Holozoic Nutrition

Question 1

What is holozoic nutrition?

Answer 1

Holozoic nutrition is a type of heterotrophic nutrition where organisms, like mammals, ingest organic food and process it through ingestion, digestion, absorption, assimilation, and egestion.

Question 2

What are the five stages of holozoic nutrition?

Answer 2

Ingestion, Digestion, Absorption, Assimilation, and Egestion.

Question 3

What is ingestion?

Answer 3

Ingestion is the act of taking in food, such as placing food into the mouth in humans.

Question 4

What is digestion?

Answer 4

Digestion is the process of breaking down large, complex, insoluble food molecules into small, simple, soluble ones. It involves both physical breakdown by teeth and chemical breakdown by enzymes.

Question 5

What is absorption in nutrition?

Answer 5

Absorption is the diffusion of soluble food molecules like glucose, amino acids, fatty acids, glycerol, vitamins, minerals, and water into the bloodstream.

Question 6

What is assimilation in nutrition?

Answer 6

Assimilation is when absorbed food molecules are taken from the blood and used by body cells for respiration, growth, and development.

Question 7

What is egestion?

Answer 7

Egestion is the removal of undigested parts of food from the body. It is also called defecation.