This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following may be caused by a lack of enough proteins in your diets? A) Frail nails and hair. B) Fat deposit in your iris. C) Low blood-sugar levels. D) High blood pressure. Show Answer Correct Answer: A) Frail nails and hair. 2. What is the basic building block of matter? A) Atom. B) Cell. C) All the above. D) None of the above. Show Answer Correct Answer: A) Atom. 3. Which of the following is a non-reducing sugar? A) Glucose. B) Sucrose. C) Maltose. D) Lactose. Show Answer Correct Answer: B) Sucrose. 4. What are the three main types of lipids found in the body? A) Triglycerides, phospholipids, and sterols. B) Monosaccharides, disaccharides, polysaccharides. C) Proteins, carbohydrates, nucleic acids. D) Saturated, unsaturated, trans fats. Show Answer Correct Answer: A) Triglycerides, phospholipids, and sterols. 5. Biochemical reactions that require high temperatures to proceed are able to take place at body temperature within the cells of living organisms. Which factor is mainly responsible for allowing biochemical reactions to proceed at body temperature? A) The cellular enzymes act as catalysts. B) The small size of cells keeps reactants together. C) The pH of the cytoplasm increases reaction rate. D) The reactants are present in small quantities in the cell. Show Answer Correct Answer: A) The cellular enzymes act as catalysts. 6. What are the monomers of carbohydrates? A) Monosaccharides. B) Nucleotides. C) Amino Acids. D) Glycerol & Fatty Acids. Show Answer Correct Answer: A) Monosaccharides. 7. N the ..... of tRNA, three unpaired nucleotides are present called as anticodon which pair with codon present on mRNA. A) Amino acid binding loop. B) T loop. C) Anticodon loop. D) DHU loop. Show Answer Correct Answer: C) Anticodon loop. 8. An advertisement for a health supplement for dogs claims to build lean muscle and strengthen tendons and ligaments, as well as provide energy. Which two biomolecules must the supplement contain to provide these benefits? A) Carbohydrates and lipids. B) Proteins and carbohydrates. C) Nucleic acids and carbohydrates. D) Lipids and nucleic acids. Show Answer Correct Answer: B) Proteins and carbohydrates. 9. Glycogen and starch are A) Lipids. B) Carbohydrates. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Carbohydrates. 10. Function:insulation A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: B) Lipid. 11. What is the function of a carbohydrate? A) Short term energy storage. B) Movement. C) Stores genetic information. D) Speeds up reactions. Show Answer Correct Answer: A) Short term energy storage. 12. Which biomolecule contains pastas and breads? A) Lipid. B) Protein. C) Nucleic Acid. D) Carbohydrate. Show Answer Correct Answer: D) Carbohydrate. 13. What is the major function of lipids? A) Energy storage. B) Cell membrane structure. C) Muscle tissue formation. D) Cell signaling. Show Answer Correct Answer: A) Energy storage. 14. DNA and RNA differ in A) Sugar. B) Purines. C) Pyrimidines. D) Both (a) and (c). Show Answer Correct Answer: D) Both (a) and (c). 15. A molecule that is produced by living things is called a ..... A) Gas. B) Carbon. C) Molecule. D) Biomolecule. Show Answer Correct Answer: D) Biomolecule. 16. Just under an orca's skin lies a thick layer of blubber. Blubber helps insulate a whale from heat loss. Based on this information, which biomolecule is blubber primarily made of? A) Lipids. B) Nucleic Acids. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: A) Lipids. 17. Which biomolecule is made of nucleotides and contain your DNA? A) Carbohydrate. B) Lipids. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: D) Nucleic Acid. 18. Examples:Insulin and Hemoglobin A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: C) Protein. 19. Lipids are made up of which of the following? A) Glycerol and fatty acids tails. B) Glycerol and monolipids. C) Fatty acids and phosolipids. D) Amino acids and nucleotides. Show Answer Correct Answer: A) Glycerol and fatty acids tails. 20. The shape of the DNA molecule is called ..... A) Spiral staircase. B) Deoxyribose twist. C) Dodecahedron. D) Double helix. Show Answer Correct Answer: D) Double helix. 21. Why are lipids important? A) They make DNA and are responsible for the coding of your traits. B) They build muscle and work as enzymes. C) They are a fast source of energy. D) They provide insulation (warmth) and long term energy. Show Answer Correct Answer: D) They provide insulation (warmth) and long term energy. 22. Biomolecules consist mainly of the elements ..... A) Carbon, Nitrogen, Hydrogen, Oxygen. B) Carbon, Hydrogen, Oxygen, Potassium. C) Carbon, Nitrogen, Hydrogen, Sulfur. D) Nitrogen, Hydrogen, Oxygen, Sodium. Show Answer Correct Answer: A) Carbon, Nitrogen, Hydrogen, Oxygen. 23. What are the functions of carbohydrates in the body? A) Carbohydrates are harmful to the body and should be avoided. B) Carbohydrates have no function in the body. C) Carbohydrates are only used for energy storage in the body. D) Carbohydrates serve as the primary source of energy for the body and also play a role in cell signaling, immune function, and the structure of DNA and RNA. Show Answer Correct Answer: D) Carbohydrates serve as the primary source of energy for the body and also play a role in cell signaling, immune function, and the structure of DNA and RNA. 24. In a chemical reaction, the chemicals on the left side of a reaction arrow ( ..... $\rightarrow$ ..... ) are called A: ..... and the the chemicals on the right side are called B: ..... A) A:Products; B:Ingredients. B) A:Ingredients; B:Products. C) A:Reactants; B:Ingredients. D) A:Reactants; B:Products. Show Answer Correct Answer: D) A:Reactants; B:Products. 25. Which of the following biomolecules typically contains both nitrogen and phosphate? A) Lipid. B) Protein. C) Nucleic acid. D) Carbohydrate. Show Answer Correct Answer: C) Nucleic acid. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 9 Biomolecules Quiz 1Class 11 Biology Chapter 9 Biomolecules Quiz 2Class 11 Biology Chapter 9 Biomolecules Quiz 3Class 11 Biology Chapter 9 Biomolecules Quiz 4Class 11 Biology Chapter 9 Biomolecules Quiz 5Class 11 Biology Chapter 9 Biomolecules Quiz 6Class 11 Biology Chapter 9 Biomolecules Quiz 7Class 11 Biology Chapter 9 Biomolecules Quiz 8Class 11 Biology Chapter 9 Biomolecules Quiz 10Class 11 Biology Chapter 9 Biomolecules Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books