This quiz works best with JavaScript enabled. Home > Agriculture > Biochemistry > General > Biochemistry – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biochemistry Quiz 12 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Monosaccharides are monomers of A) Carbohydrates. B) Nucleic Acids. C) Lipids. D) Proteins. Show Answer Correct Answer: A) Carbohydrates. 2. Carbohydrates (or sugars) typically end with what letters? A) - OES. B) - OSE. C) - OTE. D) - ASE. Show Answer Correct Answer: B) - OSE. 3. What is the smallest bit of an element you can have that has all the properties of that element? A) A molecule. B) A compound. C) An element. D) An atom. Show Answer Correct Answer: D) An atom. 4. Below are the saturated fats characteristics. EXCEPT A) From animal. B) Have double bond. C) Liquid in room temperature. D) Linear in structure. Show Answer Correct Answer: C) Liquid in room temperature. 5. How do the number of H atoms compare to the number of O atoms in a carbohydrate? A) There are TWICE as many H. B) They are the same amount. C) There are THREE times as many H. D) There are TWICE as many O. Show Answer Correct Answer: A) There are TWICE as many H. 6. Which of the following are rarely found in plant cells? A) Cytoskeletons. B) Vacuoles. C) Chloroplasts. D) Lysosomes. Show Answer Correct Answer: D) Lysosomes. 7. Acts as the cell's "bones and muscles" by furnishing an internal framework that determines cell shape, supports other organelles A) Cytoskeleton. B) Cytosol. C) Cytoplasm. D) Cell Membrane. Show Answer Correct Answer: A) Cytoskeleton. 8. Wax is an example of a ..... A) Carbohydrate. B) Nucleic acid. C) Lipid. D) Protein. Show Answer Correct Answer: C) Lipid. 9. Proline and hydroxyproline are amino acids? A) No, are proteins. B) Yes. C) Yes, because of its amino group. D) No, are imino acids. Show Answer Correct Answer: D) No, are imino acids. 10. Proteins, starch, and DNA are similar in that they are all A) Made of amino acids. B) Made of simple sugars. C) Organic compounds. D) Parts of genes. Show Answer Correct Answer: C) Organic compounds. 11. Which molecules form the plasma membrane of an animal cell? A) Glucose. B) Phospholipids. C) Nucleic acid. D) Polypeptide. Show Answer Correct Answer: B) Phospholipids. 12. Enzymes are ..... that ..... chemical reactions by lowering the activation energy of the reaction. A) Lipids, slow down. B) Proteins, speed up. C) Proteins, slow down. D) Lipids, speed up. Show Answer Correct Answer: B) Proteins, speed up. 13. The basic building block of nucleic acids A) Monosaccharides. B) Fatty acids. C) Nucleotides. D) Amino acids. Show Answer Correct Answer: C) Nucleotides. 14. Which if the following foods are rich in Vitamin A? A) Milk fortified with vitamin A. B) Liver. C) Orange fruits and vegetables (like cantaloupe, carrots, sweet potatoes). D) All of the above. Show Answer Correct Answer: D) All of the above. 15. What are the single sugars that are the building blocks of carbohydrates? A) Monosaccharides. B) Disaccharides. C) Amino acid. D) Polysaccharides. Show Answer Correct Answer: A) Monosaccharides. 16. Monomer is to Macrocolecule like ..... is to ..... A) Building is to Carpenter. B) Brick is to Building. C) Building is to Bricks. D) Carpenter is to Building. Show Answer Correct Answer: B) Brick is to Building. 17. The following statements about enzymes are true, except: A) Complex organic compound which has the ability of speeding chemical reactions w/out being themselves affectedin the process. B) They are protein in nature. C) They target any molecule that goes inside our body. D) They have unique characteristics such as shape, specifity and function. Show Answer Correct Answer: C) They target any molecule that goes inside our body. 18. It is the region of the enzyme that binds the substrate, to form an enzyme-substrate complex, and transforms itinto product. A) Active Site. B) Activator. C) Co-Factor. D) Inactive Portion. Show Answer Correct Answer: A) Active Site. 19. Nucleotides are made up of three parts. The three parts are ..... A) DNA, RNA, and a sugar. B) A lipid, a fat, and an oil. C) A carbohydrate, a protein, and a fat. D) A sugar, a phosphate, and a base. Show Answer Correct Answer: D) A sugar, a phosphate, and a base. 20. What type of macromolecule are enzymes? A) Nucleic Acid. B) Carbohydrate. C) Lipid. D) Protein. Show Answer Correct Answer: D) Protein. 21. Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enables it to move from the roots to the leaves of plants? A) Water expands as it freezes. B) Water is an excellent solvent. C) Water exhibits cohesive and adhesive behavior. D) Water is able to moderate temperature. Show Answer Correct Answer: C) Water exhibits cohesive and adhesive behavior. 22. What bond occurs between two oppositely charged particles which is the stongest noncovalent force that occurs over greater distances? This bond also can be weakened significantly by water molecules which water can interfere with bonding. A) Hydrogen bond. B) Van der Waals forces. C) Hydrophobic bond. D) Ionic bonds. Show Answer Correct Answer: D) Ionic bonds. 23. After eating a large plate of spaghetti, an organism must break down the starch into it smaller monomer sugars using which reaction? A) Hydrolysis. B) Photosynthesis. C) Rehydration. D) Dehydration. Show Answer Correct Answer: A) Hydrolysis. 24. "mad scientist" who took this photo, providing evidence for the structure of DNA, and had it stolen? A) Franklin. B) Crick. C) Hooke. D) Watson. Show Answer Correct Answer: A) Franklin. 25. What element is found in proteins but not carbs nor lipids? A) Nitrogen. B) Hydrogen. C) Oxygen. D) Carbon. Show Answer Correct Answer: A) Nitrogen. 26. These chemicals help the body resist changes in pH. They are particularly useful in the blood. A) Buffers. B) Salts. C) Acids. D) Bases. Show Answer Correct Answer: A) Buffers. 27. Combination of anabolic and catabolic reactions A) Catabolism. B) Metabolism. C) Anacatabolism. D) Metastasis. Show Answer Correct Answer: B) Metabolism. 28. Meats are examples of ..... A) Lipids. B) Carbohydrates. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: D) Proteins. 29. In plants, a storage product that results from the dehydration synthesis of many glucose molecules is A) An oil. B) Protein. C) Starch. D) A phosphate. Show Answer Correct Answer: C) Starch. 30. Which of the following has the HIGHEST pH? A) Human blood. B) Stomach acid. C) Lemon juice. D) Sea water. Show Answer Correct Answer: D) Sea water. ← PreviousNext →Related QuizzesBiochemistry QuizzesAgriculture QuizzesBiochemistry Quiz 1Biochemistry Quiz 2Biochemistry Quiz 3Biochemistry Quiz 4Biochemistry Quiz 5Biochemistry Quiz 6Biochemistry Quiz 7Biochemistry Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books