Question

Long answer type questions:
a. Explain role of leaves in photosynthesis
b. Define parasitic nutrition with examples
c. What is the role of bacteria and fungi in cleaning of our environment ?​

Answer 1

Answer:

here is answer

Explanation:

(1) Leaves are designed and adapted to allow photosynthesis to take place. They are flat and broad to capture as much of the light energy from the sun as possible. They also contain lots of tiny holes called stomata which allow for the absorption of carbon dioxide and the release of oxygen.

(2) Parasitic nutrition is a type of nutrition in which the organisms live on or inside the body of their host and derive their food from them. There are two types of parasites: Ectoparasites: The live outside the body of the host. example- mosquito.

(3) The microorganisms decompose dead organic wastes of plants and animals converting them into simple substances. These substances are again used by other plants and animals. Thus, microorganisms can be used to degrade the harmful and smelly substances and thereby cleans up the environment.

Answer 2

Explanation:

1. Leaves are designed and adapted to allow photosynthesis to take place. They are flat and broad to capture as much of the light energy from the sun as possible. They also contain lots of tiny holes called stomata which allow for the absorption of carbon dioxide and the release of oxygen.

2. Parasitic nutrition is a mode of heterotrophic nutrition where an organism lives on the body surface or inside the body of another type of organism . The parasite obtains nutrition directly from the body of the host. The parasites derive their nourishment from their host.

3.The bacteria do a process called nitrogen fixation, which provides nitrogen for the plants, which they need to grow. Another example is between photosynthetic bacteria and fungi. The photosynthetic bacteria provide food for the fungi, and the fungi provide protection for the bacteria.

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