This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 8 Cell The Unit Of Life – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is a tonoplast? A) Outer membrane of mitochondria. B) Inner membrane of chloroplast. C) Membrane boundary of the vacuoles of the plant cells. D) Cell membrane of a plant cell. Show Answer Correct Answer: C) Membrane boundary of the vacuoles of the plant cells. 2. Centrosome is concerned with A) Photosynthesis. B) Motility. C) Formation of spindle fibres during cell division. D) None of the above. Show Answer Correct Answer: C) Formation of spindle fibres during cell division. 3. Assertion:Bacterial cells may be motile or non motileReason:Bacterial cells may or may not posses cilia 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: C) If the assertion is true but the reason is false. 4. ..... is the important site of formation of glycoproteins and glycolipids. A) Golgi apparatus. B) Nucleolus. C) Nucleus. D) Lumen of ER. Show Answer Correct Answer: A) Golgi apparatus. 5. Which of the following statements regarding mitochondria is incorrect? A) Outer membrane is permeable to monomers of carbohydrates, fats and proteins. B) Enzymes of electron transport are embedded in outer membrane. C) Inner membrane is convoluted with infoldings. D) Mitochondrial matrix contains single circular DNA molecule and ribosomes. Show Answer Correct Answer: B) Enzymes of electron transport are embedded in outer membrane. 6. Cell theory was formulated by A) Schleiden and Schwann. B) Robert Hooke. C) Leeuwenhoek. D) Marcello Malpighi. Show Answer Correct Answer: A) Schleiden and Schwann. 7. What is the correct about the fluid-mosaic model? A) Above the protein layer, one layer of phospholipids is present. B) Lipid bilayer and proteins are included in it. C) Above the protein layer, two layers of phospholipids are present. D) A lipid bilayer and protein included in it. Show Answer Correct Answer: B) Lipid bilayer and proteins are included in it. 8. An elaborate network of filamentous proteinaceous structures present in the cytoplasm, which helps in the maintenance of cell shape, is called: A) Cytoskeleton. B) Endoplasmic reticulum. C) Thylakoid. D) Plasmalemma. Show Answer Correct Answer: A) Cytoskeleton. 9. Nuclear pore is involved in: A) Respiration. B) Transport of RNA and proteins. C) DNA synthesis. D) Cell division. Show Answer Correct Answer: B) Transport of RNA and proteins. 10. The site of light reaction of photosynthesis in the chloroplast is A) Stroma lamellae. B) Stroma. C) Lumen of thylakoid. D) Membrane of thylakoid. Show Answer Correct Answer: D) Membrane of thylakoid. 11. Omnis cellula-e-cellula, this statement was given by A) Virchow. B) Schwann. C) Rober Brown. D) Schleiden. Show Answer Correct Answer: A) Virchow. 12. The largest cell organelle is the ..... A) Endoplasmic reticulum. B) Lysosomes. C) Chloroplasts. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 13. The largest isolated single cell is that of A) An egg of ostrich. B) An amoeba. C) Cyano bacteria. D) Human nerve cell. Show Answer Correct Answer: A) An egg of ostrich. 14. ..... proteins are partially or totally buried in the plasma membrane. A) Side chain. B) Integral. C) Glycoproteins. D) Peripheral. Show Answer Correct Answer: B) Integral. 15. Chloroplast located in the y to carry out photosynthesis. What is y? A) Guard cell. B) Palisade cell. C) Root hair cell. D) Epidermal cell. Show Answer Correct Answer: B) Palisade cell. 16. The type of ribosomes found in prokaryotes is A) 80 S type. B) 50 S type. C) 30 S type. D) 70 S type. Show Answer Correct Answer: D) 70 S type. 17. F 1 subunits of oxysomes is called A) Stalk. B) Head. C) Filament. D) Base. Show Answer Correct Answer: B) Head. 18. Consider the following statements & choose the correct option-I-the cisternae in Golgi complex have Cis & Trans face.II-Cis face is also known as convex & maturing phaseIII-trans face is also known as concave & forming face A) I, II & III all correct. B) I & II are correct. C) I & III are correctDonly. D) Only I is correct. Show Answer Correct Answer: D) Only I is correct. 19. Which of the following pair of organelles does not contain DNA? A) Mitochondria and Lysosomes. B) Chloroplast and Vacuoles. C) Lysosomes and Vacuoles. D) Nuclear envelope and Mitochondria. Show Answer Correct Answer: C) Lysosomes and Vacuoles. 20. Ripe tomatoes are red due to the presence of ..... A) Xanthophyll. B) Red blood cells. C) Chlorophyll. D) Carotene. Show Answer Correct Answer: D) Carotene. 21. Cis face of Golgi apparatus is also called: A) Sorting face. B) Forming face. C) Secreting face. D) Maturing face. Show Answer Correct Answer: B) Forming face. 22. Location of ribosome, except cytoplam A) Vacoule. B) Lysosome,. C) Rough endoplasmic reticulum. D) Smooth endoplasmic reticulum. Show Answer Correct Answer: C) Rough endoplasmic reticulum. 23. Extra nuclear material in prokaryotes A) Nucleoid. B) Plasmid. C) DNA. D) None of the above. Show Answer Correct Answer: B) Plasmid. 24. Assertion:The endoplasmic reticulum which lacks ribosomes is called smooth endoplasmic reticulum (SER). Reason:SER is mainly involved in protein synthesis A) B. B) C. C) D. D) A. Show Answer Correct Answer: B) C. 25. Read the given statements regarding a cell organelle.i) It contains water, sap, excretory products and other unwanted materials ii) It is bounded by a single membrane called tonoplast iii) In plant cells, it can occupy upto 90% of cellular volumeiv) It contents form cell sap.v) It maintains turgor pressureThe above features are attributed to A) Peroxisome. B) Lysosome. C) Mitochondrion. D) Vacuole. Show Answer Correct Answer: D) Vacuole. 26. Many molecules can move briefly across the membrane without any requirement of energy and special membrane proteins. This is called ..... A) Active transport. B) Passive transport. C) Facilitated diffusion. D) All of these. Show Answer Correct Answer: B) Passive transport. 27. The cell wall of both bacteria and cyanobacteria contains A) Muramic acid. B) Protein. C) Pectin. D) Lipids. Show Answer Correct Answer: A) Muramic acid. 28. Membrane bound nucleus is absent in: A) Prokaryotes. B) Plants. C) Anomals. D) All the above. Show Answer Correct Answer: A) Prokaryotes. 29. Dikaryophase in ascomycetes is related to A) Nucleus. B) Matrix of mitochondria. C) Cytoplasm. D) Nucleoplasm. Show Answer Correct Answer: A) Nucleus. 30. Protein factories of the cell A) Chloroplasts. B) Ribosomes. C) Mitochondria. D) Lysosomes. Show Answer Correct Answer: B) Ribosomes. 31. Select the not true statement from the following- A) Both chloroplast & mitochondria have inner & iuter membrane. B) Both chlorplast & mitochondria are semi autonomous organelles. C) Both chloroplast & mitochondria contain single stranded circular DNA. D) Chloroplasts are generally larger than mitochondria. Show Answer Correct Answer: C) Both chloroplast & mitochondria contain single stranded circular DNA. 32. The cap like structure Parenthesome found in the dolipore septum of Basidiomycetes is the modified A) Sphaerosome. B) ER. C) Vesicle. D) Tonoplast. Show Answer Correct Answer: B) ER. 33. The function of nucleolus is the synthesis of A) R-RNA. B) DNA. C) M-RNA. D) T-RNA. Show Answer Correct Answer: A) R-RNA. 34. Organelle present in prokaryotic cell A) Ribosomes. B) Mitochondria. C) Golgi body. D) Endoplasmic reticulum. Show Answer Correct Answer: A) Ribosomes. 35. How many longitudinal peripheral fibres are found in a centriole? A) 9. B) 7. C) 2. D) 5. Show Answer Correct Answer: A) 9. 36. ASSERTION-All non-living things composed of cells.REASON-Cell is the basic unit of non-living things.a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.c) Assertion is true but Reason is false.d) Both Assertion and Reason are false. A) D. B) A. C) C. D) B. Show Answer Correct Answer: A) D. 37. Which of these donot have a membrane? A) Ribosomes. B) Nucleus. C) Cilia. D) None of the above. Show Answer Correct Answer: A) Ribosomes. 38. Go through the following statements and then select correct option(s) for prokaryotic cells-I. They are generally smaller than eukaryotic cellsII. They multiply more rapidly than the eukaryotic cellsIII. They are presented by bacteria, B. G. A, mycoplasma and PPLO (Pleuro Pneumonia like organism) A) All. B) II and III. C) Only III. D) I and III. Show Answer Correct Answer: A) All. 39. Why is studying cells and their structures important? A) To improve cooking skills. B) To understand the weather patterns. C) To gain insights into complex processes within living organisms. D) To learn a new language. Show Answer Correct Answer: C) To gain insights into complex processes within living organisms. 40. The prokaryotic ribosomes, A) Can be affected by action of RNases. B) Are found as free floating in cytoplasm. C) Are composed of 50S and 30S. D) All of the above. Show Answer Correct Answer: D) All of the above. 41. Select the incorrect statement about prokaryotic ribosomes- A) 50 S & 30 S subunit unie to form 70 S ribosome. B) They are about 15x20 nm in size. C) Polyribosomes consists of may m rna attcahed to one single ribosomes. D) Ribosoem is the site fro protein synthesis. Show Answer Correct Answer: C) Polyribosomes consists of may m rna attcahed to one single ribosomes. 42. Bright colour of petals is due to the presence of A) Elaioplast. B) Chloroplast. C) Amyloplast. D) Anthocyanin. Show Answer Correct Answer: D) Anthocyanin. 43. Cell membrane is selective permeable. This means that it A) Allows all materials to pass through. B) Allows only water to pass through. C) Allows only certain materials to pass through. D) Allows only ions to pass through. Show Answer Correct Answer: C) Allows only certain materials to pass through. 44. The nucleolus has the function of ..... A) Cellular respiration. B) Intracellular digestion. C) Cell division. D) Forming RNA. Show Answer Correct Answer: D) Forming RNA. 45. Which cellular part is correctly described? A) Lysosomes active at pH 8.5. B) Ribosomes on chloroplasts 80S, in cytoplasm 70S. C) Thylakoids-flattened sacs forming grana. D) Centrioles-site of active RNA synthesis. Show Answer Correct Answer: C) Thylakoids-flattened sacs forming grana. 46. Plasma membrane is mainly composed of: A) Proteins only. B) Lipids only. C) Lipids and proteins. D) Carbohydrates only. Show Answer Correct Answer: C) Lipids and proteins. 47. All plastids have similar structure because they can A) Store starch, lipids and proteins. B) Get transformed from one type to another. C) Perform same function. D) Be present together. Show Answer Correct Answer: B) Get transformed from one type to another. 48. The shape of the white blood cells is said to be ..... in order to squeeze through the capillary walls. A) Biconcave. B) Cubical. C) Contractile. D) Amoeboid. Show Answer Correct Answer: D) Amoeboid. 49. The site of respiration in bacteria is A) Mesosome. B) Microsome. C) Episome. D) Ribosome. Show Answer Correct Answer: A) Mesosome. 50. Pit membrane of simple pit is formed by A) Secondary cell wall. B) Middle lamella. C) Primary cell wall. D) Plasma membrane. Show Answer Correct Answer: B) Middle lamella. 51. Facilitated diffusion occurs through: A) Pumps. B) Vesicles. C) ATP. D) Carrier proteins. Show Answer Correct Answer: D) Carrier proteins. 52. A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is A) Absence of mitochondria. B) Presence of cell wall. C) Presence of haemoglobin. D) Absence of nucleus. Show Answer Correct Answer: D) Absence of nucleus. 53. Statement I-Centrioles are made up of microfilaments.Statement II-Each microtubule is made of 13 parallel protofilaments. Each protofilament is made up of alpha and beta subunits of tubulin proteins. A) Statement I is correct while Statement II is false. B) Statement I is false while Statement II is correct. C) Both statements are correct. D) Both statements are false. Show Answer Correct Answer: B) Statement I is false while Statement II is correct. 54. Bacteria are usually identified as ..... A) Animals. B) Prokaryotes. C) Eukaryotes. D) Viruses. Show Answer Correct Answer: B) Prokaryotes. 55. 70S ribosomes are found in: A) Mitochondria. B) Cytosol of eukaryotes. C) Golgi. D) ER. Show Answer Correct Answer: A) Mitochondria. 56. Which organism among these do not have cell wall A) Plants. B) Animals. C) Bacteria. D) Fungus. E) None. Show Answer Correct Answer: B) Animals. 57. How does a cell rid itself of defective or malfunctioning organelles? A) They are engulfed by plastids and stored until export from cell is possible. B) Defective parts accumulate until the cell itself dies. C) They are exported by exocytosis. D) Lysosomes assist in the removal of defective organelles by digesting them. Show Answer Correct Answer: D) Lysosomes assist in the removal of defective organelles by digesting them. 58. Which of the following is NOT a function of mesosome? A) Secretion. B) Fat storage. C) Respiration. D) DNA Replication. Show Answer Correct Answer: B) Fat storage. 59. Which one of these is not correct regarding peroxisomes? A) Single membrane bound organelles. B) Perform photorespiration in C$_{3}$ plants. C) Take part in synthesis and storage of lipids. D) Protect a cell from the toxic effects of H$_{2}$O$_{2}$. Show Answer Correct Answer: C) Take part in synthesis and storage of lipids. 60. Centrioles differ from cilia or flagellaP. In number of microtubules present at periphery.Q. In number of radial spokes.R. In arrangement of microtubules.S. In containing proteinaceous central hub.T. In being surrounded by double membrane. A) Only P and Q. B) Q, R and S. C) Only P and R. D) P, R and S. Show Answer Correct Answer: C) Only P and R. ← 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 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