Question

B. Very Short Answer Questions
1. What is nutrition?
2. How are nutrients in the soil replenished?
3. What is symbiosis?
4. How does exchange of gases takes place in leaves?
5. What is photosynthesis?
6. What is the first step in photosynthesis?
7. Sunlight, chlorophyll, carbon dioxide, water and minerals are raw materials essential for
photosynthesis. Do you know where they are available? Fill in the blanks with the appropriate raw
material​

Answer 1

Answer:

B. Very Short Answer Questions

1. What is nutrition?

2. How are nutrients in the soil replenished?

3. What is symbiosis?

4. How does exchange of gases takes place in leaves?

5. What is photosynthesis?

6. What is the first step in photosynthesis?

7. Sunlight, chlorophyll, carbon dioxide, water and minerals are raw materials essential for

photosynthesis. Do you know where they are available? Fill in the blanks with the appropriate raw

material

Answer 2

Answer:

1. Nutrition: 1: The process of taking in food and using it for growth, metabolism, and repair. Nutritional stages are ingestion, digestion, absorption, transport, assimilation, and excretion. 2: A nourishing substance, such as nutritional solutions delivered to hospitalized patients via an IV or IG tube.
2. The nutrients are replenished in the soil by crop rotation. Changing the crops for every season will keep the land fertile. When one type of crop drains the nutrients in one season, then in the nest season plant different type of plant which will give back these nutrients to the soil.
3. Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be positive, negative, or neutral. There are three basic types of symbiosis: mutualism, commensalism, and parasitism.
4. Leaves. The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata (singular = stoma). Normally stomata open when the light strikes the leaf in the morning and close during the night.
5. Photosynthesis. Photosynthesis is the process by which green plants use sunlight energy to make their own food. It takes place inside the chloroplasts of plant cells.
6. Absorption of light
7. The first step in photosynthesis is the absorption of light by chlorophylls that are attached to the proteins in the thylakoids of chloroplasts. The light energy absorbed is then used to remove electrons from an electron donor like water, forming oxygen.
8. sorry nahi pata sorry mate ...m ans hai sab