Which of the following is not found in an animal cell?

What is the length of a chloroplast?

Stroma is the ground material of which of the following?

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

The structures that are formed by stacking of organised flattened membranous sacs in the chloroplasts are

Identify $X$ from the given figure of a chloroplast.