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CBSE Class 11-science Answered

Define and state the function of the following: 1.Chromatophores 2.Non-unit membrane 3.Phagosomes 4.Fenestration
Asked by pb_ckt | 18 Apr, 2019, 11:21: PM
answered-by-expert Expert Answer
1. Chromatophores are pigment-containing and light-reflecting cells found in bacteria and a wide range of animals including amphibians, fish, reptiles, crustaceans and cephalopods. These cells expand and contract to exhibit different pigments, which allows the animal to change the colour of its body to resemble its environment for defense, hunting, signaling, temperature regulation, protection from radiation and mating purposes.
 
2. A single layered membrane which is the case for some organelles such as vacuoles and lysosomes.
3. A phagosome is a membrane-bound vesicle that holds foreign matter. It is formed through a process called phagocytosis, where the cell membrane folds inward and envelops foreign material such as bacteria.
4. An opening in the surface of a structure, such as in a membrane is called fenestration. 
Answered by Sivanand Patnaik | 19 Apr, 2019, 09:44: AM

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