This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 8 Cell The Unit Of Life – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 23 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Assertion-Mitochondria and chloroplast are semi autonomous organellesReason-they are formed by the division of pre existing organelles they contain DNA but lack protein synthesizing machinery A) Both A & R are true & R is the correct explanation of A. B) Both A & R true but R is not te correct explanation of A. C) A is true but R is false. D) Both A & R is false. Show Answer Correct Answer: C) A is true but R is false. 2. Resistance to antibiotics is conferred by A) Plasmid DNA. B) Chromosome. C) Both a and b. D) Mitochondria. Show Answer Correct Answer: A) Plasmid DNA. 3. In which type of muscles, mitochondria are expected to be found in largest numbers? A) Eye muscles. B) Thigh muscles. C) Cardiac muscles. D) Thoracic muscles of birds. Show Answer Correct Answer: D) Thoracic muscles of birds. 4. Self duplication does not occur in: A) Mitochondria. B) Chloroplasts. C) Both (a) & (b). D) Ribosomes. Show Answer Correct Answer: C) Both (a) & (b). 5. Which of the following is an example of comma shaped bacteria? A) Lactobacillus. B) Streptococcus pneumoniae. C) Treponema Pallidum. D) Vibrio chlolerae. Show Answer Correct Answer: D) Vibrio chlolerae. 6. The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as A) Lamins. B) Intermediate filaments. C) Microfilaments. D) Microtubules. Show Answer Correct Answer: C) Microfilaments. 7. The principal function of Golgi apparatus is A) Synthesis of lipids and proteins. B) Detoxification of drugs. C) Modification of nucleic acids. D) Packaging of materials to be delivered inside the cell or outside the cell. Show Answer Correct Answer: D) Packaging of materials to be delivered inside the cell or outside the cell. 8. Which of the following cannot be attributed as a role of cytoskeleton? A) Formation of pseudopodia. B) Formation of spindle fibers. C) Maintenance of cell structure. D) Inhibits cylosis. Show Answer Correct Answer: D) Inhibits cylosis. 9. The main difference between pinocytosis and phagocytosis is ..... A) Taking in of fluid substances and engulfing of food material and foreign bodies. B) Taking in of small and large particles respectively. C) Taking in of small amount of liquid and large volume of liquids. D) None of the above. Show Answer Correct Answer: A) Taking in of fluid substances and engulfing of food material and foreign bodies. 10. The organelle involved with the synthesis of respiratory enzymes is ..... A) Ribosomes. B) Lysosomes. C) Mitochondria. D) Golgi complex. Show Answer Correct Answer: C) Mitochondria. 11. Select the correct combination of statemnets with respect to structure of middlelamallae-I) It holds the neighbouring cells togetherII) Composed of lipids III) it gets dissolved during ripening A) I & III. B) I, II & III. C) I & II. D) II & III. Show Answer Correct Answer: A) I & III. 12. Lysosomes are rich in almost all types of hydrolytic enzymes optimally active at the A) Neutral pH. B) Basic pH. C) Alkaline pH. D) Acidic pH. Show Answer Correct Answer: D) Acidic pH. 13. Which of the following organelles is responsible for the synthesis of proteins in a cell? A) Lysosomes. B) Ribosomes. C) Mitochondria. D) Chloroplasts. Show Answer Correct Answer: B) Ribosomes. 14. Which of the following is true for Gram +ve bacteria? A) Peptidoglycan layer is thin. B) Peptidoglycan layer is thick. C) No Peptidoglycan layer. D) Peptidoglycan layer is washed off. Show Answer Correct Answer: B) Peptidoglycan layer is thick. 15. A cell organelle containing hydrolytic enzymes is A) Lysosome. B) Microsome. C) Mesosome. D) Ribosome. Show Answer Correct Answer: A) Lysosome. 16. The site of active ribosomal RNA synthesis is A) Nucleolus. B) Mitochondria. C) Cytoplasm. D) All of these. Show Answer Correct Answer: A) Nucleolus. 17. Plant cells differ from animal cells in having A) Cell wall. B) Plastids. C) A large central vacuole. D) All of these. Show Answer Correct Answer: D) All of these. 18. Plasma membrane is selectively permeable due to: A) Proteins. B) Lipid bilayer. C) Carbohydrates. D) Cell wall. Show Answer Correct Answer: B) Lipid bilayer. 19. Part of chromosome after secondary constriction is called: A) Telomere. B) Centromere. C) Nucleolar organiser. D) Satellite. Show Answer Correct Answer: D) Satellite. 20. Packages macromolecules in vesicles for transport outside the cell A) Golgi Apparatus. B) Cell Wall. C) Mitochondria. D) Chloroplast. Show Answer Correct Answer: A) Golgi Apparatus. 21. Peptide synthesis inside a cell takes place in A) Mitochondria. B) Chloroplast. C) Ribosomes. D) Chloroplast. Show Answer Correct Answer: C) Ribosomes. 22. Array is observed in A) Centrioles. B) Cilia. C) Nucleus. D) None of the above. Show Answer Correct Answer: A) Centrioles. 23. Which of the following feautures is common to prokaryotes and many eukaryotes? A) Chromatin material present. B) Cell wall present. C) Nuclear membrane present. D) Membrane boynd subcellular organelles present. Show Answer Correct Answer: B) Cell wall present. 24. Cell wall is absent in A) Funaria. B) Mycoplasma. C) Nostoc. D) Aspergillus. Show Answer Correct Answer: B) Mycoplasma. 25. Which of the following structures is most likely to be found in both a spinach cell and a muscle cell? A) Nucleus. B) Chloroplast. C) Large, water-filled vacuole. D) Cell wall. Show Answer Correct Answer: A) Nucleus. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 8 Cell The Unit Of Life Quiz 1Class 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 9Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books