Unit Test: Life Processes in Animals | Science (Curiosity) Class 7 - New NCERT PDF Download

Time: 1 Hour
Maximum Marks: 30

Instructions:

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 and 13 carry 5 marks each.

Q1. Where does digestion begin in the human body? (1 Mark)
a) Stomach
b) Mouth
c) Small intestine
d) Large intestine

Q2. What is the wave-like motion that moves food through the food pipe called? (1 Mark)
a) Egestion
b) Peristalsis
c) Respiration
d) Absorption

Q3. What tiny sacs in the lungs help with gas exchange? (1 Mark)
a) Villi
b) Alveoli
c) Diaphragm
d) Gizzard

​Q4. Which animals use gills to breathe? (1 Mark)
a) Birds
b) Fish
c) Earthworms
d) Cows

​Q5. What does the large intestine mainly do in digestion? (1 Mark)
a) Breaks down proteins
b) Absorbs nutrients
c) Absorbs water
d) Produces bile

​Q6. What is mechanical digestion, and where does it happen in humans? (2 Mark)

​​Q7. What are villi, and why are they important in the small intestine? (2 Mark)

​Q8. How do birds digest food without teeth? (2 Mark)

​Q9. How does peristalsis help move food through the digestive system? Give an example from the human body. (3 Mark)

​Q10. What is the role of bile in the small intestine, and why is it important for digestion? (3 Mark)

​Q11. How does the large intestine work, and why are fiber-rich foods important for it? (3 Mark)

​Q12. Explain how amphibians like frogs breathe differently from humans. (5 Mark)

Q13. Explain the process of digestion in humans, covering the roles of the mouth, stomach, and small intestine. Describe one way to maintain healthy digestion. (5 Mark)

You can find the solutions of this Unit Test here: Unit Test Solutions: Life Processes in Animals

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