AP BIOLOGY

Detailed explanation-1: -Thylakoid is a disc-shaped structure within the stroma of the chloroplast. Stroma is the space inside the inner membrane of the chloroplast. Thylakoids are placed one above the other to form a stack-like structure called a granum .

Detailed explanation-2: -Stacks of thylakoids embedded with pigment molecules are called grana. The inner matrix of the chloroplast is called the stroma.

Detailed explanation-3: -The Structure and Function of Chloroplasts The thylakoid membrane forms a network of flattened discs called thylakoids, which are frequently arranged in stacks called grana.

Detailed explanation-4: -A granum (plural grana) is a stack of thylakoid discs. Chloroplasts can have from 10 to 100 grana. Grana are connected by stroma thylakoids, also called intergranal thylakoids or lamellae.

Detailed explanation-5: -the flattened disc like sac in chloroplast is called thylakoid. Thylakoids float freely within the chloroplast’s stroma.