Question

what is difference between stroma and grana​

Answer 1

Answer:

Stroma is the homogenous matrix present within the membrane of chloroplast. Grana is the disc-like plates embedded in the stroma of the chloroplast. Grana are connected to each other by intergranal lamellae.

Answer 2

stacks of thykoids are called grana while the colourless ground substance on which they are lying is called stroma. Hope this helps.