Holozoic Nutrition


 
 
Concept Explanation
 

Holozoic Nutrition

Holozoic:

In this method of heterotrophic nutrition, complex organic substances are ingested (taken in) without their being degraded. After intake such food is digested by enzymes produced within the organisms. Digested food is absorbed into the body and the undigested food is egested (expelled) from the body. This kind of nutrition is found in non – parasitic animals like amoeba and human beings.

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Sample Questions
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Question : 1

Which of the following are correct ?

(a) In Heterotrophic nutrition, complex organic substances are ingested (taken in) without their being degraded. After intake such food is digested by enzymes produced within the organisms.

(b) Digested food is absorbed into the body and the undigested food is egested (expelled) from the body.

(c) Holozoic nutrition is found in  parasitic animals like paramecium and human beings .

Right Option : A
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Question : 2

Which of the following are correct about holozoic nutrition?

(a) In this method of heterotrophic nutrition, complex organic substances are ingested (taken in) without their being degraded. 

(b) After intake such food is digested by enzymes produced within the organisms.

Right Option : C
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Explanation
Question : 3

Which of the following are correct ?

(a) Digested food is absorbed into the body and the undigested food is egested (expelled) from the body.

(b) Holozoic nutrition is found in non – parasitic animals like amoeba and human beings.

 (c) In holozoic nutrition, the digestion of food follows after the ingestion of food. Thus, digestion takes place inside the body of the organism.

Right Option : D
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Explanation
 
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