Definition of grana in English:
grana
plural nounˈɡreɪnəˈɡrɑːnəˈɡrānə
Botany The stacks of thylakoids embedded in the stroma of a chloroplast.
Example sentencesExamples
- The chloroplasts with large grana stacks were seen in 50% of cases but none of the parameters significantly explained the occurrence.
- Sometimes grana lost their stacked organization and appeared to slide partially apart at the partitions.
- Chloroplast envelopes, stacked grana and unstacked stroma thylakoids were well-defined.
- The thylakoid system was normally developed with grana composed of, on average, three to four stacked thylakoids.
- The VPC chloroplasts possessed well-developed thylakoids with grana.
Origin
Late 19th century: plural of Latin granum 'grain'.