What is the Difference Between Nutrition in Amoeba and Human Beings?

February 28, 2023 | by Yashaswi Pathakamuri | Posted in FAQ's

There are several differences between nutrition in amoeba and human beings:

  • Mode of nutrition: Amoeba is a unicellular organism that obtains its nutrition through a process called phagocytosis. It engulfs its food, such as bacteria and other microorganisms, using its pseudopodia (false feet) and digests it internally. In contrast, humans are multicellular organisms that obtain their nutrition through a combination of mechanical digestion (chewing and grinding food), chemical digestion (breaking down food with enzymes), and absorption (transporting nutrients into the bloodstream).
  • Digestive system: Amoeba has a simple digestive system, consisting of a single cell membrane that encloses the food vacuole where digestion takes place. In contrast, humans have a complex digestive system, including the mouth, esophagus, stomach, small intestine, and large intestine, as well as accessory organs such as the liver, pancreas, and gallbladder.
  • Nutrient requirements: Amoeba is a simple organism that requires only a few nutrients, such as glucose, amino acids, and fatty acids, to survive. In contrast, humans require a wide range of nutrients, including carbohydrates, proteins, fats, vitamins and minerals, to maintain their health and well-being.
  • Nutrient absorption: Amoeba absorbs nutrients directly through its cell membrane, while humans absorb nutrients through the lining of the small intestine, where they are transported into the bloodstream and distributed to the rest of the body.

Waste elimination: Amoeba eliminates waste products, such as carbon dioxide and ammonia, through diffusion across its cell membrane. In contrast, humans eliminate waste products through a complex system of excretory organs, including the kidneys, liver, and lungs.

In summary, while both amoeba and human beings obtain their nutrition from their environment, they do so through vastly different processes and systems. Amoeba has a simple mode of nutrition and digestion, while humans have a complex digestive system and nutrient requirements.

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