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CHEM 210 Exams 1–8 & Final Exam – (2026) Actual Questions & Answers (Biochemistry), Exams of Biochemistry

Liberty University (LU)Biochemistry

CHEM 210 Exams 1–8 & Final Exam includes actual 2026 biochemistry questions with verified answers covering all course modules, biomolecules, functional groups, water chemistry, metabolism, glycolysis, citric acid cycle, electron transport chain, amino acids, lipids, nucleic acids, and comprehensive final exam review. Perfect for quizzes, midterms, finals, and complete CHEM 210 preparation. CHEM 210 Exams 1-8, CHEM 210 Final Exam, CHEM 210 Exam 1-8 Questions, CHEM 210 Questions and Answers, CHEM 210 Biochemistry Exam, CHEM 210 Test Bank, CHEM 210 Practice Test, CHEM 210 Study Guide, CHEM 210 Complete Review, CHEM 210 Final Review, CHEM 210 PDF, Biochemistry Exam Questions, Biomolecules Questions, Functional Groups Chemistry, Metabolism Exam, Glycolysis Questions, Citric Acid Cycle Exam, Electron Transport Chain Questions, Amino Acid Metabolism, Lipid Metabolism Questions, Nucleic Acid Questions, CHEM 210 Quiz Answers, CHEM 210 Verified Answers, College Biochemistry Exam

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2025/2026

Available from 07/02/2026

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CHEM 210 Exam 1 - 8
Questions and Answers (Verified Answers)
1. According to the Module, a compound with a molecular mass of 8,000 g/mol is
considered a macromolecule.: True
2. Biomolecules can have only two functional groups.: False
3. The following functional group is an amine.: True
4. In a eukaryotic cell, the organelles called ribosomes serve the purpose of digesting
macromolecules.: False
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Download CHEM 210 Exams 1–8 & Final Exam – (2026) Actual Questions & Answers (Biochemistry) and more Exams Biochemistry in PDF only on Docsity!

CHEM 210 Exam 1 - 8

Questions and Answers (Verified Answers)

  1. According to the Module, a compound with a molecular mass of 8,000 g/molis considered a macromolecule.: True
  2. Biomolecules can have only two functional groups.: False
  3. The following functional group is an amine.: True
  4. In a eukaryotic cell, the organelles called ribosomes serve the purpose ofdigesting macromolecules.: False
  1. Carbon dioxide has a linear molecular shape AND has a bond angle of180o: True
  2. Of the following, is not a property of carbon.: possessing five valence electrons
  3. Which of the following is an element not typically found in living organ-isms?: Br 8. Which of the following functional groups is prominent in carbohydrates?: - Alcohols
  4. The following functional group is an example of .: Ketone
  1. For pentane, there are carbon and hydrogen atoms.: 5, 17. For an organic compound, which structure is the most efficient to draw?- : Line bond
  2. When writing an organic functional group, scientists often write an "R" aspart of the structure. What does the R indicate?: Rest of the molecule
  3. According to the module, the study of NON-carbon compounds is referredto as .: Inorganic chemistry

20. Which of the following is not a functional group discussed in this module?- : All of these were discussed.

  1. Which number would be closest to the approximate number of ribosomesin an E. coli cell?: 25,
  2. Which of the following would most likely have a cell wall?: Fungal cells
  3. Eukaryotes have molecules that provide a protective structure. This net- work, which is found in all eukaryotes, is called the .: Cytoskele- ton
  4. What is the molecule responsible for gout?: Uric acid
  5. About how many different elements are found in living organisms?: 30

Carbon can form strong covalent bonds with a variety of different elements.

  1. Besides, carbon can form double and triple bonds with other carbon atoms and other elements (N and O). 3. Carbon can form long chains by forming numerous carbon-carbon bonds; we call these large molecules polymer. 4. Lastly, carbon canform cyclic structures, which are also called ring compounds.
  2. What the definition of inorganic chemistry? How does it differ from organic chemistry?: Inorganic chemistry is the study of all other elements, but carbon. Organic chemistry is the study of carbon-based compounds both in living and non-living organisms. There is no need to have separate sub-disciples for organic and inorganic chemistry, but for historical and organizational reasons, the differenceexists. 30. Biochemists study the communication within and among organisms. Ac-cording to the module, what are two other aspects of living organisms that

biochemists study?: In the module, biochemists also study the structure andfunction of biomolecules and the chemical reactions of organisms.

  1. The pH of a solution of 3.2 x 10-10 M NaOH is:: 4.5 ([Kw=[H+][OH-] = 1.0 x10-14; [H+][3.2 x 10-10] = 1.0 x 10-14 ;[H+]=3.1 x 10-5; pH=-log[3.1 x 10-5]=4.5])
  2. Which attribute contributes to water's unusual properties?: All of the an-swers are correct
  3. The bent shape of water is due to .: The unshared electron pairs on the oxygen atom
  4. Which diagrams correctly represent a hydrogen bond?: A and Dboth show a proton donor and acceptor
  1. Which of the following is the free-energy change of a reaction?: ”G
  2. Which of the following is the change in entropy of a reaction?: None of theabove
  1. Which buffer system is used by the blood to maintain pH balance?: Bicar-bonate buffer system
  2. A buffer can neutralize only a certain amount of acid and base. We say thatthis is its: Buffer capacity
  3. Is a pH of 7.00 acidic, neutral, or basic?: Neutral
  4. The "ion product" is equal to what value?: 1.0 x 10-
  5. In equilibrium constant expressions, the concentration is expressed inunits of as indicated by the brackets [ ].: molarity
  6. A pH = 5.0 indicates a concentration of OH- (in M) of : 10-
  7. Which of the following compounds would not be soluble in water?: Oil
  8. The hybridization of the central atom in water is .: sp 53. Four identical molecules dissolve in water. Each molecule contains both a polar portion and nonpolar portion of structure. The four molecules interactin such a way that the nonpolar sections align. This is an example of the .: Hydrophobic effect
  9. How does the strength of a hydrogen bond compare to the strength of a London Force? Also, how about the strength of a hydrogen bond compared to a dipole-dipole

B) ”H

C) "+"

D) entropy E) "+"

  1. What is the hydrophobic effect and how does a clathrate help explain this phenomenon?: The hydrophobic effect helps scientists explain how biologicalmolecules form and interact. For instance, when molecules with both a nonpolar andpolar regions dissolve in water, the nonpolar regions pack together. The packing of the nonpolar regions minimizes the interaction with water and the polar region interact with water, which in total is called the hydrophobic effect. The driving forcebehind this effect is the spontaneous drive of water to bind to itself through hydrogenbonds. To maximize the hydrogen bonds, water orders itself around the hydrophobicportion of the nonpolar regions in a cage structure also called a clathrate. In so doing, water can form bonds with itself and also permit the nonpolar regions to be dissolved.
  2. he amino acids serine and threonine both contain sulfur atoms.: False
  3. The following secondary structure shown below is an example of an alphahelix.: True
  4. The side chain of histidine is bonded to the backbone nitrogen atom: False
  1. The order of amino acids in a protein is written .: N to C-terminus
  2. In one turn of a helix, there approximate amino acids.: 3.
  1. In an alpha helix, the R groups on the amino acid residues:: Are found onthe outside of the helix spiral
  2. Motifs are classified primarily by their:: Content and arrangement of the secondary structure
  3. The secondary structure shown below is an example of a(n):: Parallel betasheet 78. A single folded polypeptide has a globular shape, which describes its structure.: Tertiary
  4. How many classes of enzymes are recognized by the IUBMB?: 6
  5. An enzyme requires Cr+3 for catalysis. Under conditions of chromium deficiency, when the enzyme lacks chromium, this enzyme would be referredto as a(n):: Apoenzyme
  6. When a substrate has just started its conversion to a new molecule, it issaid to be in the .: Transition state 82. What three factors influence the rate of an enzyme-catalyzed reaction?: - pH, concentration, and temperature
  7. Which of the following describes induced fit?: Substrate binding induces a conformation change in the enzyme

B) It is describing the quaternary structure, which has two or more independent polypeptide chains that associate with one another to form a quaternary structure.

  1. There are collections of protein structure that fit between true secondaryand true tertiary structure. What is the name of the collections of protein structure? Explain this type of structure.: Motifs occupy a position between secondary and tertiary. Motifs are particularly stable arrangements of secondary

structure, including the connections between them. Motifs are found in a variety ofproteins from across all organisms.

  1. What would "PRSGED" indicate about the structure and composition to a protein scientist? Explain in at least two complete sentences.: The "PRSGED" is an example of protein primary structure, which is the order of amino acids in a peptide or protein. Each of the letters (i.e. P, R, ...) represents one of the 20 amino acids as a one-letter abbreviation). The order of amino acids is written fromN-terminal to C- terminal. The letters in this peptide stand for Proline, Arginine, Serine, Glycine, Glutamic Acid, and Aspartic Acid.
  2. What is the spot on an enzyme where reactions take place? Explain the characteristics of this spot.: The active site is the spot on the enzyme where catalysis takes place. This area is often small when compared to the overall sizeof the protein. In fact, about 10 amino acids make up the active site.
  3. Which of the following monosaccharides is not an aldose?: Dihydroxyace-tone
  4. When two monosaccharides are epimers:: They differ only in the configura-tion about one carbon atom 93. Which pair is anomeric?