NEET BIOLOGY

Detailed explanation-1: -hollow disks that are called thylakoids (“saclike”). The chloroplasts of most higher plants have regions, called grana, in which the thylakoids are very tightly stacked. When viewed by electron microscopy at an oblique angle, the grana appear as stacks of disks.

Detailed explanation-2: -Grana are heaps of film bound, leveled discoid sacs called thylakoids that contain chlorophyll atoms. They are the chloroplasts’ essential practical units. . The homogeneous framework where grana are inserted is known as stroma. The granum is the site of light response, while the stroma is the site of dull response.

Detailed explanation-3: -Each granum is made up of a stack of closed compartment called thylakoids.