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Unit Test: Nutrition in Animals | Science Class 7 (Old NCERT) PDF Download

Time: 1 hour
Maximum Marks: 30

Attempt all questions.
Question numbers 1 to 5 carry 1 mark each.
Question numbers 6 to 8 carry 2 marks each.
Question numbers 9 to 11 carry 3 marks each.
Question numbers 12 & 13 carry 5 marks each.

Q1: Fill in the blank: The process of breaking down complex food substances into simpler forms is called __________. (1 Mark)

Q2: Which of the following is a mode of feeding for a butterfly? (1 Mark)
(i) Scraping
(ii) Chewing
(iii) Siphoning
(iv) Sponging

Q3: Match the following:

Unit Test: Nutrition in Animals | Science Class 7 (Old NCERT)

Q4: True or False: Digestion of proteins starts in the small intestine.(1 Mark)

Q5: Why is the villi structure important in the small intestine? (1 Mark)

Q6: Diagram-Based Question: (2 Marks)
Unit Test: Nutrition in Animals | Science Class 7 (Old NCERT)

Label the following parts in and name them:
(a) The largest gland in our body.
(b) The organ where protein digestion starts.
(c) The organ that releases digestive juice into the small intestine.
(d) The organ where bile juice gets stored.

Q7: Label the following parts in and name them:

(i) The cutting and biting teeth as ‘A’
(ii) The piercing and tearing teeth as ‘B’
(iii) The grinding and chewing teeth as ‘C’
(iv) The grinding teeth present only in adult as ‘D'

Unit Test: Nutrition in Animals | Science Class 7 (Old NCERT)Q8: What are ruminants, and how do they digest cellulose? (2 Marks)

Q9: List six parts of the human digestive system involved in digestion and their functions.(3 Marks)

Q10: Explain the role of enzymes in the process of digestion and provide examples. (3 Marks)

Q11: What happens to food in the stomach during digestion? (3 Marks)

Q12: Describe the process of digestion in the small intestine and its importance. (5 Marks)

Q13: Compare the digestion process in amoeba and humans. (5 Marks)

​You can find the solutions of this Unit Test here: ​Unit Test (Solution): Nutrition in Animals​​​

The document Unit Test: Nutrition in Animals | Science Class 7 (Old NCERT) is a part of the Class 7 Course Science Class 7 (Old NCERT).
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FAQs on Unit Test: Nutrition in Animals - Science Class 7 (Old NCERT)

1. What are the main types of nutrition in animals?
Ans. The main types of nutrition in animals are autotrophic and heterotrophic nutrition. Autotrophic animals can produce their own food, typically seen in some microorganisms, while heterotrophic animals rely on consuming other organisms for their nutritional needs.
2. How do herbivores obtain their nutrition?
Ans. Herbivores obtain their nutrition by consuming plant materials. They have specialized digestive systems that allow them to break down cellulose found in plant cell walls, enabling them to extract the necessary nutrients from their food.
3. What role does digestion play in animal nutrition?
Ans. Digestion is crucial in animal nutrition as it involves breaking down complex food substances into simpler forms that can be absorbed by the body. This process ensures that animals can utilize nutrients effectively for energy, growth, and maintenance.
4. How do carnivores differ in their nutritional needs compared to herbivores?
Ans. Carnivores primarily consume other animals and have adaptations such as sharp teeth and a shorter digestive tract, which are suited for processing meat. In contrast, herbivores have flat teeth for grinding plants and a longer digestive tract to facilitate the breakdown of fibrous plant materials.
5. What is the significance of a balanced diet for animals?
Ans. A balanced diet is significant for animals as it provides all essential nutrients, including proteins, carbohydrates, fats, vitamins, and minerals, necessary for maintaining health, supporting growth, and ensuring proper functioning of bodily systems.
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