Light hits the thylakoids of chloroplasts
- A thylakoid is a membrane-bound compartment inside chloroplasts and cyanobacteria, 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). [Wikipedia]
(Illustration by Stroma Studios)