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#1 | Introduction to Digestive System
(Zoology) > Digestion and Absorption (OLD NCERT)

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Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of 

1. diaphragm

2. neck

3. tongue

4. epiglottis

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Which of the following components of our food are taken in small quantities?

(1) Carbohydrate and proteins

(2) Proteins and minerals

(3) Proteins and lipids                           

(4) Minerals and vitamins

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What does food provide?
a. Energy
b. Organic material
c. Heat
d. More than one option is correct

 78%
Level 2: 60%+
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Which of the following is required in small quantities?

(1) Vitamins

(2) Glucose

(3) amino acids

(4) Fatty acids

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Which of the following plays an important role in all metabolic processes not being a major substrate?

(1) Water

(2) Amino acids

(3) Glycerol

(4) Glucose

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Level 2: 60%+
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