Definition of grana in English:
plural noun (singular granum)Botany
The stacks of thylakoids embedded in the stroma of a chloroplast.
- Chloroplast envelopes, stacked grana and unstacked stroma thylakoids were well-defined.
- The chloroplasts with large grana stacks were seen in 50% of cases but none of the parameters significantly explained the occurrence.
- The VPC chloroplasts possessed well-developed thylakoids with grana.
late 19th century: plural of Latin granum 'grain'.
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