This quiz works best with JavaScript enabled. Home > Class 11 > 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 (25 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) Rudolf Virchow. D) Matthias Schleiden. Show Answer Correct Answer: C) Rudolf Virchow. 2. Non-pigmented part of chloroplast is called: A) Thylakoids. B) Grana. C) Stroma. D) Lamellae. Show Answer Correct Answer: C) Stroma. 3. Which illustrates the levels of organization from SMALLEST TO LARGEST? A) Cell-tissue-organ system-organism-organ. B) Cell-tissue-organ-organ system-organism. C) Tissue-cell-organ system-organ-organism. D) Organism-organ system-organ-tissue-cell. Show Answer Correct Answer: B) Cell-tissue-organ-organ system-organism. 4. The size of the mycoplasms cell is A) 1 micrometer. B) 0.5 micrometer. C) 7.0 Micrometer. D) 0.3 micrometer. Show Answer Correct Answer: D) 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, II, III, IV. B) I, IV, III, II. C) II, IV, I, III. D) IV, III, II, I. Show Answer Correct Answer: B) 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) 80S. B) 60S+40S. C) 50S+30S. D) 50S+20S. 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, II & IV. B) III & IV. C) I, III & IV. D) II, III & IV. Show Answer Correct Answer: C) 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) Cisternae. C) Matrix. D) Lacunae. Show Answer Correct Answer: C) 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) Tubulin. D) Dynenin. Show Answer Correct Answer: C) Tubulin. 17. Dark reaction of photosynthesis occurs in: A) Thylakoid. B) Grana. C) Stroma. D) Matrix. Show Answer Correct Answer: C) 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) DNA. B) Protein coat. C) Metabolism. D) RNA. Show Answer Correct Answer: C) Metabolism. 20. Which one of the cell organelles is correctly matched with its function? A) Ribosomes-Synthesis of proteins. B) Mitochondria-secretion of enzymes. C) Plasma membrane-freely permeable. D) Centrosome-carries genes. Show Answer Correct Answer: A) Ribosomes-Synthesis of proteins. 21. In animal cells lipid-like steroidal hormones are synthesised in ..... A) SER. B) RER. C) Tonoplast. D) Nucleolus. Show Answer Correct Answer: A) 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) Liver. B) Kidney. C) Heart. D) Brain. Show Answer Correct Answer: C) Heart. 24. Which element mainly occurs in the middle lamella? A) Ca. B) Mg. C) Na. D) K. Show Answer Correct Answer: A) Ca. 25. The outer and inner nuclear membrane are separated by ..... in perinuclear space A) 10-50 nm. B) 10-50 A. C) 1-5 nm. D) 1-5 A. Show Answer Correct Answer: A) 10-50 nm. 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