Name the green dot-like structures in some cells observed by a student when a leaf peel was viewed under a microscope. What is this green colour due to?

What are outside raw materials used for by an organism?

An organism $A$, which cannot move from one place to another, makes a simple food $B$ from the substances $C$ and $D$ available in the environment. This food is made in the presence of a green-coloured substance $E$ present in organs $F$ in the presence of light energy in a process called $G$. Some of the simple food $B$ also gets converted into a complex food $H$ for storage purposes. The food $H$ gives a blue-black colour with dilute iodine solution.
$(a)$ What are $(i)$ organism $A$, (ii) food $B$, and (iii) food $H$?
$(b)$ What are $C$ and $D$?
$(c)$ Name $(i)$ green-coloured substance $E$, and (ii) organ $F$.
$(d)$ What is the process $G$?

Define "Saprophytic nutrition". Give one example of an organism that exhibits this mode of nutrition.

Name the two glands associated with the digestive system in humans. Name their secretions also.

How does carbon dioxide from the air enter the leaves of a plant to be used in photosynthesis?