Question

What is the location of the stomata?

Answer 1

usually you find the stomata on the abaxial leaf face, on the secundary vein axils.

Answer 2

Stomata may be found on any part of the leaf, or not at all. This depends on the species.

The primary function of a stoma is to 'inhale' carbondioxide from the air, which the plant will use in photosynthesis.

In a normal plant, stomata are usually on the lower side of the leaf, trees like pine have stomata all around their needles. But if the leaf is floating (e.g. water lily) the stomata will be on the top.
Leaves that are completely submerged, may not have stomata at all (because of them being useless).

Extra:
From the denisity of stomata seen in fossil leaves, we can say something about the carbondioxide-content of our earlier atmosphere (more `CO_2->`fewer stomata necessary)

Answer 3

The thylakoids exist in the open space of the chloroplast known as the stroma.

Explanation:

1. The chloroplast contains chlorophyll thylakoids.
2. The thylakoids absorbs light energy. The thylakoids give green color.
3. The stacks of thylakoids are known as grana.
4. The grana exist in the space of the chloroplast known as the stroma.