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Answer the following questions
1. What is chlorophyll?
2. What are the functions performed by a leaf?
3. Explain the process of photosynthesis with the help of a diagram.
4. What happens to the food prepared by a leaf?
5. Write what happens in the following cases:
(a) If you put a few drops of iodine solution on a potato slice
(b) If you put a few drops of iodine solution on a fresh green lea
been bleached
6. Give examples of plants:
(a) having variegated leaves
(b) lacking chlorophyll
7. Write a short note on how plants and animals depend on each oth
ents are true or false.
Answers
Answer:
1) chlorophyll is green substance present in plant.
3) photosynthesis is a process in which plant make their own food in presence of ⛅ sun,water,CO2,o
Answer:
1. Chlorophyll is a green pigment present in the leaves of a plant and it helps to make food.
2. Functions performed by the leaves are:-
i) The main function of a leaf is to produce food for the plant by photosynthesis.
Photosynthesis.
Transpiration.
Guttation.
Storage.
3. 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.
4. When food is produced by the leaf it is used by the plant. The leftover food is stored in the form of starch in the plant.
5. a) If we put a few drops of iodine solution on a potato slice it will turn in into a blue-black colour due to the presence of starch on the potato.
b) not able to understand write again.
6.a) a) hostas, canna
b) Cuscuta, Orobanche
7. This statement is true because plants depend on animals for carbon dioxide for the process of photosynthesis and animals depend on plants for their food and oxygen.