Rutgers Intro Biochem 301 -Murphy Module 1 Questions and Answers

©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/14 ΔG 0. ΔG = zero. ΔH 0. - Ans:-ΔG 0. The following molecule is an example of which class of compounds?CH3CH2CH2COOH Hydrocarbon Acid Alcohol Aldehyde Ketone - Ans:-Acid A thermodynamically unfavorable reaction can become favorable when coupled to a highly endergonic reaction. true false - Ans:-false Determine the pH of the following aqueous solution that contains a [OH-] of 2.5 X 10-4. 9.7 ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/14 10.4 10.8 8.4 7.4 - Ans:-10.4 Which of the following is not an example of a macromolecule? Nucleic acid Protein Polysaccharide Enzyme Amino acid - Ans:-Nucleic Acid and Amino ACID The macromolecules that serve in the storage and transmission of genetic information are: carbohydrates. lipids. membranes. ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 4/14 nucleic acids. proteins. - Ans:-nucleic acids. Which of the following statements is not true of the lysosome? It functions in intercellular digestion Both ER and Golgi apparatus are involved in its formation It is capable of degrading most biomolecules It is involved in the packaging and secretion of cell products It is involved in pathological conditions such as gout and rheumatoid arthritis - Ans:-It is involved in the packaging and secretion of cell products The chemical properties of organic molecules are determined by specific arrangements of atoms called _____________. Structure Bonds Functional groups Radicals ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 5/14 Molecules - Ans:-Functional groups Metabolism is best defined as the _________. Reactions of living cells Reactions that synthesize large molecules in living cells Reactions that degrade molecules in living cells Conversion of food molecules to energy Reactions that synthesize and/or degrade molecules in living cells - Ans:-Reactions that synthesize and/or degrade molecules in living cells Which one of the following has the cellular components arranged in order of increasing size? Amino acid protein mitochondrion ribosome Amino acid protein ribosome mitochondrion Amino acid ribosome protein mitochondrion Protein amino acid mitochondrion ribosome Protein ribosome mitochondrion amino acid - Ans:-Amino acid protein ribosome mitochondrion ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 6/14 Determine the ratio of conjugate base over acid, [A-]/[HA], with a pKa of 6.0 in a solution of pH of 5.5. 3.16 0.316 31.6 0.0316 316.0 - Ans:-0.316 The four most abundant chemical elements in living systems are: hydrogen, carbon, nitrogen and oxygen. sodium, potassium, nitrogen and sulfur. hydrogen, oxygen, sulfur and phosphorus. carbon, nitrogen, oxygen and potassium. sodium, potassium, carbon and oxygen. - Ans:-hydrogen, carbon, nitrogen and oxygen. Determine the pKa for the following solution of acid containing [0.022] A- and [0.1] HA. The pH of the solution is 5.24 4.10 ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 7/14 4.76 5.90 6.5 7.00 - Ans:-5.90 Determine the pH of the following solutions who's moles of H+ are 0.002 in a total volume of 5L. 2.40 340 3.40 4.30 7.0 - Ans:-3.40 What functional groups are present on this molecule? Ether and aldehyde ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 8/14 Hydroxyl and aldehyde Hydroxyl and carboxylic acid Hydroxyl and ester Hydroxyl and ketone - Ans:-Hydroxyl and aldehyde Which of the following is not a basic element of life Phosporus Hydrogen Nitrogen Oxygen All of the above are basic elements of life - Ans:-All of the above are basic elements of life Which of the following small molecules do not for biopolymers Amino acids Sugars Fatty acids ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 9/14 Nucleotides C and D - Ans:-Fatty acids Determine the pH for the following solution of acetic acid containing [0.022] A- and [0.1] HA. The pKa of acetic acid is 4.76 4.10 4.76 4.30 5.10 5.24 - Ans:-4.10 Which of the following is NOT classed as a lipid? Phosphatidyl serine Triacylglycerol Palmitic acid Glycerol Cholesterol - Ans:-Glycer