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stroma

stroma

1 9.9
The clear fluid inside a chloroplast that holds enzymes for photosynthesis
  • noun
  • /ˈstroʊmə/
  • Specialized
: estroma
  • The Calvin Cycle occurs in the stroma of chloroplasts.

Examples

  • The Light Reactions occur in the grana, and the Dark Reactions take place in the stroma of the chloroplasts.

  • And then here in the stroma of the chloroplast is where we're doing the dark reactions.

  • All right, So thylakoid membrane, stroma side, lumen side.

  • Dark reactions occur in the stroma.

Surface Forms

stroma singular
stromas plural

Etymology

Stroma comes from a Greek word stroma that means 'bed' or 'layer'. In a chloroplast the stroma is the fluid 'bed' that holds the enzymes and parts needed for photosynthesis.