Class -11-Biology-Chapter 8- cell-Unit of life InstructionTotal Questions : 20Total time :20 minTotal Marks : 20 x 3 = 60 MarksEach Correct Question carries : 3 MarksEach incorrect Question Carries : -1 MarksEach Unattempted Question carry : 0 MarksBe careful On Negative Markings 1. All students performed an experiment in which they put two different cells P and Q in pure water. Cell P swelled up and burst eventually while cell Q became tight and firm but did not burst.Which of the following is the most appropriate inference? Cell Q is a bacterium. Cell sap of cell P is isotonic to the pure water. Cell sap of cell Q is isotonic to pure water. Cell P has been obtained from a plant. None 2. Alcohol consumption adversely affects the digestion of proteins within liver cells, which can eventually lead to liver damage. Given this information, which organelle in liver cells is most directly affected? Rough ER Golgi Apparatus Nucleus Lysosome None 3. Correct the given statements by replacing the underlined words and select the correct option. (i) The viscous fluid present in the nucleus is called cytoplasm.(ii) Vacuoles are rod shaped structures which oxidize food to provide energy.(iii) Mitochondria contain green pigment chlorophyll and take part in photosynthesis.(iv) Lysosomes take part in synthesis of protein. (i) Protoplasm, (ii) Ribosomes, (iii) Centrosome, (iv) Golgi bodies (i) Nucleoplasm, (ii) Mitochondria, (iii) Chloroplasts, (iv) Ribosomes (i) Protoplasm, (ii) Plastids, (iii) Endoplasmic reticulum, (iv) Ribosomes (i) Nucleoplasm, (ii) Lysosomes, (iii) Plastids, (iv) Centrosome None 4. Which of the following is an important function attributed to lysosomes? Reabsorption in kidney and urinary bladder All of the above Scavenging of worn out cells Bone restoration None 5. Ribosomes are attached to the endoplasmic reticulum through glycoproteins known as Ribophorin I and II. Which subunit of ribosome get attached to the endoplasmic reticulum? tRNA Small subunit mRNA Large subunit None 6. Find out the incorrect statements from the following. Rough ER and smooth ER produce proteins and lipids respectively. Nucleic acids is present inside the nucleoplasm of eukaryotic nucleus Lysosome is related with the destruction of products which enters through plasma membrane. Enzymes packed in lysosomes are made through rough chloroplast. None 7. Select the one wrongly paired from the following. Mitochondrion- 'Power house' of the cell Chromatin reticulum- Genetic material DNA Lysosome- 'Suicidal bag' of the cell Ribosome- Single membrane bound organelle None 8. Out of the following organelles, which group is involved in manufacturing substances that are needed by the cell? Lysosome, vacuole, ribosome Rough ER, lysosome, vacuole Ribosome, rough ER, smooth ER Vacuole, rough ER, smooth ER None 9. The presence of DNA in mitochondria and chloroplast supports the hypothesis that ATP is produced in chloroplast as well as mitochondria. Mitochondria and chloroplast both originated as independent free-living organisms. Glycolysis occurs in both mitochondria and chloroplast. Chloroplast and mitochondria undergo meiosis and mitosis independent of nucleus. None 10. Liver cells have a particular organelle in adundance which contains enzymes that catalyse a series of reactions to detoxify both lipid soluble drugs and various harmful compounds produced by metabolism. Identify the cell organelle. Rough endoplasmic reticulum Golgi Apparatus Mitochondria Smooth endoplasmic reticulum None 11. Identify the incorrect statement from the following: Mitochondria is related with the destruction of plasma membrane. Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipid and protein respectively. All of the above. Nucleoid is present inside the nucleoplasm of eukaryotic nucleus. None 12. Starch grain in potato tuber is located in Chloroplast Mitochondria Leucoplast Ribosomes None 13. The disulphide bonds acting as polypeptide staples are formed in Golgi complex Lysosomes Cytosol Endoplasmic reticulum None 14. Organelle connected with glycosylation of proteins is Ribosome ER Mitochondrion Chloroplast None 15. What is the correct sequence of organelles for the export of material out of a cell? Rough ER → → Golgi apparatus → → Smooth ER Smooth ER → → Rough ER → → Golgi apparatus Golgi apparatus → → Rough ER → → Smooth ER Rough ER → → Smooth ER → → Golgi apparatus None 16. Which of the following differentiates the cell membranes of eukaryotes and prokaryotes? Gases and water pass through a prokaryotic cell membrane at greater rates than through those of eukaryotes. Eukaryotic cell membranes contain more proteins and larger phospholipids. Prokaryotic cell membranes are thinner and contain more proteins. Many functions that are compartmentalized within organelles of eukaryotes are associated with the cell membranes of prokaryotes. None 17. Ribosomes are essential for protein synthesis, but they are present in mitochondria and plastids, the sites of respiration and photosynthesis. What is the role of ribosomes in these cell organelles? Sub units of some required proteins are synthesized in these organelles Ribosomes transport ATP formed in respiration and photosynthesis to cytoplasm through endoplasmic reticulum Ribosomes transport RNA and DNA to cytoplasm All the above are correct None 18. Which of the following statement regarding mitochondrial membrane is not correct The inner membrane is highly convoluted forming a series of infoldings. The outer membrane resembles a sieve. The enzymes of the electron transfer chain are embedded in the outer membrane. The outer membrane is permeable to all kinds of molecules. None 19. What will happen if the organization of a cell is destroyed due to some physical or chemical influence? Lysis of the whole cell will occur due to the enzymes released by lysosomes. Lysis of the whole cell will occur due to the hormones released by lysosomes. Plasmolysis of the whole cell will occur due to the enzymes released by lysosomes. Plasmolysis of the whole cell will occur due to the hormones released by lysosomes. None 20. If the analogy of a city is applied to a eukaryotic cell, then which of the following statements is correct? Nucleus as a library and ribosome as a slaughter house Nucleus as a police station and mitochondria as powerhouse Mitochondria as powerhouse and nucleus as slaughter house Mitochondria as powerhouse and Golgi as a cargo sorting facility None Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.