Kingdom Protista - Nutrition
Description:
The different modes of nutrition in protists are as follows −
Photosynthetic (Holophytic) − Organisms prepare food from carbon dioxide and water by utilizing sunlight with the help of pigments like chlorophyll.
Holozoic or zootrophic − The individual captures and ingests food like animals.
Saprobic or saprotrophic − Enzyme is released outside and then the digested products are absorbed.
Parasitic − Get food from the body of other organisms. Individual which obtains the food is called parasite and the one from which parasite gets food is known as host.
Mixotrophic − Can perform both holophytic and saprobic modes of nutrition.
Symbiotic − Mutual association between two organisms.
Pinocytosis − Soluble organic substances and salts are absorbed by the organism.