Class 9 CBSE
Chapter: The Fundamental Unit of Life (Cell)
Multiple Choice Questions (MCQs)
Q1. Who discovered the cell for the first time in 1665?
a) Robert Hooke b) Anton van Leeuwenhoek c) Robert Brown d) Rudolf Virchow
Q2. Who proposed that all plants are made up of cells?
a) Robert Hooke b) Matthias Schleiden c) Theodor Schwann d) Rudolf Virchow
Q3. Who observed free-living cells in pond water for the first time?
a) Robert Brown b) Anton van Leeuwenhoek c) Rudolf
Virchow d) Matthias Schleiden
Q4. The idea that "all cells arise from pre-existing cells" was proposed by:
a) Robert Hooke b) Anton van Leeuwenhoek
c) Rudolf Virchow d) Matthias Schleiden
Q5. Which of the following is a prokaryotic cell?
a) Amoeba b) Bacterium c) Paramecium d) Yeast
Q6. Cells lacking a well-defined nucleus are called:
a) Eukaryotic cells b) Prokaryotic cells c) Animal cells d) Plant cells
Q7. Which of the following is a eukaryotic organism?
a) Escherichia coli b) Cyanobacteria c) Amoeba d) Mycoplasma
Q8. The cell theory was jointly proposed by:
a) Schleiden and Virchow b) Schwann and Virchow
c) Schleiden and Schwann d) Schwann and Hooke
Q9. Which of the following statements is NOT true about prokaryotic cells?
a) They lack a true nucleus. b) They have membrane-bound organelles.
c) They have a cell membrane and cytoplasm. d) DNA is present in the cytoplasm.
Q10. Which of the following is a correct classification based on the number of cells?
a) Yeast is multicellular. b) Bacteria is unicellular.
c) Mango tree is unicellular. d) Amoeba is multicellular.
(Short Answer Type-I) 2-Marks type Questions (Answer in 30–50 words)
Q1. Why is the plasma membrane called a selectively permeable membrane?
Ans:
The plasma membrane is called selectively permeable because it allows only certain substances (like
oxygen, nutrients, and waste) to pass through while preventing others. This helps maintain the internal
environment of the cell.
Q2. Differentiate between prokaryotic and eukaryotic cells (any 6 points).
Ans:
Feature Prokaryotic Cell Eukaryotic Cell
1. Nucleus Absent (nucleoid region Present, with nuclear membrane
Chapter: The Fundamental Unit of Life (Cell)
Multiple Choice Questions (MCQs)
Q1. Who discovered the cell for the first time in 1665?
a) Robert Hooke b) Anton van Leeuwenhoek c) Robert Brown d) Rudolf Virchow
Q2. Who proposed that all plants are made up of cells?
a) Robert Hooke b) Matthias Schleiden c) Theodor Schwann d) Rudolf Virchow
Q3. Who observed free-living cells in pond water for the first time?
a) Robert Brown b) Anton van Leeuwenhoek c) Rudolf
Virchow d) Matthias Schleiden
Q4. The idea that "all cells arise from pre-existing cells" was proposed by:
a) Robert Hooke b) Anton van Leeuwenhoek
c) Rudolf Virchow d) Matthias Schleiden
Q5. Which of the following is a prokaryotic cell?
a) Amoeba b) Bacterium c) Paramecium d) Yeast
Q6. Cells lacking a well-defined nucleus are called:
a) Eukaryotic cells b) Prokaryotic cells c) Animal cells d) Plant cells
Q7. Which of the following is a eukaryotic organism?
a) Escherichia coli b) Cyanobacteria c) Amoeba d) Mycoplasma
Q8. The cell theory was jointly proposed by:
a) Schleiden and Virchow b) Schwann and Virchow
c) Schleiden and Schwann d) Schwann and Hooke
Q9. Which of the following statements is NOT true about prokaryotic cells?
a) They lack a true nucleus. b) They have membrane-bound organelles.
c) They have a cell membrane and cytoplasm. d) DNA is present in the cytoplasm.
Q10. Which of the following is a correct classification based on the number of cells?
a) Yeast is multicellular. b) Bacteria is unicellular.
c) Mango tree is unicellular. d) Amoeba is multicellular.
(Short Answer Type-I) 2-Marks type Questions (Answer in 30–50 words)
Q1. Why is the plasma membrane called a selectively permeable membrane?
Ans:
The plasma membrane is called selectively permeable because it allows only certain substances (like
oxygen, nutrients, and waste) to pass through while preventing others. This helps maintain the internal
environment of the cell.
Q2. Differentiate between prokaryotic and eukaryotic cells (any 6 points).
Ans:
Feature Prokaryotic Cell Eukaryotic Cell
1. Nucleus Absent (nucleoid region Present, with nuclear membrane
