AIIMS 2006
- Exam
- AIIMS
- Year
- 2006
- Subject
- Botany
- Chapter
- Cell - The Unit of Life
AIIMS 2006 · Botany · Cell - The Unit of Life
In prokaryotes, chromatophores are
In prokaryotes, chromatophores are
Options
- Aspecialized granules responsible for colouration of cells
- Bstructures responsbile for organizing the shape of the organism
- Cinclusion bodies lying free inside the cells for carrying out various metabolic activities
- Dinternal membrane systems that may become extensive and complex in photosynthetic bacteria.
Correct answer
D. internal membrane systems that may become extensive and complex in photosynthetic bacteria.
Step-by-step solution
Chromatophores are internal membrane systems present in photosynthetic prokaryotes. These develop as membrane lined sacs or thylakoids from plasma membrane. Thylakoid membranes contain photosynthetic pigments in cyanobacteria and purple bacteria. Small sacs or granules containing pigments phycobilin are attached to these membranes. In green bacteria chromatophores are covered by non-unit, non-lipid protein membrane. They are sometimes called chlorosomes.