Question: what does the grana do in a plant cell

title: Thylakoid
text: A thylakoid is a membrane - bound compartment inside chloroplasts and cyanobacteria . They are the site of the light - dependent reactions of photosynthesis . Thylakoids consist of a thylakoid membrane surrounding a thylakoid lumen . Chloroplast thylakoids frequently form stacks of disks referred to as grana ( singular : granum ) . Grana are connected by intergranal or stroma thylakoids , which join granum stacks together as a single functional compartment . 

Answer: answer: Chloroplast thylakoids frequently form stacks of disks referred to as grana. Grana are connected by intergranal or stroma thylakoids, which join granum stacks together as a single functional compartment. Thylakoids are the site of the light - dependent reactions of photosynthesis.