AP BIOLOGY

Detailed explanation-1: -The fluid that fills the inner space of the chloroplasts that encircle the grana and thylakoids is known as stroma. The stroma is now known to contain chloroplast DNA, starch, and ribosomes, as well as enzymes required for the Calvin cycle, in addition to supporting the pigment thylakoids.

Detailed explanation-2: -Cytoplasm is the jelly-like and semi-fluid structure present in the space between the cell membrane and nucleus. Cytoplasm provides turgidity to the cell.

Detailed explanation-3: -What is stroma in a chloroplast? Stroma is the fluid-filled internal space of the chloroplasts which encircle the grana and the thylakoids. It contains chloroplast DNA, starch and ribosomes along with enzymes needed for the Calvin cycle.

Detailed explanation-4: -Inside the outer and inner chloroplast membranes is the chloroplast stroma, a gel-like fluid that surrounds the thylakoids.

Detailed explanation-5: -In photosynthesis: Structural features., the lamellae) and the stroma, a colourless matrix in which the lamellae are embedded. Also visible are starch granules, which appear as dense bodies. In plant: Basic mechanisms. …the chloroplast is called the stroma.