CHEM 210 Biochemistry Module 5 Exam | Portage Learning Questions and Verified Answers | 100% Guarantee Pass | Latest 2025/2026

CHEM 210 Biochemistry Module 5 Exam | Portage Learning Questions and Verified Answers | 100% Guarantee Pass | Latest 2025/2026 Which of the following is a PUFA? - ANSWER -(the one with double bonds) A ________ is a carboxylic acid that is a structural component of lipids. Amino acid Carotenoid Sphingolipid cholesterol None of the above - ANSWER -None of the above A particular lipid is a liquid at room temperature, so it is called a(n) ________. Oil Fat Lipid Membrane Sphingolipid - ANSWER -Oil Identify the lipid class given by the structural formula: - ANSWER (phosophoglyceride shown) ________ are a class of membrane proteins that are firmly associated with the membrane bilayer. Peripheral protein Integral protein Channel protein Transport protein Inner transmembrane protein - ANSWER -Integral protein __________ is/are NOT made from isoprene units. A. Cholesterol B. Carotenoid molecules C. Fatty acids D. Both A and C E. All of the above - ANSWER -Fatty acids Which notation is for a fatty acid with two double bonds? A) 18:1(Δ12) B) 18:2(Δ12) C) 14:2(Δ9,12) D) 2:18(Δ12,14,16) E) 14:1:2(Δ9,12) - ANSWER -14:2(Δ9,12) Which simplified notation indicates a 20-carbon omega-3 fatty acid that contains no other double bonds? A) 20:1 (Δ11) B) 20:1(Δ18) C) 20:1(Δ17) D) 20:1(Δ3) E) 20:3(Δ3omega) - ANSWER -20:1(Δ17) __________ is used as the backbone molecule in the formation of storage fats. Ceramide Glucose Sphingolipid Glycerol Phosphoglycerol - ANSWER -Glycerol Which types of membrane lipids determine the blood type of humans? Triacylglycerols Phosphoglycerides Cholesterol Fatty acids Sphingolipids - ANSWER -Sphingolipids Sphingolipids are found in high concentrations in the membranes of __________. organelles myelin sheaths all cells heart cells Vitamin K lipids - ANSWER -myelin sheaths In a sphingolipid, the fatty acids are attached at carbon-2 by this type of linkage? An ether linkage Amide linkage An ester linkage A peroxide linkage Alkyl linkage - ANSWER -Amide linkage Membrane proteins: Are sometimes peripheral Are sometimes integral Are types of lipids Both A and B None of the above - ANSWER -Both A and B Peripheral membrane proteins: Go all the way through the membrane and are firmly attached to the membrane Are firmly attached to the membrane