt(s). |
Look at the drawing of the plant. The sun shines on the plant and inside it’s green leaves
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A. | digestion occurs | |
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B. | pollination occurs | |
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C. | fertilisation occurs | |
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D. | photosynthesis occurs | |
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| 2. 1 pt(s). |
Look at the drawing of a plant. The leaf stores energy from the sun as
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A. | acid | |
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B. | rice | |
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C. | starch | |
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D. | alcohol | |
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| 3. 1 pt(s). |
Look at the flow diagram. X is a gas produced by animals and used by plants. X is
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A. | hydrogen | |
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B. | carbon | |
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C. | oxygen | |
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D. | nitrogen | |
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E. | carbon dioxide | |
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| 4. 1 pt(s). |
Look at the flow diagram. Y is a gas produced by plants and used by animals. Y is
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A. | hydrogen | |
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B. | carbon | |
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C. | nitrogen | |
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D. | oxygen | |
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E. | carbon dioxide | |
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| 5. 1 pt(s). |
According to the chart, which set of conditions represents the process of photosynthesis?
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A. | A | |
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B. | B | |
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C. | C | |
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D. | D | |
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| 6. 1 pt(s). |
This experiment was set up to test the hypothesis that plants grow faster in green light. The same amount of water and fertilizer were added to each pot. Which of these would improve the experiment?
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A. | Use green lights for all three plants | |
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B. | Add more types of plants | |
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C. | Use the same kind of plant in all trials | |
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D. | Use different pots for each plant | |
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| 7. 1 pt(s). |
A plant’s green color is due to the presence of what in its cells? | |
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A. | chloroplast |
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B. | nucleus |
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C. | cytoplasm |
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D. | cell wall |
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| 8. 1 pt(s). |
Which of the following is produced as a result of photosynthesis? | |
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A. | heat |
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B. | water |
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C. | oxygen |
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D. | carbon dioxide |
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| 9. 1 pt(s). |
When plants perform photosynthesis, they use sunlight to produce food. This is an example of light energy being converted to — | |
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A. | heat energy |
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B. | electrical energy |
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C. | mechanical energy |
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D. | chemical energy |
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| 10. 1 pt(s). |
Grasses, shrubs, and trees are called producers because they make | |
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A. | water |
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B. | food |
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C. | minerals |
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D. | carbon dioxide |
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| 11. 1 pt(s). |
Which of the following materials are direct products of photosynthesis? | |
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A. | fats and starches |
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B. | oxygen and sugar |
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C. | proteins and amino acids |
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D. | carbon dioxide and water |
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| 12. 1 pt(s). |
The equation for photosynthesis is shown. Which of these is required to complete the equation for photosynthesis?
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A. | Carbon | |
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B. | Oxygen | |
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C. | Nitrogen | |
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D. | Hydrogen | |
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| 13. 1 pt(s). |
Chloroplasts are found only in organisms that are able to — | |
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A. | convert light energy to chemical energy |
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B. | grow to a larger size |
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C. | migrate to other ecosystems |
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D. | hunt for prey |
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| 14. 1 pt(s). |
Which of these experimental designs would best test this hypothesis?
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A. |
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B. |
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C. |
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D. |
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| 15. 1 pt(s). |
What process makes food for plants? | |
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A. | Reproduction |
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B. | Photosynthesis |
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C. | Respiration |
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D. | Condensation |
