Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

2. Photosynthesis is the process by which plants use sunlight, water, and
carbon dioxide to createoxygen and energy in the formof sugar.

4. conversion of light energy into chemical energy
the essential factors for photosynthesis to take place include
• Sunlight
• Water
• Carbon dioxide

5. Leaves on the plants have pores, called stomata.
These stomata are responsible for the exchange of gases.
The carbon dioxide, enters the plant through these stomata. Oxygen also comes
out from the same stomata.
 Leaf has important cells called Mesophyll cells. These cells contain a green
color component called chloroplast. This chloroplast is responsible for the green
color of plants and leaves.

6. The most important function of the chloroplast is to synthesise food by the process of
photosynthesis.
They are double-membrane organelle with the presence of outer, inner and
intermembrane space.
grana
 stroma.
There are two distinct regions present
inside a chloroplast

7. Grana are made up of stacks of disc-shaped structures known as thylakoids or
lamellae.
The grana of the chloroplast consists of chlorophyll pigments and are the functional
units of chloroplasts.
Stroma is the homogenous matrix which contains grana and is similar to the
cytoplasm in cells in which all the organelles are embedded.
Stroma also contains various enzymes, DNA, ribosomes, and other substances.
Stroma lamellae function by connecting the stacks of thylakoid sacs or grana.