1. Describe the process of photosynthesis in detail with the help of a diagram.
2. Explain the experiment to test a leaf for the presence of starch.
3. How can you prove that the process of photosynthesis requires sunlight?
4. Explain the mechanism of trapping insects in Venus flytrap.
5. What are the different types of heterotrophic nutrition in plants? Give two examples a
Answers
Answer:
1. Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
2.The following experiment is performed to test the presence of starch in leaves: Take a fresh leaf Boil the leaf so that the cells in leaves gets soft Dip the boiled leaf in iodine solution
3. To prove the necessity of sunlight in photosynthesis following steps need to do Take a plant with destarched leaf. Leaf is partially covered with black paper on which a design is cut. Expose this plant to sunlight for few hours and perform a starch test with iodine solution.
4. The trapping mechanism in Venus flytraps is designed to detect motion inside the leaves and activate the trap. You can easily trigger a Venus flytrap and get your finger stuck in the leaves. However, it won’t really be trapped because of two main reasons: size and strength. First, Venus flytraps are small plants