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.

Sample questions

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

   1. Nucleus
   2. Mitochondria
   3. Endoplasmic reticulum
   4. Golgi apparatus
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   Answer: B. Mitochondria

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

   1. Nucleoplasm
   2. Cytoplasm
   3. Chloroplast
   4. Serum
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   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
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   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
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   Answer: B. Presence of chloroplasts

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