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  • Nutrition in Animals Class 7 Science Chapter 2 MCQ with Answers
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Nutrition in Animals Class 7 MCQs for Science Chapter 2 with Answers
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Nutrition in Animals Class 7 MCQs for Science Chapter 2 with Answers

By Maitree Choube

|

Updated on 28 Aug 2025, 12:37 IST

Explore our comprehensive collection of Nutrition in Animals Class 7 MCQs designed to enhance your understanding of Chapter 2 from the CBSE syllabus. This chapter delves into the fascinating ways animals, including humans, obtain and digest their food. Our Nutrition in Animals Class 7 MCQ with Answers is tailored to align with the NCERT guidelines and covers key concepts presented in your NCERT textbook.

As a bonus, we've also included links to Nutrition in Plants MCQ Class 7 with Answers to help students who are looking to review the entire scope of nutrition covered in their science curriculum. This Class 7 Science mcqs resource is a great way to prepare for your CBSE exams and ensure you're on track with the NCERT syllabus.

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Nutrition in Animals Class 7 Science Chapter 2 MCQ with Answers

Here are the topic wise of various nutrition in animals MCQ with answers:

Q1. Which teeth in humans are mainly used for cutting food?

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(a) Molars

(b) Premolars

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(c) Incisors

(d) Canines

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Answer: (c) Incisors

Q2. The finger-like projections inside the small intestine that absorb food are called:

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(a) Alveoli

(b) Villi

(c) Bronchi

(d) Papillae

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Answer: (b) Villi

Q3. Which enzyme in saliva helps to digest starch?

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(a) Pepsin

(b) Amylase

(c) Lipase

(d) Trypsin

Answer: (b) Amylase

Q4. The stomach secretes which acid to help digestion?

(a) Acetic acid

(b) Hydrochloric acid

(c) Sulphuric acid

(d) Nitric acid

Answer: (b) Hydrochloric acid

Q5. Which organ stores bile before releasing it into the small intestine?

(a) Pancreas

(b) Gall bladder

(c) Kidney

(d) Large intestine

Answer: (b) Gall bladder

Q6. Which part of the digestive system is the longest?

(a) Small intestine

(b) Large intestine

(c) Stomach

(d) Oesophagus

Answer: (a) Small intestine

Q7. The process by which undigested food is removed from the body is called:

(a) Ingestion

(b) Egestion

(c) Absorption

(d) Assimilation

Answer: (b) Egestion

Also Check: NCERT Solutions for Class 7 Science Chapter 2

Q8. Which animal uses a long, sticky tongue to catch insects?

(a) Cow

(b) Frog

(c) Rabbit

(d) Lion

Answer: (b) Frog

Q9. The liver helps in digestion by producing:

(a) Bile juice

(b) Saliva

(c) Pepsin

(d) Insulin

Answer: (a) Bile juice

Q10. Which organ produces digestive enzymes and insulin?

(a) Stomach

(b) Pancreas

(c) Kidney

(d) Gall bladder

Answer: (b) Pancreas

Q11. Amoeba digests its food in:

(a) Stomach

(b) Food vacuole

(c) Intestine

(d) NucleusAnswer: (b) Food vacuole

Q12. Which type of teeth help in tearing flesh in carnivores?

(a) Molars

(b) Premolars

(c) Incisors

(d) Canines

Answer: (d) Canines

Q13. What is the main function of villi in the small intestine?

(a) Produce enzymes

(b) Absorb digested food

(c) Digest proteins

(d) Store bile

Answer: (b) Absorb digested food

Q14. The grinding and chewing of food in the mouth is called:

(a) Peristalsis

(b) Mastication

(c) Assimilation

(d) Digestion

Answer: (b) Mastication

Q15. Which organ absorbs most of the water from undigested food?

(a) Small intestine

(b) Large intestine

(c) Stomach

(d) Pancreas

Answer: (b) Large intestine

Q16. The first step of digestion in humans starts in the:
(a) Stomach

(b) Mouth

(c) Small intestine

(d) Liver

Answer: (b) Mouth

Q17. The partially digested food in the stomach is called:

(a) Chyme (b) Chyle (c) Bolus (d) Villi 

Answer: (a) Chyme

Q18. Where does the digestion of proteins begin in humans?

a) Mouth

b) Stomach

c) Small intestine

d) Large intestine

Answer: b) Stomach

Q19. What substance does the liver secrete?

a) Pancreatic juice

b) Saliva

c) Bile

d) Gastric juice

Answer: c) Bile

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Q20. What role does hydrochloric acid play in the stomach?

a) It breaks down fats

b) It kills bacteria

c) It digests proteins

d) It absorbs vitamins

Answer: b) It kills bacteria

Q21. What does the pancreas secrete?

a) Bile

b) Pancreatic juice

c) Hydrochloric acid

d) Mucous

Answer: b) Pancreatic juice

Q22. What type of animals are known as ruminants?

a) Those that chew cud

b) Those that eat meat only

c) Those that eat plants only

d) Those that swallow food whole

Answer: a) Those that chew cud

Q23. What is the purpose of rumination in certain animals?

a) To digest meat more efficiently

b) To break down cellulose

c) To increase food intake

d) To cool down the body

Answer: b) To break down cellulose

Q24. How does an amoeba ingest food?

a) Through a mouth

b) Using pseudopodia

c) Through gills

d) By absorption through the skin

Answer: b) Using pseudopodia

Q25. Where is bile stored?

a) Liver

b) Gall bladder

c) Stomach

d) Pancreas

Answer: b) Gall bladder

Q26. What is the primary function of the large intestine?

a) To digest proteins

b) To absorb water and salts

c) To produce digestive enzymes

d) To store undigested food

Answer: b) To absorb water and salts

Q27. What is tooth decay primarily caused by?

a) Acids produced by bacteria

b) Swallowing too quickly

c) Eating too much protein

d) Lack of saliva

Answer: a) Acids produced by bacteria

Q28. Why should you rinse your mouth after eating?

a) To cool down the mouth

b) To remove food particles and reduce bacteria

c) To taste the food better

d) To prepare for the next meal

Answer: b) To remove food particles and reduce bacteria

Q29. What is a common symptom of food poisoning?

a) Coughing

b) Sneezing

c) Diarrhoea

d) Itching

Answer: c) Diarrhoea

Q30. What should be given to a person suffering from diarrhoea?

a) Cold drinks

b) Oral Rehydration Solution (ORS)

c) Hot tea

d) Milk

Answer: b) Oral Rehydration Solution (ORS)

Q31. How do ruminants digest cellulose?

a) Using their own enzymes

b) With the help of bacteria in the rumen

c) By chewing repeatedly

d) Through a long digestive tract

Answer: b) With the help of bacteria in the rumen

Q32. Why do infants feed on mother's milk?

a) It is easier to digest

b) It provides necessary nutrients

c) It is a tradition

d) It is more available than other foods

Answer: b) It provides necessary nutrients

Q33. What happens in the buccal cavity?

a) Absorption of nutrients

b) Digestion of fats

c) Ingestion and initial digestion of food

d) Storage of food

Answer: c) Ingestion and initial digestion of food

Q34. What is the role of the tongue in digestion?

a) To push food into the stomach

b) To detect taste and help in mixing food with saliva

c) To digest carbohydrates

d) To store saliva

Answer: b) To detect taste and help in mixing food with saliva

Q35. What causes the sensation of choking while eating?

a) Food entering the windpipe

b) Food being too hot

c) Allergic reactions to food

d) Overeating

Answer: a) Food entering the windpipe

Q36. What is the approximate length of the human alimentary canal?

a) 5 meters

b) 10 meters

c) 7 meters

d) 30 meters

Answer: c) 7 meters

Q37. What is the primary function of the gall bladder?

a) To produce bile

b) To store bile

c) To digest fats

d) To absorb nutrients

Answer: b) To store bile

Q38. Which part of the digestive system is involved in the absorption of nutrients?

a) Stomach

b) Small intestine

c) Large intestine

d) Esophagus

Answer: b) Small intestine

Q39. What part of the digestive system has a role in killing bacteria?

a) Small intestine

b) Large intestine

c) Stomach

d) Mouth

Answer: c) Stomach

Q40. Where are proteins first digested in the human body?

a) Mouth

b) Stomach

c) Small intestine

d) Large intestine

Answer: b) Stomach

Q41. Which teeth are used for tearing food?

a) Molars

b) Canines

c) Incisors

d) Premolars

Answer: b) Canines

Q42. What initiates the digestion of starch?

a) Gastric juices

b) Bile

c) Pancreatic juice

d) Saliva

Answer: d) Saliva

Q43. What is the primary function of the teeth?

a) To produce saliva

b) To aid in digestion by breaking down food

c) To absorb nutrients

d) To protect the tongue

Answer: b) To aid in digestion by breaking down food

Q44. What does rumination involve?

a) Regurgitating swallowed food to chew it again

b) Swallowing food quickly

c) Digesting cellulose

d) Absorbing nutrients in the stomach

Answer: a) Regurgitating swallowed food to chew it again

Q45. Why is it advised to brush your teeth after eating sweets?

a) To freshen breath

b) To prevent tooth decay

c) To make teeth whiter

d) To prevent gum diseases

Answer: b) To prevent tooth decay

Q46. What causes diarrhoea?

a) Virus infection

b) Bacterial infection

c) Overeating

d) Both a and b

Answer: d) Both a and b

Q47. How does food move through the esophagus?

a) By gravity

b) By peristaltic movements

c) By active transport

d) By passive diffusion

Answer: b) By peristaltic movements

Q48. What is the first set of teeth called?

a) Permanent teeth

b) Baby teeth

c) Milk teeth

d) Temporary teeth

Answer: c) Milk teeth

Q49. Which part of the digestive system is the site for complete digestion of carbohydrates, fats, and proteins?

a) Stomach

b) Small intestine

c) Large intestine

d) Mouth

Answer: b) Small intestine

Q50. What is egestion?

a) Absorption of nutrients

b) Ingestion of food

c) Excretion of undigested food

d) Digestion of food

Answer: c) Excretion of undigested food

Nutrition in Animals Class 7 Science Chapter 2 FAQs

What is nutrition in animals?

Nutrition in animals refers to the process by which they obtain and utilize food to support growth, energy, and overall health.

What are the types of nutrition in animals?

There are two main types of nutrition in animals: 

  • Autotrophic Nutrition: Where organisms produce their own food (e.g., plants).
  • Heterotrophic Nutrition: Where animals obtain food from other organisms.

What are the different modes of heterotrophic nutrition?

The different modes of heterotrophic nutrition include: Herbivores: Animals that eat plants (e.g., cows, rabbits). Carnivores: Animals that eat other animals (e.g., lions, eagles). Omnivores: Animals that eat both plants and animals (e.g., humans, bears).

What is the role of the digestive system in nutrition?

The digestive system breaks down food into smaller, absorbable components, allowing nutrients to enter the bloodstream and be used by the body.

What are the main components of food that animals need?

Animals need carbohydrates, proteins, fats, vitamins, and minerals for energy, growth, and overall health.

What is the importance of a balanced diet for animals?

A balanced diet is crucial for maintaining health, supporting growth, and preventing diseases. It ensures that animals receive all essential nutrients.

How does the process of nutrition differ among various animal groups?

"Different animal groups have evolved unique adaptations for nutrition based on their diets, habitats, and feeding mechanisms, influencing their digestive processes.

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