Why do we believe chloroplast and mitochondria to be semi-autonomous organelle?

In a way green plants and cyanobacteria have synthesized all the food on the earth. Comment.

Tomatoes, carrots and chillies are red in colour due to the presence of one pigment. Name the pigment. Is it a photosynthetic pigment?

Observe the diagram and answer the following.

a. Which group of plants exhibits these two types of cells?

b. What is the first product of C4 cycle?

c. Which enzyme is there in bundle sheath cells and mesophyll cells?

A cyclic process is occurring in C3 plant, which is light dependent, and needs O₂. This process doesn’t produce energy rather it consumes energy.

a. Can you name the given process?

b. Is it essential for survival?

c. What are the end products of this process?

d. Where does it occur?