Definition of thylakoid in English:
thylakoid
noun ˈθʌɪləkɔɪdˈTHīləˌkoid
Botany Each of a number of flattened sacs inside a chloroplast, bounded by pigmented membranes on which the light reactions of photosynthesis take place, and arranged in stacks or grana.
as modifier thylakoid membranes
Example sentencesExamples
- The pigment proteolipids of thylakoids have both a photosynthetic function and a role in membrane structure.
- Chloroplasts at the proximal end of the cell also have grana, but with up to nine thylakoids per stack.
- Affected leaf tissue is white and the plastids lack thylakoids and chlorophyll.
- This organelle contains a complex membrane system, the thylakoids, in which the photosynthetic machinery is located.
- Chloroplast envelopes, stacked grana and unstacked stroma thylakoids were well-defined.
Origin
1960s: from German Thylakoid, from Greek thulakoidēs 'pouch-like', from thulakos 'pouch'.