Question

Phytochrome located in?
Chloroplast
Chromoplast
Cell membrane
Cytoplasm

Answer 1

Phytochrome is located in Cell membrane

Answer 2

Answer:

Cytoplasm

Explanation:

• Phytochrome is a pigment found in flowering plants. They are photoreceptors that plants use to detect light.

• This pigment regulates important plant responses such as flowering, seed germination, etc.

• It is a photomorphogenic pigment that exists in two interconvertible forms: Pfr i. e-P₇₃₀ that absorbs light at 730 nm and the other form is Pr form i.e- P₆₆₀: absorbing light at 660 nm.

• These phytochrome pigments are normally located in the plant cell cytoplasm but when gets converted to the Pfr state, that means upon light activation, it moves to the nucleus to modulate the gene expressions responsible for plant growth.

Thus phytochromes are located in the cytoplasm.