This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 8 Cell The Unit Of Life – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... first explained that cells divides, and new cells are formed from pre-existing cells. A) Anton von Leeuwenhoek. B) Robert Brown. C) Matthias Schleiden. D) Rudolf Virchow. Show Answer Correct Answer: D) Rudolf Virchow. 2. Non-pigmented part of chloroplast is called: A) Grana. B) Lamellae. C) Stroma. D) Thylakoids. Show Answer Correct Answer: C) Stroma. 3. Which illustrates the levels of organization from SMALLEST TO LARGEST? A) Cell-tissue-organ-organ system-organism. B) Tissue-cell-organ system-organ-organism. C) Cell-tissue-organ system-organism-organ. D) Organism-organ system-organ-tissue-cell. Show Answer Correct Answer: A) Cell-tissue-organ-organ system-organism. 4. The size of the mycoplasms cell is A) 1 micrometer. B) 0.3 micrometer. C) 7.0 Micrometer. D) 0.5 micrometer. Show Answer Correct Answer: B) 0.3 micrometer. 5. Cell is the fundamental structural and functional unit of all living organisms is evidenced by the facts like- A) Any thing less than a complete structure of a cell does not ensure independent living. B) Subcellular components can regenerate whole cell. C) A cell arises by fusion of two cells. D) All cells are totipotent. Show Answer Correct Answer: A) Any thing less than a complete structure of a cell does not ensure independent living. 6. Arrange the following cells in an ascending order of their sizes-I. MycoplasmaII. Ostrich eggIII. Human RBCIV. Bacteria A) I, IV, III, II. B) IV, III, II, I. C) II, IV, I, III. D) I, II, III, IV. Show Answer Correct Answer: A) I, IV, III, II. 7. Which of the following is a smallest cell and is a member of kingdom Monera? A) Prions. B) Escherichia coli. C) Lichens. D) Mycoplasma. Show Answer Correct Answer: D) Mycoplasma. 8. Ribosome in prokaryotes A) 50S+20S. B) 80S. C) 50S+30S. D) 60S+40S. Show Answer Correct Answer: C) 50S+30S. 9. Eukaryotic cells have a well organized nucleus and-I) both 70 S & 80 S type of ribosomes.II)Flagella with 9+0 arrangementIII) DNA complexed with histones to form chromatinIV) complex cytoskeletal filament A) I, III & IV. B) II, III & IV. C) I, II & IV. D) III & IV. Show Answer Correct Answer: A) I, III & IV. 10. The ..... in a cell are involved in many functions such as mechanical support, motility, maintenance of the shape of the cell. A) Microbodies. B) Cell wall. C) Plasma membrane. D) Cytoskeleton. Show Answer Correct Answer: D) Cytoskeleton. 11. Assertion:Schleiden and Schwann were the first to observe the cells and to put forward thecell theory.Reason:The cells are always living unit. A) If both the assertion and the reason are true and the reason is a correct explanation of theassertion. B) If both the assertion and reason are true but the reason is not a correct explanation of theassertion. C) If the assertion is true but the reason is false. D) If both the assertion and reason are false. Show Answer Correct Answer: D) If both the assertion and reason are false. 12. Microtubules are the constituents of A) Cilia, flagella and peroxisomes. B) Spindle fibres, centrioles and cilia. C) Centrioles, spindle fibres and chromatin. D) Centrosome, nucleosome and centrioles. Show Answer Correct Answer: B) Spindle fibres, centrioles and cilia. 13. Non-membranous organelles are ..... A) Ribosomes. B) Centrioles. C) Nucleolus. D) All of these. Show Answer Correct Answer: D) All of these. 14. The inner compartment of mitochondria is called the ..... A) Cristae. B) Matrix. C) Cisternae. D) Lacunae. Show Answer Correct Answer: B) Matrix. 15. *Who gave cell theory? A) *a. Schleiden and Schwann.*. B) B. Rudolf Virchow. C) *c. Watson and crick. D) *d. Leeuwenhoek. Show Answer Correct Answer: A) *a. Schleiden and Schwann.*. 16. Microtubules are made of ..... A) Actin. B) Keratin. C) Dynenin. D) Tubulin. Show Answer Correct Answer: D) Tubulin. 17. Dark reaction of photosynthesis occurs in: A) Stroma. B) Matrix. C) Grana. D) Thylakoid. Show Answer Correct Answer: A) Stroma. 18. The rigid outer covering of a plant cell that gives is structure A) Cell Wall. B) Ribosome. C) Golgi Apparatus. D) Rough Endoplasmic Reticulum. Show Answer Correct Answer: A) Cell Wall. 19. Viruses are not considered living because they lack: A) Protein coat. B) DNA. C) RNA. D) Metabolism. Show Answer Correct Answer: D) Metabolism. 20. Which one of the cell organelles is correctly matched with its function? A) Mitochondria-secretion of enzymes. B) Ribosomes-Synthesis of proteins. C) Centrosome-carries genes. D) Plasma membrane-freely permeable. Show Answer Correct Answer: B) Ribosomes-Synthesis of proteins. 21. In animal cells lipid-like steroidal hormones are synthesised in ..... A) Tonoplast. B) Nucleolus. C) RER. D) SER. Show Answer Correct Answer: D) SER. 22. Plasma membrane is absent in A) Animal cell. B) Plant cell. C) Prokaryotic cell. D) None of these. Show Answer Correct Answer: D) None of these. 23. ..... organ helps in circulation of blood A) Brain. B) Liver. C) Kidney. D) Heart. Show Answer Correct Answer: D) Heart. 24. Which element mainly occurs in the middle lamella? A) K. B) Na. C) Ca. D) Mg. Show Answer Correct Answer: C) Ca. 25. The outer and inner nuclear membrane are separated by ..... in perinuclear space A) 1-5 nm. B) 10-50 nm. C) 10-50 A. D) 1-5 A. Show Answer Correct Answer: B) 10-50 nm. 26. Assertion:DNA is associated with proteins.Reason:DNA binds around histone protein that form a pool and the entire structure is calleda nucleosome. A) If both the assertion and the reason are true and the reason is a correct explanation of theassertion. B) If both the assertion and reason are true but the reason is not a correct explanation of theassertion. C) If the assertion is true but the reason is false. D) If both the assertion and reason are false. Show Answer Correct Answer: A) If both the assertion and the reason are true and the reason is a correct explanation of theassertion. 27. Lysosome along with the food content is called ..... A) Residual bodies. B) Primary lysosome. C) Cytosome. D) Secondary lysosome. Show Answer Correct Answer: D) Secondary lysosome. 28. Metabolic intermediates found in living system which are essential for growth and life is called ..... A) Secondary metabolite. B) Saponins. C) Primary metabolites. D) Tannins. Show Answer Correct Answer: C) Primary metabolites. 29. The best material for the study of structure of cell membrane is A) RBC of human. B) Kidney cell. C) Liver cell. D) Muscle cell. Show Answer Correct Answer: A) RBC of human. 30. With reference to Gram staining, select the correct statement A) The bacterial smear observed blue in the microscope is gram negative. B) Crystal violet is used as Mordant. C) Primary stain is Crystal violet. D) Primary stain used is safranin. Show Answer Correct Answer: C) Primary stain is Crystal violet. 31. Who gave final shape to cell theory? A) Leeuwenhoek. B) Virchow. C) Schwann. D) Schleiden. Show Answer Correct Answer: B) Virchow. 32. Which of the following is correct sequence of modification & transport of secretory vesicles? A) SER$\rightarrow$golgi body$\rightarrow$Cell, membran$\rightarrow$secretory vesicles. B) RER$\rightarrow$ cell membrane$\rightarrow$Secretory vesicles$\rightarrow$golgi body. C) RER$\rightarrow$Cell membrane$\rightarrow$secretory vesicles$\rightarrow$ golgi body. D) RER$\rightarrow$golgibody$\rightarrow$secretory vesicles$\rightarrow$cell membrane. Show Answer Correct Answer: D) RER$\rightarrow$golgibody$\rightarrow$secretory vesicles$\rightarrow$cell membrane. 33. Mitochondria supply most of the necessary biological energy through: A) Reducing NADP. B) Breaking down proteins. C) Oxidizing substrates of the TCA cycle. D) Breaking down lipids. Show Answer Correct Answer: C) Oxidizing substrates of the TCA cycle. 34. The most abundant lipid in the cell membrane is A) Steroids. B) Phosphoglycerides. C) Glycolipid. D) Cutin. Show Answer Correct Answer: B) Phosphoglycerides. 35. You observed something unusal in a dividing cell under microscope that spindle fibers are unble to attach to chromosomes. What can be the possible reason for such observation? A) Presence of secondary constriction on chromosomes. B) Absense of Protein disc on centromere. C) All the above. D) None of the above. Show Answer Correct Answer: B) Absense of Protein disc on centromere. 36. Central vacuole is prominent in: A) Prokaryotes. B) Animal cells. C) Plant cells. D) Fungi only. Show Answer Correct Answer: C) Plant cells. 37. Chromatin is mainly a complex of: A) Ribozyme & RNA. B) DNA & Histones. C) RNA & Histones. D) RNA & DNA. Show Answer Correct Answer: B) DNA & Histones. 38. Light reaction of photosynthesis occurs in: A) Stroma. B) Matrix. C) Thylakoid. D) Cristae. Show Answer Correct Answer: C) Thylakoid. 39. The ribosomes are made up of: A) DNA + Protein. B) RNA + Protein. C) DNA + RNA. D) None of the above. Show Answer Correct Answer: B) RNA + Protein. 40. Which one of the following is not considered as a part of the endomembrane system? A) Vacuoles. B) Golgi complex. C) Peroxisomes. D) Lysosomes. Show Answer Correct Answer: C) Peroxisomes. 41. Which of the following stains is not used for staining chromosomes? A) Carmine. B) Basic Fuchsin. C) Methylene green. D) Safranin. Show Answer Correct Answer: D) Safranin. 42. In r-RNA, "r" stands for: A) Ribozyme. B) Ribosomal. C) Ribophorins. D) SRP. Show Answer Correct Answer: B) Ribosomal. 43. Movement against concentration gradient occurs by: A) Passive transport. B) Diffusion. C) Active transport. D) Osmosis. Show Answer Correct Answer: C) Active transport. 44. ..... are granular structures first observed under electron microscope as dense particles by ..... (1955). A) Lysosomes, de Duve. B) Ribosomes, Perner. C) Ribosomes, George Palade. D) Peroxisomes, de Duve. Show Answer Correct Answer: C) Ribosomes, George Palade. 45. Centrosome is found in ..... A) Nucleus. B) Chromosomes. C) Cytoplasm. D) Nucleolus. Show Answer Correct Answer: C) Cytoplasm. 46. Lysosomes are absent in: A) WBC. B) Liver cells. C) Neurons. D) RBC. Show Answer Correct Answer: D) RBC. 47. ..... is an organelle usually containing two cylindrical structures called ..... A) Centrosome, axoneme. B) ER, cisternae. C) Centrosome, centriole. D) Golgi, tubular structures. Show Answer Correct Answer: C) Centrosome, centriole. 48. Prokaryotic cells are generally ..... and multiply ..... than the eukaryotic cells. A) Smaller, slower. B) Larger, slower. C) Smaller, faster. D) Larger, faster. Show Answer Correct Answer: C) Smaller, faster. 49. Where is the respiratory electron transport system (ETS) located in plants? A) Outer mitochondrial membrane. B) Inner mitochondrial membrane. C) Intermembrane space. D) Mitochondrial matrix. Show Answer Correct Answer: B) Inner mitochondrial membrane. 50. Eukaryotic DNA is: A) Circular. B) Naked. C) Linear and histone bound. D) Circular and naked. Show Answer Correct Answer: C) Linear and histone bound. 51. What provides the shape for the prokaryote? A) Cell wall. B) Cell membrane. C) Capsule. D) Cytoplasm. Show Answer Correct Answer: A) Cell wall. 52. Which type of protein is found in nucleus ..... A) Simple protein. B) Conjugated protein. C) Derived protein. D) Structural protein. Show Answer Correct Answer: B) Conjugated protein. 53. Name the structure in a plant cell which has this function:protects and maintains cell shape. A) Cell wall. B) Cytoplasm. C) Cell membrane. D) Nucleus. Show Answer Correct Answer: A) Cell wall. 54. Which statement correctly differentiates Schleiden and Schwann? A) Schleiden:all plants made of cells; Schwann:animals also made of cells. B) Schleiden:nucleus in animals; Schwann:in plants. C) Schleiden:cells from pre-existing cells. D) Both said cells arise from non-living. Show Answer Correct Answer: A) Schleiden:all plants made of cells; Schwann:animals also made of cells. 55. Movement of water by diffusion is called A) Passive transport. B) Active transport. C) Osmosis. D) Transport. Show Answer Correct Answer: C) Osmosis. 56. Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP? A) Chloroplast. B) Ribosome. C) Mitochondria. D) Lysosome. Show Answer Correct Answer: C) Mitochondria. 57. The interphase nucleus has highly extended and elaborate nucleoprotein fibres called A) Nucleolus. B) Euchromatin. C) Histones. D) Chromatin. Show Answer Correct Answer: D) Chromatin. 58. Cell theory was modified by: A) Virchow. B) Watson. C) Schleiden. D) Schwann. Show Answer Correct Answer: A) Virchow. 59. ..... is an example of eukaryotic cell A) Bacteria. B) Amoeba. C) Cyanobacteria. D) Bluegreen algae. Show Answer Correct Answer: B) Amoeba. 60. In plant cells the ..... can occupy up to 90 per cent of the volume of the cell. A) Cisternae. B) Nucleus. C) Vacuole. D) Ribosomes. Show Answer Correct Answer: C) Vacuole. Next →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 8 Cell The Unit Of Life Quiz 2Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 3Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 4Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 5Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 6Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 7Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 8Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books