This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 8 Cell The Unit Of Life – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Eukaryotic cells possess a cytoskeleton of ..... A) Microtubules, microfilaments and cytoplasm. B) Microtubules, microfilaments and protoplasm. C) Microtubules, microfilaments and proteins. D) None of the above. Show Answer Correct Answer: A) Microtubules, microfilaments and cytoplasm. 2. Read the given statements and select the correct option.Statement 1:Peroxisomes are involved in photorespiration of the plant cells and help in the lipid metabolism of animal cells.Statement 2:Peroxisomes are the cell's garbage disposal system. A) Both statements 1 and 2 are correct. B) Statement 1 is correct but statement 2 is incorrect. C) Statement 1 is incorrect but statement 2 is correct. D) Both statements 1 and 2 are incorrect. Show Answer Correct Answer: B) Statement 1 is correct but statement 2 is incorrect. 3. During metaphase II stage of meiosis II, which of the following structures of chromosome is attached to spindle fibers? A) Kinetochore. B) Satellite. C) Centromere. D) Secondary constriction. Show Answer Correct Answer: A) Kinetochore. 4. Which one of the following cellular parts is correctly described A) Centrioles-Sites for active RNA synthesis. B) Ribosomes-Those on chloroplasts are larger (80S) whilethose in the cytoplasm are smaller (70S). C) Lysosomes-Optimally active at a pH of about 8.5. D) Thylakoids-Flattened membranous sacs forming the granaof chloroplasts. Show Answer Correct Answer: D) Thylakoids-Flattened membranous sacs forming the granaof chloroplasts. 5. In prokaryotic cell the nucleus is A) Primitive type. B) Complex. C) Doubled membrane. D) None. Show Answer Correct Answer: A) Primitive type. 6. If you fractionate all the organelles from the cytoplasm of a plant cell, in which one the following sets of fractions will you find nucleic acids? A) Nucleus, Mitochondria, Chloroplast, Cytoplasm. B) Nucleus, Chloroplast, Mitochondria, Glyoxysome. C) Nucleus, Chloroplast, Cytoplasm, Peroxisome. D) Nucleus, Mitochondria, Chloroplast, Golgi bodies. Show Answer Correct Answer: A) Nucleus, Mitochondria, Chloroplast, Cytoplasm. 7. "Palade particles" are: A) Lysosomes. B) Sphaerosomes. C) Ribosomes. D) Golgi vesicles. Show Answer Correct Answer: C) Ribosomes. 8. The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monograph are known as A) Microfilaments. B) Lamins. C) Intermediate filaments. D) Microtubules. Show Answer Correct Answer: A) Microfilaments. 9. Read the given statements. P:It can occupy upto 90% volume of a plant cell. Q:It contains water, sap as well as excretory products. Identify the cell organelle on the basis of above features. A) Peroxisome. B) Lysosome. C) Ribosomes. D) Vacuole. Show Answer Correct Answer: D) Vacuole. 10. Match List I and List II and select the correct answer using the code given below the lists List I List II 1. Microtubules Structural components of cilia 2. Centrioles Store hydrolytic enzymes 3. Peroxisomes Store oil protein and starch in plants A) 1, 2 and 3 are correct. B) 1 and 2 are correct, 3 is false. C) 1 is correct, 2 and 3 are false. D) 1 and 3 are correct, 2 is false. Show Answer Correct Answer: C) 1 is correct, 2 and 3 are false. 11. Nucleolus in eukaryotic cell is: A) The site of synthesis of r-RNA with proteins. B) Non-living. C) Bounded by a membrane. D) Visible at metaphase. Show Answer Correct Answer: A) The site of synthesis of r-RNA with proteins. 12. CYTOPLASM HAS/IS ..... A) BLUE COLOUR. B) WHITE COLOUE. C) RED COLOUR. D) COLOURLESS. Show Answer Correct Answer: D) COLOURLESS. 13. Which of the following do not possess lipoproteinaceous membrane? A) Lysosomes. B) GC. C) ER. D) Ribosomes. Show Answer Correct Answer: D) Ribosomes. 14. ..... organelle(s) can be used to differentiate between cells of Pinus and Periplaneta americana. A) Plastids. B) Centrosome. C) Centriole. D) All the above. Show Answer Correct Answer: D) All the above. 15. Select the option which is not correct with respect to enzyme action: A) Addition of lot of succinate does not reverse the inhibition of succinic dehydrogenase by malonate. B) Substrate binds with enzyme at its active site. C) A non-competitive inhibitor binds the enzyme at a site distinct from that which binds the substrate. D) Malonate is a competitive inhibitor of succinic dehydrogenase. Show Answer Correct Answer: A) Addition of lot of succinate does not reverse the inhibition of succinic dehydrogenase by malonate. 16. The endoskeleton of cell is made up of ..... A) Cell wall. B) Endoplasmic reticulum. C) Cytoplasm. D) Mitochondria. Show Answer Correct Answer: B) Endoplasmic reticulum. 17. Surface of Golgi cisternae towards nucleus is called ..... face and towards plasma membrane is ..... face. A) Maturing, forming. B) Forming, maturing. C) Cis, trans. D) Trans, cis. Show Answer Correct Answer: C) Cis, trans. 18. The strength and rigidity of a cell wall is due to the substance known as A) Suberin. B) Lignin. C) Cellulose. D) Pectin. Show Answer Correct Answer: B) Lignin. 19. Which of the following is incorrect matching? A) Round and biconcave-RBC. B) Amoeboid-WBC. C) Elongated-Tracheid. D) Long and narrow-Nerve cells. Show Answer Correct Answer: D) Long and narrow-Nerve cells. 20. Which of the following is a part of endomembrane system of eukaryotic cell? A) Mitochondria. B) Chloroplasts. C) Peroxisomes. D) Golgi complexes. Show Answer Correct Answer: D) Golgi complexes. 21. Cellular organelles with single & double membranes respectively are- A) Endoplasmic reticulum, Ribosomes &Chloroplast. B) Chromosome, ribosome & endoplasmicreticulum. C) Nucleus, Ribosomes & Mitochondria. D) Lysosomes, Golgi & mitochondria. Show Answer Correct Answer: D) Lysosomes, Golgi & mitochondria. 22. Find out the incorrect statement A) Peripheral fibril of centriole is doublet. B) Centriole gives rise to spindle fibres at the time of cell division in animal cell. C) Centrioles forms basal bodies of cilia or flagella. D) Centriole gives rise to spindle fibres at the time of cell division in animal cell. Show Answer Correct Answer: B) Centriole gives rise to spindle fibres at the time of cell division in animal cell. 23. Who stated 'Omnis cellula e cellula'? A) Anton Von Leeuwenhoek. B) Robert brown. C) Rudolf virchow. D) None of the above. Show Answer Correct Answer: C) Rudolf virchow. 24. Cell envelope consist of A) Plasma membrane+cell wall+glycocaylx. B) Plasma membrane+cell wall. C) Cell wall+glycocalyx. D) Only glycocalyx. Show Answer Correct Answer: A) Plasma membrane+cell wall+glycocaylx. 25. Select the wrong statement with respect to the structure of a plant cell. A) Cellulosic cell wall is present inside the cell membrane. B) Centrioles are usually absent. C) A large central vacuole is present. D) Golgi apparatus is formed of a number of unconnected units called dictyosomes. Show Answer Correct Answer: A) Cellulosic cell wall is present inside the cell membrane. 26. Keeping in view the 'fluid mosaic model' of cell membrane, which of the following is correct regarding flip-flop movement? A) While proteins can flip-flop, lipids cannot. B) Neither lipids nor proteins can flip-flop. C) Both lipids and proteins can flip-flop. D) While lipids can rarely flip-flop, proteins cannot. Show Answer Correct Answer: D) While lipids can rarely flip-flop, proteins cannot. 27. Mitochondria divide by fission A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 28. According to most recent studies, each chromosome consists of A) Single double helical DNA which is highly coiled and folded. B) Variable number of DNA helices, depending upon the length of chromosome. C) Many small DNA helices, which are joined by peptide linkages. D) Small DNA helices, wrapped around each other like a rope. Show Answer Correct Answer: A) Single double helical DNA which is highly coiled and folded. 29. In human beings, the membrane of the erythrocyte has approximately ..... protein and ..... lipids. A) 55%, 47%. B) 40%, 50%. C) 52%, 40%. D) 70%, 30%. Show Answer Correct Answer: B) 40%, 50%. 30. Golgi body is associated with A) Packaging and storage of material. B) Cell plate formation. C) Secretion of different substances. D) All of the above. Show Answer Correct Answer: D) All of the above. 31. Who proposed the hypothesis that the bodies of animals and plants are composed of cells andproduct of cells? A) Schleiden. B) Schwann. C) Both a and b. D) None of these. Show Answer Correct Answer: B) Schwann. 32. Select the correct statement from the following regarding cell membrane. A) NA+ and K+ ions move across cell membrane by passive transport. B) Proteins make up 60 to 70 per cent of the cell membrane. C) Lipids are arranged in a bilayer with polar heads towards the inner part. D) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson. Show Answer Correct Answer: D) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson. 33. In majority of higher animals and plants, growth and reproduction are ..... events. A) Mutually exclusive. B) Mutually inclusive. C) Either a or b. D) None. Show Answer Correct Answer: A) Mutually exclusive. 34. Integral cell membrane proteins. A) Are partially embedded in lipid layers. B) Are completely embedded in lipid layers. C) Show lateral but not vertical movements within bilayer of lipid. D) All of these. Show Answer Correct Answer: D) All of these. 35. Polymers of nucleotides in prokaryotes can be found in A) Periplasmic space. B) Plasma membrane. C) Gas vacuole. D) Cytoplasm. Show Answer Correct Answer: D) Cytoplasm. 36. Endoplasmic reticulum is more developed in ..... A) Mature cells. B) Green cells. C) Young cells. D) Bacteriophage. Show Answer Correct Answer: C) Young cells. 37. Which of the following statements is not true with respect to semi-autonomous organelle observed in plants and animals both A) It has gel like material inside the inner membrane known as stroma. B) It has stacked structure of thylakoids known as Grana. C) It has appressed and non-appresed regions in grana. D) All of the above. Show Answer Correct Answer: D) All of the above. 38. Rough and smooth ER differ in: A) Presence or absence of ribosomes. B) Site of detoxification. C) Type of lipids present. D) Type of DNA. Show Answer Correct Answer: A) Presence or absence of ribosomes. 39. Match column I with Column II and select the correct option from the codes given below. Column I Column IIA Nucleolus (i) Lipid storageB Sphaerosomes (ii) Glycolate metabolismC Peroxisomes (iii) Transport of macromoleculesD Plasmodesmata (iv) RNA synthesis A) A-(i) B-(ii) C-(iv) D-(iii). B) A-(iv) B-(i) C-(ii) D-(iii). C) A-(iv) B-(i) C-(iii) D-(ii). D) A-(i) B-(ii) C-(iii) D-(iv). Show Answer Correct Answer: B) A-(iv) B-(i) C-(ii) D-(iii). 40. Who is the first person to identify cells using microscope? A) Khoo Kay Kim. B) Robert Hooke. C) Hooke. D) Theodor. Show Answer Correct Answer: B) Robert Hooke. 41. Nuclear envelope is a derivative of A) Membrane of Golgi complex. B) RER. C) Microtubules. D) SER. Show Answer Correct Answer: B) RER. 42. Centrioles are found in: A) Chromosomes. B) Nucleus. C) Centromere. D) Centrosome. Show Answer Correct Answer: D) Centrosome. 43. Who proposed the "cell lineage theory" by stating "Omnis cellula e cellula" ? A) Anton Von Leeuwenhoek. B) Rudolf Virchow. C) Karl Nageli. D) Schwann. Show Answer Correct Answer: B) Rudolf Virchow. 44. As they release hydrolase that digest old and damaged cells, the term suicide is aptly used by cell biologists for A) Peroxisomes. B) Lysosomes. C) Glyoxysomes. D) Golgi-bodies. Show Answer Correct Answer: B) Lysosomes. 45. Cell which has naked double-stranded circular DNA is A) S and 80S ribosomes present. B) Histone proteins present. C) Compartmentalisation of cytoplasm absent. D) None of the above. Show Answer Correct Answer: C) Compartmentalisation of cytoplasm absent. 46. A ..... cell contains several membrane-bound organelles, and is capable of producing multicellular life. A) Eukaryotic. B) Prokaryotic. C) Humanotic cell. D) Cell membrane. Show Answer Correct Answer: A) Eukaryotic. 47. A organelle which does respiration in prokaryotes A) Plasma membrane. B) Inclusion bodies. C) Chromatophore. D) Mesosome. Show Answer Correct Answer: D) Mesosome. 48. What is the meaning of unicellular? A) A organism without cell. B) A organsim which is big. C) Organism with more than one cell. D) A organism with only one cell. Show Answer Correct Answer: D) A organism with only one cell. 49. 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. 50. 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. 51. In which type of muscles, mitochondria are expected to be found in largest numbers? A) Thigh muscles. B) Cardiac muscles. C) Thoracic muscles of birds. D) Eye muscles. Show Answer Correct Answer: C) Thoracic muscles of birds. 52. Self duplication does not occur in: A) Mitochondria. B) Chloroplasts. C) Both (a) & (b). D) Ribosomes. Show Answer Correct Answer: C) Both (a) & (b). 53. 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. 54. The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as A) Microtubules. B) Intermediate filaments. C) Microfilaments. D) Lamins. Show Answer Correct Answer: C) Microfilaments. 55. 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. 56. Which of the following cannot be attributed as a role of cytoskeleton? A) Inhibits cylosis. B) Maintenance of cell structure. C) Formation of spindle fibers. D) Formation of pseudopodia. Show Answer Correct Answer: A) Inhibits cylosis. 57. 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. 58. The organelle involved with the synthesis of respiratory enzymes is ..... A) Ribosomes. B) Mitochondria. C) Golgi complex. D) Lysosomes. Show Answer Correct Answer: B) Mitochondria. 59. 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 & II. B) I, II & III. C) I & III. D) II & III. Show Answer Correct Answer: C) I & III. 60. Lysosomes are rich in almost all types of hydrolytic enzymes optimally active at the A) Alkaline pH. B) Acidic pH. C) Neutral pH. D) Basic pH. Show Answer Correct Answer: B) Acidic pH. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books