This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 8 Cell The Unit Of Life – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. Bacteria are usually identified as ..... A) Prokaryotes. B) Eukaryotes. C) Viruses. D) Animals. Show Answer Correct Answer: A) Prokaryotes. 3. 70S ribosomes are found in: A) Cytosol of eukaryotes. B) Mitochondria. C) Golgi. D) ER. Show Answer Correct Answer: B) Mitochondria. 4. 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. 5. 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. 6. Which is not part of cell theory? A) All living things are made of cells. B) All cells have nuclei. C) All cells come from pre-existing cells. D) Cells are the fundamental unit of life. Show Answer Correct Answer: B) All cells have nuclei. 7. Which of the following is NOT a function of mesosome? A) DNA Replication. B) Respiration. C) Fat storage. D) Secretion. Show Answer Correct Answer: C) Fat storage. 8. 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. 9. 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. 10. Mesosomes are the infoldings of cell membrane, They-I-Help in cell wall formation, DNA replication & respiration.II-increase in surface area of plasma membrane.III-are present in both prokaryotic & eukaryotic cells.Choose the correct option- A) II & III. B) I & III. C) I & II. D) I, II & III. Show Answer Correct Answer: C) I & II. 11. Arrangement of microtubules in flagellum is: A) 9 peripheral doublets + 2 central triplets. B) 9 peripheral singlets + 2 central doublets. C) 9 peripheral doublets + 2 central singlet. D) 9 peripheral doublets + 2 central singlets. Show Answer Correct Answer: B) 9 peripheral singlets + 2 central doublets. 12. The structures that are formed by stacking of organised flattened membranous sacs in the chloroplasts are A) Stroma lamellae. B) Grana. C) Cristae. D) Stroma. Show Answer Correct Answer: B) Grana. 13. Free ribosomes synthesize: A) Secretory proteins. B) Membrane proteins. C) Cytosolic proteins. D) Lysosomal enzymes. Show Answer Correct Answer: C) Cytosolic proteins. 14. Polymorphic cell organelle is: A) Ribosome. B) Lysosome. C) Chloroplast. D) Nucleus. Show Answer Correct Answer: A) Ribosome. 15. Which of the following represents the features of lysosomes? A) A lower pH than the cytoplasm. B) Reduced hydrolase activity. C) Double membrane envelope. D) All of these. Show Answer Correct Answer: A) A lower pH than the cytoplasm. 16. Which of the following do not have cell wall in their cells: A) Bacterium. B) Plants. C) Fungi. D) Animals. Show Answer Correct Answer: D) Animals. 17. The Golgi complex participates in A) Respiration in bacteria. B) Formation of secretory vesicles. C) Fatty acid breakdown. D) Activation of amino acid. Show Answer Correct Answer: B) Formation of secretory vesicles. 18. Bacterial flagellum is composed of A) 2 parts. B) 3 parts. C) 4 parts. D) 1 part. Show Answer Correct Answer: B) 3 parts. 19. Unicellular organism are A) Not capable of independent existence because they cannot perform all the essential functions of life. B) Not capable of independent existence but they can perform all the essential vital functions. C) Are capable of independent existence and perform all the essential vital functions. D) Are capable to lead independent existence but they perform some vital functions. Show Answer Correct Answer: C) Are capable of independent existence and perform all the essential vital functions. 20. The matrix of mitochondria possesses A) Single circular DNA molecule. B) Few RNA molecules. C) 70S Ribosomes. D) All the above. Show Answer Correct Answer: D) All the above. 21. Elaioplasts store: A) Lipids. B) Carbohydrates. C) Proteins. D) Pigments. Show Answer Correct Answer: A) Lipids. 22. Which is the best way to separate intact chloroplast from green leaves of angio spermic plant? A) Petrol-ether. B) Chloroform. C) 10% sucrose solution. D) Alcohol. Show Answer Correct Answer: D) Alcohol. 23. A common characteristic feature of plant sieve tube cells and most of the mammalianerythrocytesis A) Presence of mitochondria. B) Absence of cell wall. C) Presence of haemoglobin. D) Absence of nucleus. Show Answer Correct Answer: D) Absence of nucleus. 24. Where does glycosylation of protein occur? A) Endoplasmic reticulum. B) Lysosomes. C) Mitochondria. D) Chloroplast. Show Answer Correct Answer: A) Endoplasmic reticulum. 25. The pH inside lysosome is approximately: A) 7. B) 6. C) 5. D) 8. Show Answer Correct Answer: C) 5. ← 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