H. Short answer questions
1. Name the pigment that makes the plants green.
2. Name the process by which plants prepare their own food.
3. Which materials are essential for photosynthesis?
4. What is the function of stomata?
5. Where is chlorophyll present? Why is it important for plants?
6. Which chemical is used to test the presence of starch in leaves?
7. Give an equation for the process of photosynthesis in plants.
8. How do woody stems respire?
9. How do respiration and photosynthesis maintain balance in nature?
10. Name the products formed in plants and animals during anaerobic respiration.
Answers
Answer:
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Explanation:
1. chlorophyll
2.photosynthesis
3.sunlight
4.The major function of stomata is the exchange of gases by taking carbon dioxide from the atmosphere and giving out oxygen that is used by human beings and animals. They help in photosynthesis and transpiration.
8. In hard and woody stems, respiration or the exchange of gases takes place through lenticels. They are the small pores, scattered all over the bark and are found in all trees.
7. The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
Answer:
1.Chlorophyll.
2.Photosynthesis.
3.H2O, CO2, Sunlight and Chlorophyll.
4.Helps in the exchange of gases.
5.In the mesophyll part of plants. It traps sunlight.
6.Iodine.
7.6CO2+6O2-----C6H12O6+6O2.
8.They have lenticles.
9.In respiration CO2 is released and in photosynthesis O2 is released and thus both maintain a balance in nature.
10. Alcohol and Lactic acid respectively.
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