Class 11 Biology MCQ Chapter 8 Cell the Unit of Life
Looking for Class 11 Biology MCQ Chapter 8 Cell: The Unit of Life English Medium? This article offers a valuable collection of important multiple-choice questions (MCQs) with answers for AHSEC Higher Secondary First Year students.
The chapter Cell: The Unit of Life introduces students to the basic structural and functional unit of all living organisms. It explains the discovery of cells, cell theory, prokaryotic and eukaryotic cells, cell organelles, plasma membrane, nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, ribosomes, and other important cell components. Understanding this chapter is essential because it forms the foundation of modern Biology.
These MCQ questions are prepared according to the latest AHSEC syllabus and are designed to help students revise important concepts in a simple and effective way. Regular practice will improve understanding, increase confidence, and help students perform better in examinations.
Whether you are preparing for a school examination, annual test, or the AHSEC HS First Year Examination, these MCQ solutions will help you strengthen your knowledge and achieve better results in Biology.
Unit III. Cell Structure and Function
Cell the Unit of Life
VSA & MCQ
I. Short Answer Questions (1 Mark Each)
Q1. What is a cell?
Ans: It is the basic structural and functional unit of life.
Q2. Who discovered the cell?
Ans: Robert Hooke discovered the cell.
Q3. Who proposed the cell theory?
Ans: Matthias Schleiden and Theodor Schwann proposed it.
Q4. What did Rudolf Virchow state?
Ans: Cells arise from pre-existing cells.
Q5. What is a prokaryotic cell?
Ans: A cell without a true nucleus and membrane-bound organelles.
Q6. What is a eukaryotic cell?
Ans: A cell with a true nucleus and membrane-bound organelles.
Q7. What is plasma membrane?
Ans: A selectively permeable membrane surrounding the cell.
Q8. What is cytoplasm?
Ans: The fluid matrix inside the cell containing organelles.
Q9. What is nucleus?
Ans: Control center of the cell containing genetic material.
Q10. What are mitochondria?
Ans: Organelles that produce energy (ATP).
Q11. What is ribosome?
Ans: It is the site of protein synthesis.
Q12. What is endoplasmic reticulum?
Ans: A network involved in synthesis and transport of materials.
Q13. What is Golgi apparatus?
Ans: It modifies, packages and secretes substances.
Q14. What are lysosomes?
Ans: Organelles containing digestive enzymes.
Q15. What is vacuole?
Ans: A storage organelle containing cell sap.
II. Multiple Choice Questions (MCQs)
Q1. Cell was discovered by
(a) Robert Hooke
(b) Robert Brown
(c) Rudolf Virchow
(d) Antonie van Leeuwenhoek
Ans: (a)
Q2. Cell theory was proposed by
(a) Charles Darwin
(b) Schleiden and Schwann
(c) Mendel
(d) Hooke
Ans: (b)
Q3. Prokaryotic cells lack
(a) Cytoplasm
(b) Ribosomes
(c) Nucleus
(d) Cell membrane
Ans: (c)
Q4. Plasma membrane is
(a) Impermeable
(b) Semi-permeable
(c) Rigid
(d) Non-living
Ans: (b)
Q5. Mitochondria are known as
(a) Powerhouse
(b) Brain
(c) Skeleton
(d) Skin
Ans: (a)
Q6. Ribosomes help in
(a) Respiration
(b) Digestion
(c) Protein synthesis
(d) Storage
Ans: (c)
Q7. Golgi apparatus functions in
(a) Respiration
(b) Packaging
(c) Digestion
(d) Movement
Ans: (b)
Q8. Lysosomes contain
(a) DNA
(b) Enzymes
(c) RNA
(d) Water
Ans: (b)
Q9. Vacuole stores
(a) Oxygen
(b) Cell sap
(c) DNA
(d) Protein
Ans: (b)
Q10. Nucleus contains
(a) Lipids
(b) Chromatin
(c) Enzymes
(d) Water
Ans: (b)
Q11. Smooth ER helps in
(a) Protein synthesis
(b) Lipid synthesis
(c) Digestion
(d) Respiration
Ans: (b)
Q12. Rough ER has
(a) Ribosomes
(b) DNA
(c) Lipids
(d) Water
Ans: (a)
Q13. Cell wall is present in
(a) Animal cell
(b) Plant cell
(c) Both
(d) None
Ans: (b)
Q14. Centrioles are found in
(a) Plant cells
(b) Animal cells
(c) Both
(d) Bacteria
Ans: (b)
Q15. Diffusion is movement of molecules from
(a) Low to high concentration
(b) High to low concentration
(c) Equal concentration
(d) None
Ans: (b)
Q16. Osmosis involves movement of
(a) Solute
(b) Solvent
(c) Gas
(d) Protein
Ans: (b)
Q17. Cell membrane is made of
(a) Protein only
(b) Lipid only
(c) Lipid and protein
(d) Carbohydrate only
Ans: (c)
Q18. Chromosomes are found in
(a) Cytoplasm
(b) Nucleus
(c) Membrane
(d) Vacuole
Ans: (b)
Q19. Prokaryotic cells are
(a) Large
(b) Complex
(c) Small
(d) Multicellular
Ans: (c)
Q20. ATP is produced in
(a) Nucleus
(b) Mitochondria
(c) Ribosome
(d) Golgi body
Ans: (b)
