Question

Choose the correct answer from the alternatives given.
The term stroma refers to

• A. the double membrane of the chloroplast
• B. a stack of thylakoid membrane structures
• C. the central fluid-filled space of the chloroplast
• D. the cytochrome system in the membranes of the thylakoids

Answer 1

The correct option is C the central fluid-filled space of the chloroplast

Stroma refers to the colourless fluid surrounding the grana within the chloroplast. Within the stroma are grana, stacks of thylakoids, the sub-organelles, where photosynthesis is commenced before the chemical changes are completed in the stroma.

So, the correct answer is 'the central fluid-filled space of the chloroplast'.