The stroma is the Group of answer choices space between the inner and outer membranes of a chloroplast. watery fluid enclosed by the inner membrane of a mitochondrion. thick fluid enclosed by the inner chloroplast membrane. space between the inner and outer membranes of a mitochondrion.

The correct option to the question is (thick fluid enclosed by the inner chloroplast membrane).

Explanation:

Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle. In electron micrographs, thylakoid membranes look like stacks of coins, although the compartments they form are connected like a maze of chambers. The green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the STROMA

The STROMA is made up of thick colourless fluid which surrounds the thylakoid and is enclosed within the inner chloroplast membrane. The stroma is essential for photosynthesis because:

--> it contains the enzymes necessary for carbon fixation,

--> it also manages the chloroplast response to cellular stresses and signaling between various organelles.

--> It plays an important role in both the light-dependent and light-independent reactions of photosynthesis.