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11 Cards in this Set
- Front
- Back
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What is the experiment testing the rate based o light intensity? |
Pondweed in a test tube propped up in a flask in front of a lamp. measure the distance of lamp and bring it closer after each measurement of bubbles. |
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How to improve the light intensity experiment? |
Seal the test tube to a gas syringe and measure volume of gas produced. |
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What is the graph of light intensity and how does it limit rate? |
Without enough light intensity, photosynthesis decreases as the energy from the sun is used in the process of gas exchange. |
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What is the graph of carbon dioxide and how does it limit rate? |
Used with water to make sugar and oxygen. Photosynthesis wouldn't be able to happen if CO2 wasn't available. |
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What is the graph of temperature and how does it limit rate? |
An environment that is too hot will denature the enzymes controlling it and if it is too cold enzyme activity slows. |
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What are the adaptations of the leaf? |
Air spaces - To allow gas exchange Thin leaves - Short diffusion for gases Broad leaves - Large surface area for absorption of light Contain chlorophyll - Absorb light energy Veins - Transport water and remove products of photosynthesis |
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What are the uses of glucose in a plant? |
- Converted into insoluble substances for storage through starch, oils and fat - Cellulose for cell walls - Mixed with nitrates to make protein for growth and repair |
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What is the word equation for photosynthesis? |
Carbon dioxide + water = oxygen + glucose + water |
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How can a greenhouse be used to improve the efficiency of photosynthesis? |
- Artificial light to continue photosynthesis during the night - Artificial heating to continue at an increased rate - Additional carbon dioxide to continue at an increased rate |
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What is the hydroponic system? |
Method of growing plants in water-based, nutrient rich solution |
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