This quiz works best with JavaScript enabled. Home > Agriculture > Biochemistry > General > Biochemistry – Quiz 34 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biochemistry Quiz 34 (13 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following are the monomers of lipids? A) Glycerol and fatty acids. B) Nucleotides. C) Amino acids. D) Monosaccharides. Show Answer Correct Answer: A) Glycerol and fatty acids. 2. Which is a monomer of carbohydrates? A) Nucleotide. B) Polysaccharide. C) Monosaccharide. D) Amino acid. Show Answer Correct Answer: C) Monosaccharide. 3. What is the reason why oil and water don't mix? A) Water can only mix with non-polar molecules. B) Oil is too light to mix with water. C) Water can only mix with polar molecules. D) Oil is too heavy to mix with water. Show Answer Correct Answer: C) Water can only mix with polar molecules. 4. Living organisms are made of organic and inorganic substances. How can each of these substances be classified based on the complexity of their molecules? A) Organsims are made of molecules. B) Inorganic substances, such as water, mineral salts, molecular oxygen and carbon dioxide, are small molecules made up of few atoms. Organic substances, in general, such as glucose, fatty acids and proteins, are much more complex molecules made of sequences of carbons bound in carbon chains. The capacity of carbon to form chains is one of the main chemical facts that allowed for the emergence of life on the planet. C) Biochemistry is nonsense. D) None of above. Show Answer Correct Answer: B) Inorganic substances, such as water, mineral salts, molecular oxygen and carbon dioxide, are small molecules made up of few atoms. Organic substances, in general, such as glucose, fatty acids and proteins, are much more complex molecules made of sequences of carbons bound in carbon chains. The capacity of carbon to form chains is one of the main chemical facts that allowed for the emergence of life on the planet. 5. Which of the following is an example of a hydrogen bond? A) The peptide bond between amino acids in a protein. B) The bond between an oxygen atom and a hydrogen in the carboxyl group of a fatty acid. C) The bond between Na+ and Cl- in salt. D) The attraction between a hydrogen of one water molecule and the oxygen of another water molecule. Show Answer Correct Answer: D) The attraction between a hydrogen of one water molecule and the oxygen of another water molecule. 6. Which of the following is a topic that would not help with the concept of biochemistry? A) Receptors. B) DNA. C) Niches. D) Enzymes. Show Answer Correct Answer: C) Niches. 7. Gluconeogenesis predominanly occurs is A) Liver. B) Brain. C) Sketelal muscle. D) Skeletal and cardiac muscles. Show Answer Correct Answer: A) Liver. 8. Which macromolecule is used for short term energy storage? A) Nucleic acids. B) Lipids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: C) Carbohydrates. 9. What is the atomic number for an element with three protons? A) 6. B) 3. C) 2. D) 1. Show Answer Correct Answer: B) 3. 10. The part of the atom that carries a negative charge is ..... A) The proton. B) The electron. C) The neutron. D) The nucelus. Show Answer Correct Answer: B) The electron. 11. What kind of charge do protons have? A) Positive. B) Negative. C) Neutral. D) None of above. Show Answer Correct Answer: A) Positive. 12. What is the first enzyme that transforms glucose to glucose-6-phosphate (G6P)? A) Hexokinase (HK). B) Triose phosphate isomerase (TIM). C) Phosphoglycerate kinase (PGK). D) Phosphofructokinase (PFK). Show Answer Correct Answer: A) Hexokinase (HK). 13. A fatty acid is unsaturated if it A) Contains carbon - carbon double bonds. B) Contains a carboxyl group. C) Bonds to a nucleotide. D) Contains hydrogen. Show Answer Correct Answer: A) Contains carbon - carbon double bonds. ← PreviousRelated 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