This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which biomolecule is important source of energy for humans; glucose for human cells, tissues, and organs; provides fiber, sugar, and starches; provides structural support, cell wall, and cell membrane maker? A) Nucleic Acid. B) Lipid. C) Carbohydrate. D) Protein. Show Answer Correct Answer: C) Carbohydrate. 2. If an enzyme becomes over heated what effect, if any, will the heat have on the enzymatic activity? A) The enzyme will not store much chemical energy. B) The enzyme will be denatured and cannot catalyze reactions. C) The enzyme will lose its net electrical charge. D) The enzyme will lose stored genetic information. Show Answer Correct Answer: B) The enzyme will be denatured and cannot catalyze reactions. 3. Which is NOT an example of Carbs? A) Potato. B) Corn. C) Pasta. D) Lettuce. Show Answer Correct Answer: D) Lettuce. 4. ..... PO ..... CH what elements essential for life are missing from the acronym? A) Fe and Na. B) Ca and Na. C) S and N. D) S and Na. Show Answer Correct Answer: C) S and N. 5. The way an organism reacts is called- A) Photosynthesis. B) A response. C) A stimulus. D) Homeostasis. Show Answer Correct Answer: B) A response. 6. The process of making RNA from DNA is called ..... A) Translation. B) Transcription. C) DNA decoding. D) Togetherase. Show Answer Correct Answer: B) Transcription. 7. What is the function of proteins? A) They are used for cell to cell communication. B) They insulate the body, are used for short term energy and are found in glycogen. C) They are used as the structural components of the body (muscles and organs). D) They create the cell membrane. Show Answer Correct Answer: C) They are used as the structural components of the body (muscles and organs). 8. True or False:Enzymes are substrate specific A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. Which biomolecule is primarily responsible for storing energy for later use? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: B) Lipids. 10. What is a peptide bond? A) Bond that holds two amino acids together. B) A bond that holds hydrogen and oxygen molecules together. C) A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide. D) A bond that is formed by the sharing of electrons. Show Answer Correct Answer: A) Bond that holds two amino acids together. 11. 9A. Which of the following biomolecules typically contain both nitrogen and phosphate? A) Lipid. B) Proteinpro. C) Nucleic acid. D) Carbohydrate. Show Answer Correct Answer: C) Nucleic acid. 12. Each polypeptide in a protein has aminoacids linked with each other in a specific sequence. This sequence of amino acids is said to be ..... A) Primary structure of proteins. B) Secondary structure of proteins. C) Tertiary structure of proteins. D) Quaternary structure of proteins. Show Answer Correct Answer: A) Primary structure of proteins. 13. A mutation in DNA would initially start with me. A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: D) Nucleic Acids. 14. You need a steady supply of amino acids in your diet to maintain a healthy body. In order to meet this need, you should make sure you eat enough of which class of biomolecule? A) Nucleic Acids. B) Proteins. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: B) Proteins. 15. What are the atoms that all living things are made from? A) Carbon, Hydrogen, Oxygen, Potassium & Nitrogen. B) Carbon, Helium, Oxygen, Potassium & Nitrogen. C) Carbon, Hydrogen, Oxygen, Phosphorus & Nitrogen. D) Cobalt, Horses, Organs, Potatoes & Nickels. Show Answer Correct Answer: C) Carbon, Hydrogen, Oxygen, Phosphorus & Nitrogen. 16. In a molecule of double stranded DNA, the amount of adenine present is always equal to the amount of ..... A) Cytosine. B) Guanine. C) Thymine. D) Uracil. Show Answer Correct Answer: C) Thymine. 17. Which statement best describes how molecules move during DIFFUSION? A) They move from an area of HIGH concentration to an area of LOW concentration. B) They move from an area of LOW concentration to an area of HIGH concentration. C) They move closer together. D) None of the above. Show Answer Correct Answer: A) They move from an area of HIGH concentration to an area of LOW concentration. 18. Which of the following elements is not present in carbohydrates? A) Carbon. B) Hydrogen. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: C) Nitrogen. 19. Milk, Cheese, Butter, and Oils A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: B) Lipids. 20. How many Amino Acids does our body use to make proteins? A) 20. B) 10. C) 6. D) 2. Show Answer Correct Answer: A) 20. 21. Which of the following is NOT a polymer? A) Starch. B) Nucleic acids. C) Protein. D) Lipids. Show Answer Correct Answer: D) Lipids. 22. Building blocks of polymers. A) Monomer. B) Polypeptide. C) Monosaccharide. D) Glycerol. Show Answer Correct Answer: A) Monomer. 23. Which organic molecules is paired with its function? A) Nucleic acid-to store energy. B) Lipids-to regulate metabolic. C) Protein-to provide insulation. D) Carbohydrates-to provide quick-release energy. Show Answer Correct Answer: D) Carbohydrates-to provide quick-release energy. 24. CHO with a 1:2:1 ratio A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic acid. Show Answer Correct Answer: A) Carbohydrate. 25. Which is a general characteristic of lipids? A) Lipids contain nitrogen. B) Lipids are soluble in water. C) Lipids are insoluble in water. D) Lipids contain chains of amino acids. Show Answer Correct Answer: C) Lipids are insoluble in water. ← 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 9Class 11 Biology Chapter 9 Biomolecules Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books