explain nutrition in multicellular organism (humans) with a labelled diagram. (pls don't write rubbish here and the one where gave the satisfying answer I will mark him brainliest.)
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Answer:
The process of obtaining nutrients through food that provides energy for the growth of the organism is known as nutrition.
ii. Nutrition on Amoeba:
Amoeba is a unicellular organism, which follows the holozoic mode of nutrition.
The process of obtaining food is called phagocytosis.
The various processes involved in nutrition are ingestion, digestion, absorption, assimilation and egestion.
Ingestion is the process by which the food is taken in by forming finger-like projections called pseudopodia and the food is engulfed forming a vacuole.
Digestion is the process wherein the food is broken down into simpler substances in the vacuole, with the help of digestive enzymes.
Absorption is the process by which the digested food in the vacuole is absorbed into the cytoplasm by diffusion.
Assimilation is the process where a part of the food that is absorbed into the cytoplasm is used to generate energy.
Egestion is the process wherein the undigested food is thrown out of the body from the vacuole.
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