Nutrition in Animals — Class 7 Science NCERT Solutions (Free)

Free step-by-step NCERT solutions for Class 7 Science chapter "Nutrition in Animals" — 8 important questions with detailed answers for CBSE board exam preparation.

TL;DR: Free step-by-step NCERT solutions for Class 7 Science chapter "Nutrition in Animals" — 8 important questions with detailed answers for CBSE board exam…

By Syllab.in · Updated Jun 14, 2026

Key Questions Covered:

Define nutrition in animals.
What is the function of saliva in digestion?
Name the parts of the human alimentary canal in order.
What is the role of the stomach in digestion?
Where does absorption of food take place?
Describe the process of digestion of carbohydrates in the human body.
+ 2 more questions in the full chapter

Solutions Summary:

Question	Status
Define nutrition in animals.	✓ Solved
What is the function of saliva in digestion?	✓ Solved
Name the parts of the human alimentary canal in order.	✓ Solved
What is the role of the stomach in digestion?	✓ Solved
Where does absorption of food take place?	✓ Solved
Describe the process of digestion of carbohydrates in the…	✓ Solved

Showing 6 of 8 questions

Q1: Define nutrition in animals.

Nutrition in animals is the process of taking in food and converting it into energy and body components. It includes ingestion, digestion, absorption, and assimilation of food.

Q2: What is the function of saliva in digestion?

Saliva is secreted by salivary glands in the mouth. It contains the enzyme amylase which breaks down starch into simple sugars. It also lubricates food for easy swallowing.

Q3: Name the parts of the human alimentary canal in order.

The parts of the alimentary canal from top to bottom are: - Mouth → Oesophagus → Stomach → Small intestine → Large intestine → Rectum → Anus

Q4: What is the role of the stomach in digestion?

The stomach secretes gastric juices containing pepsin enzyme and hydrochloric acid. It breaks down proteins into simpler substances. It also churns food to form a semi-liquid paste called chyme.

Q5: Where does absorption of food take place?

Absorption of nutrients takes place mainly in the small intestine. The walls of the small intestine have finger-like projections called villi which increase the surface area. Villi contain blood vessels that absorb nutrients into the bloodstream.

Q6: Describe the process of digestion of carbohydrates in the human body.

Carbohydrates are broken down into glucose through digestion: - In mouth: Amylase (from saliva) breaks starch into maltose - In small intestine: Further breakdown by pancreatic enzymes and intestinal enzymes into glucose - Glucose is then absorbed and used for energy

Showing 6 of 8 questions. Visit the full page for complete solutions.