Aleuroplast stores....

In the given figure,what does $B$ represent?

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

Into how many types are plastids classified?

Where is chlorophyll present in the chloroplast?

Which pigments are responsible for the various colors of flowers,fruits,and seeds?