Question

Photosynthetic pigments found in the chloroplasts occur in
A)Thylakoid membrane
B)Plastoglobules
C)Matrix
D)Chloroplast envelope

Answer 1

Hint: In the grana section of the chloroplast, the light reaction takes place while the dark reaction takes place in the chloroplast's stroma portion. These are large membrane systems which are located in the stroma, running parallel to each other.

Complete answer:
Thylakoids within chloroplasts and cyanobacteria are membrane-bound compartments. They are the site of photosynthesis's light-dependent reactions. A thylakoid membrane surrounding a thylakoid lumen consists of thylakoids. The photosynthetic pigments are found inside the chloroplast's thylakoid membrane. Chloroplast possesses two types of thylakoid in higher plants-large and small. The broad thylakoids are known as stroma thylakoids, which stretch from one end of the chloroplast to the other. The tiny thylakoid is disc-shaped and tightly packaged to form grana thylakoids in places. In an area called 'granum,' the grana thylakoids fuse with big stroma thylakoids.

The organic molecules that absorb light from particular wavelengths in the visible region due to the existence of conjugated double bonds are photosynthetic or chloroplastic pigments found in the thylakoid membrane that constitute chloroplast grana. There are photosynthetic pigments and protein-rich fluids in the stroma. -The chloroplast is a double membrane-bound body containing chlorophyll, the green photosynthetic pigment. The number of chloroplasts in the green cells of higher plants varies from 20-100. In the cytoplasm, thylakoids or lamellae lie freely but without any unique envelope. The existence of nucleic acid allows semi-autonomous and self-replicating organelles of the chloroplast.

Hence, the correct answer is option (A)

Note: In blue-green algae and non-photosynthetic bacteria and fungi, chloroplasts are absent. The thylakoid membrane has been documented to have certain coupling factors, such as ATP and photosynthetic pigments.