Which of the following is incorrect about an omega-3 fatty acid whose hydrocarbon chain has only one double bond? a. It is a monounsaturated fatty acid b. O c. Od. None; all the other choices are correct Its double bond is between C #3 and C #4 from the carboxyl group Its shape is not straight or linear
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- Saturated fatty acids are so named because they are saturated with (a) hydrogen (b) water (c) hydroxyl groups (d) glycerol (e) double bondsof the following is incorrect about the sphingolipids? a. The backbone is sphingosine which has an amine group to which a fatty acid can be attac ▸ b. The sphingophospholipids have a phosphate group with an alcohol attached c. They are components of membranes Od. The cerebrosides have oligosaccharides as head groupsWhich of the following is incorrect about the triacylglycerols? a. If they are of animal origin, they are called fats Ob. If two or three of their acyl groups are unsaturated, they are called oils Oc. They contain three ester bonds Od. If two or three of their acyl groups are saturated, they are liquids at room temperature
- Indicate whether each of the following statements about the structural characteristics of monosaccharides is true or false. a. An aldehyde group or a ketone group, but not both, is always present. b. A hydroxyl group must be present on each carbon atom.A carboxyl group is symbolizeda. —OH.b. —NH2.c. —CH3.d. —CH2OH.e. —COOH.Look at the structure of stearic acid as well as oleic acid and answer the following questions: a.Write which of these two is saturated fatty acid. b.Which of these two has a higher melting points. c.Which of these two will change the color of bromine water to clear. d.Name the unsaturated fatty acid using both delta and Omega nomenclature I can not separate the question, it is one question with four parts. I only need "D" answered, please
- Which of the following statements concerning structural characteristics of bile acids is CORRECT? * A. No hydroxyl groups are present B. More hydroxyl groups are present than cholesterol C. Fewer hydroxyl groups are present than cholesterol D. Both have the same hydroxyl groups present with cholesterolFor the following peptide: group 3 C-NH, CH, H 40 2 group 1 NH, HO. CH group 4 N. N-H group 2 Which of the bond in the structure is NOT free to rotate? A. Bond 4 B. Bond 3 C. Bond 2 D. Bond 1 O E. None of these 3.The figure below illustrates the molecular structures of two fatty acids. A B H₂C The structural formula of erucic acid and behenic acid с H₂C D erucic acid behenic acid Which of the following best explains why erucic acid is liquid at room temperature but behenic acid is solid at room temperature? O OH The presence of a double carbon to carbon bond in erucic acid prevents the molecule from packing closely together. The lack of any double carbon-carbon bonds in behenic acid causes the molecule to be come polar and therefore packed more tightly. The larger number of carbon atoms in erucic acid prevents the molecule from packing tightly together. OH The smaller number of carbon atoms in behenic acid creates stronger covalent bonds between the carbon atoms allowing for them to pack more tightly together.
- Choose A if the statement is CORRECT B if the statement is WRONG This amino acid is/has: polar charged basic side chain 6. 7. 8. 9. aromatic side chain 10. K H H H N-C-C CH₂ CH ₂ CH₂ CH ₂ -Z N I NH₂ =O OHObserve the structures of glucose and fructose in figure shown. These two molecules are H. H-C-OH Н—С—он C=0 но-с—н HO-C-H H-C-OH H-C-OH H-C-OH H-C-OH H-C-OH H-C-OH H H. glucose fructose A. geometric isotopes. B. enantiomers. C. stereoisomers. D. structural isomers.Indicate whether each of the following statements about the structural characteristics of monosaccharides is true or false. a. Both an aldehyde group and a ketone group are always present. b. An aldehyde group and at least two hydroxyl groups must be present.