MCQ Science Curiosity Chapter 2 Class 8 CBSE Board

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The Invisible Living World: Beyond Our Naked Eye

1. What is the correct sequence of levels of organization in living organisms?

Question 1 of 20

2. What is the largest known single cell in the living world?

Question 2 of 20

3. What are organisms made up of just one or a few cells called?

Question 3 of 20

4. Which tool is used to observe microorganisms that cannot be seen with the naked eye?

Question 4 of 20

5. What is a foldscope?

Question 5 of 20

6. Which microorganism is unicellular and lacks a well-defined nucleus?

Question 6 of 20

7. What distinguishes viruses from other microorganisms?

Question 7 of 20

8. Why do pickles and murabbas resist microbial infection?

Question 8 of 20

9. What type of microorganisms are found in the root nodules of legumes?

Question 9 of 20

10. What gas is released by microorganisms during the decomposition of plant and animal waste?

Question 10 of 20

11. What is the role of microorganisms in Activity 2.7?

Question 11 of 20

12. What is the term for the process by which yeast makes dough soft and fluffy?

Question 12 of 20

13. Which microorganism is responsible for curd formation?

Question 13 of 20

14. Why does curd form faster in warm conditions?

Question 14 of 20

15. What is the primary function of microalgae in water?

Question 15 of 20

16. Which microalga is considered a superfood due to its high protein content?

Question 16 of 20

17. What is the approximate magnification of an electron microscope?

Question 17 of 20

18. What structure in bacterial cells replaces a well-defined nucleus?

Question 18 of 20

19. Which microorganism is used to make idli and dosa batter?

Question 19 of 20

20. What happens to the balloon in test tube B in the experiment described in question 2 on page 18?

Question 20 of 20


 

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