In which organisms, food material is broken down outside the body
In which of the following groups of organisms, food material is broken down outside the body and absorbed?
- Mushroom, green plants, Amoeba
- Yeast, mushroom, bread mould
- Paramecium, Amoeba, Cuscuta
- Cuscuta, lice, tapeworm
Answer
Yeast, mushroom and bread mould are saprophytes which derive their nutrition from dead organisms. For the purpose, these organisms secrete digestive enzymes on their substratum to break down the complex food material into the simpler ones. These digested food materials are then absorbed by them.
The correct option is B.