This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 8 Cell The Unit Of Life – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Centrioles help in formation of: A) Ribosomes. B) Cilia and flagella. C) Vacuoles. D) Lysosomes. Show Answer Correct Answer: B) Cilia and flagella. 2. Which of the following is a differentiating structure between E. coli and H. sapiens? A) Contractile vacuole. B) Gas vacuole. C) Nuclear pore. D) 70S Ribosomes. Show Answer Correct Answer: C) Nuclear pore. 3. A student is developing a model to show how proteins are synthesized. Which organelles should be included in the model? A) Ribosomes and rough ER. B) Nucleus and smooth ER. C) Nucleus and lysosomes. D) Cell membrane and nucleus. Show Answer Correct Answer: A) Ribosomes and rough ER. 4. Genetic material of a Eukaryotic cell is contained in A) Nucleolus. B) Nucleoplasm. C) Nucleoid. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 5. Which of the following is an example of Gram Negative Bacteria? A) Lactobacilli. B) E.Coli. C) Streptococcus. D) Staphylococcus. Show Answer Correct Answer: B) E.Coli. 6. Mitochondria is an organelle of which process? A) Kreb's cycle. B) Glycolysis. C) Hill reaction. D) Calvin cycle. Show Answer Correct Answer: A) Kreb's cycle. 7. Select one which is not true about ribosomes? A) Made of two subunits. B) Form polysomes. C) May attached to mRNA. D) Have no role in protein synthesis. Show Answer Correct Answer: D) Have no role in protein synthesis. 8. The plasma membrane consists mainly of A) Phospholipids embedded in a protein bilayer. B) Proteins embedded in a phospholipid bilayer. C) Proteins embedded in a polymer of glucose molecules. D) Proteins embedded in a carbohydrate bilayer. Show Answer Correct Answer: B) Proteins embedded in a phospholipid bilayer. 9. Which statement regarding mitochondria is incorrect? A) Outer membrane is permeable to monomers of carbohydrates, fats, proteins. B) Mitochondrial matrix contains single circular DNA molecule and ribosomes. C) Inner membrane is convoluted with infoldings. D) Enzymes of electron transport are embedded in outer membrane. Show Answer Correct Answer: D) Enzymes of electron transport are embedded in outer membrane. 10. ..... are 'factories' for the syntesis of proteins. A) Lysosomes. B) Plastids. C) Ribosome. D) Cytoplasm. Show Answer Correct Answer: C) Ribosome. 11. Which of the following is a main source of cellular membranes? A) Endoplasmic reticulum. B) Golgi body. C) Mitochondria. D) Nucleus. Show Answer Correct Answer: A) Endoplasmic reticulum. 12. If mitochondria is absent in mature RBC what will be the source of energy: A) TCA. B) ETS. C) Link reaction. D) Glycolysis. Show Answer Correct Answer: D) Glycolysis. 13. Chemical modification of substances like glycosylation of proteins and lipid occurs in: A) Endoplasmic reticulum. B) Golgi body. C) Lysosome. D) Ribosome. Show Answer Correct Answer: B) Golgi body. 14. Which of the following statements regarding the mitochondrial membrane is not correct? A) The outer membrane resembles a sieve. B) The outer membrane is comparatively more permeable to different kinds of molecules. C) The enzymes of the electron transfer chain are embedded in the outer membrane. D) The inner membrane is highly convoluted forming a series of infoldings. Show Answer Correct Answer: C) The enzymes of the electron transfer chain are embedded in the outer membrane. 15. Starch, glycogen, phosphates and sulphates are stored in the cytoplasm in the form? A) Gel. B) Liquid. C) Inclusion bodies. D) Solid. Show Answer Correct Answer: C) Inclusion bodies. 16. Which cell organelle participates in photo-respiration ..... A) Chloroplast. B) Peroxisome. C) Mitochondria. D) All the above. Show Answer Correct Answer: D) All the above. 17. ..... are the microbodies, which take part in glyoxylate pathway, bounded by a single membrane and are usually present in germinating fatty seeds. A) Glyoxysomes. B) Peroxisomes. C) Sphaerosomes. D) Lysosomes. Show Answer Correct Answer: A) Glyoxysomes. 18. Assertion:Na+-K+ ATPase is an important membrane associated enzyme. Reason:It helps in ion transfer across the membrane A) A. B) B. C) C. D) D. Show Answer Correct Answer: A) A. 19. Which one of the following has is own DNA? A) Mitochondria. B) Dictyosome. C) Lysosome. D) Peroxisome. Show Answer Correct Answer: A) Mitochondria. 20. Eukaryotic ribosome, chloroplast and mitochondrion are respectively A) 80S, 80S and 70S. B) 80S, 70S and 70S. C) 80S in all. D) 70S in all. Show Answer Correct Answer: B) 80S, 70S and 70S. 21. Secondary cell wall consists of A) Cellulose. B) Cellulose+ hemicellulose(more). C) Cellulose+hemicellulose(less). D) Cellulose+hemicellulose(less)+lignin. Show Answer Correct Answer: D) Cellulose+hemicellulose(less)+lignin. 22. Homologous chromosomes can be defined as: A) Chromatids of same chromosome. B) Same chromosome, same gene, different allele in different order. C) Same chromosome, different gene, same allele. D) Same chromosome, same gene, different allele in same order. Show Answer Correct Answer: D) Same chromosome, same gene, different allele in same order. 23. Statement I-Eukaryotic ribosomes are of 80S type having two subunits-50S and 30S.Statement II-Here 'S' (Svedberg's Unit) stands for the sedimentation coefficient; it is indirectly a measure of density and size. 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. 24. Enzymes are synthesized on: A) Dictyosomes. B) Ribosomes. C) Mitochondria. D) None of the above. Show Answer Correct Answer: B) Ribosomes. 25. Principal constituents of chromosomes are: A) DNA + Protein. B) DNA. C) RNA. D) TRNA. Show Answer Correct Answer: A) DNA + Protein. ← 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