Structure of Cells Quiz - CBSE Class 11 Biology

Free practice quiz: Structure of Cells (CBSE Class 11 Biology). 39 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 11 Biology practice quiz has 39 multiple-choice questions on Structure of Cells. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Which organelle is known as the powerhouse of the cell?

   1. Nucleus
   2. Mitochondria
   3. Endoplasmic reticulum
   4. Golgi apparatus
   Show answer

   Answer: B. Mitochondria

2. What is the jelly-like substance inside the cell called?

   1. Nucleoplasm
   2. Cytoplasm
   3. Chloroplast
   4. Serum
   Show answer

   Answer: B. Cytoplasm

3. What term describes the combination of organelles and cytoplasm that make up the living part of the cell?

   1. Cell sap
   2. Protoplasm
   3. Extracellular matrix
   4. Cytoskeleton
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   Answer: B. Protoplasm

4. What structure is known as the powerhouse of the cell?

   1. Endoplasmic reticulum
   2. Nucleus
   3. Mitochondria
   4. Golgi apparatus
   Show answer

   Answer: C. Mitochondria

5. What differentiates plant cells from animal cells?

   1. Presence of ribosomes
   2. Presence of chloroplasts
   3. Lack of a nucleus
   4. Smaller size
   Show answer

   Answer: B. Presence of chloroplasts

More questions in this quiz

Answers and explanations are in the full quiz.

1. What is the role of the cell membrane?
2. Which component of the cell is responsible for protein synthesis?
3. What structure is found in plant cells but not in animal cells?
4. What is the function of the Golgi apparatus?
5. Which structure controls cell activities and contains genetic material?
6. Which of the following best describes lysosomes?
7. What type of cell structure is the cell wall?
8. Which of the following structures is involved in the synthesis of lipids?
9. Which component provides structural support to the cell?
10. What is the primary function of the rough endoplasmic reticulum?
11. What feature distinguishes prokaryotic cells from eukaryotic cells?
12. Identify the structure responsible for maintaining the osmotic balance of the cell.
13. Which of the following is not a function of the cell membrane?
14. Which structure is responsible for detoxifying substances in the liver cells?
15. What is the role of centrosomes in a cell?
16. What is the significance of the fluid mosaic model of the cell membrane?
17. What is the basic unit of life?
18. Which part of the cell contains the genetic material?
19. What is the function of the cell membrane?
20. Which organelle is responsible for protein synthesis?
21. What is the jelly-like substance inside the cell that supports organelles?
22. In plant cells, which organelle is responsible for photosynthesis?
23. What role does the Golgi apparatus play in the cell?
24. Which structure regulates the movement of ions and molecules into and out of the cell?
25. What is the primary function of lysosomes?
26. Which type of cell has a defined nucleus?
27. What is the role of the endoplasmic reticulum in the cell?
28. How does the structure of the cell membrane contribute to its function?
29. Which of the following structures is involved in cell movement?
30. What is the function of the vacuole in plant cells?
31. How does the structure of mitochondria relate to its function?
32. How do prokaryotic cells differ from eukaryotic cells in terms of structure?
33. What organelle is responsible for processing and packaging proteins?
34. Which component of the cytoskeleton is involved in maintaining the shape of the cell?

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