fatty acid
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- Please note the image below: ¹CH₂ 3CH₂ . ZCH What is the abbreviation for the fatty acid bond at the number 2 position 18:2(⁹.12) 17:2(A8.11) 18:2(A6, ⁹) 17:2(46⁹) Position #2 is not linked to a fatty acid.Trans-fatty acids are synthetic forms of fatty acids made from altered unsaturated fatty acids. Trans-fatty acids are denser, solid at room temperature, and store more energy in the same unit of volume than unsaturated fatty acids. The production of trans-fatty acids involves the reorientation of one of the hydrogen atoms attached to a double-bonded car- bon atom, as illustrated in the figure below. unsaturated fatty acid OHHHHH HOC CCCC-c II I I HHHH trans-fatty acid |||| Molecular model of an unsaturated and trans-fatty acid Based on the structures shown above, H -C-C-C-C-C-H HHHHH TTTTT !!!!! HHHHH OHHHHH | ! ! ! ! ! HO-C-C-C-C-c-c IIII HHHH H HHHHH H HH III C-C-C-H I (a) Identify one property of all fatty acids. (b) Describe one of the functions of fatty acids in living systems. (c) Explain how the reorientation of the hydrogen atom as shown in the image allows the trans- fatty acids to be denser and solid at room temperature. Respond to each part in 3 to 5 complete sentences.Which of the following statements is incorrect? The rigidity of a saturated fatty acid is based on the strong bonding between sp3-hybridized carbon chains. Glycerophospholipids are the most abundant lipids in cellular membranes. In delta notation of fatty acid nomenclature, the numbering starts at the α-carbon from the carboxylic acid end. Hormones, such as testosterone, estradiol and progesterone are examples of steroidal lipids.
- Which of the following statements about amino acids is/are incorrect? 1. Standard amino acids are so named because these are the only amino acids there are. 2. Essential amino acids can be synthesized by the organism. 3. All standard amino acids are optically active. 4. Overall, naturally occurring amino acids are equally likely to be found having either an R or S configuration around the alpha carbon. O 1, 3, and 4 O 1, 2, 3, and 4 1 and 2 O 1, 2, and 3There are 20 primary amino acids that make up all proteins. But why those 20? Why Leucine? Arginine? Glutamine? Tryptophan? Why not a side chain with just two carbons, or three or four in a straight chain? Why not one with two hydroxyl groups? Or other shapes? Or containing other elements? What factors do you think might be involved?02-CH-CH Gln12 Regions of 2 receptors that interact on dimerization are shown below. Identify the types of interactions between amino acids based on their interacting side chains (figures of amino acids also provided). Receptor 1 Cys36 Cys$2 CH2 Receptor 2 HS-H2 S-CH Ala45 CH, Cys75 Asp68 HN-CH-CH-CH-CHst Lys65 CH Ser53 -CH,-OH HN CH H,C Phe50 Val98 Interacting Amino Acids Type of Interaction Ser53:Gln12 Asp68:Lys65 Cys75:Cys82 Phe50:Val98 Amino Acids: H. H-C-CH,- H-C-CH, H-C-CH,CH,CCH,-N,
- ẞ-Calendic acid is an omega-6, conjugated fatty acid that is the all-trans isomer of a-calendic acid. HOOC—CH,CH, CH, CH,CH, CH, Part: 0/2 Part 1 of 2 H C=C H C-H H-C H C=C H CH₂ -CH2-CH2-CH2-CH₂ When this fatty acid is partially hydrogenated with one equivalent of H₂ in the presence of a Pd catalyst, a mixture of constitutional isomers is formed. Modify the given structure to draw one of these possible products.Oligopeptide 1 Oligopeptide 2 N. N- H. N-H H Give the three-letter and one-letter names of the amino acids in each oligopeptide starting from the amino terminal to the carboxyl terminal. Make sure that the amino acid names are arranged in CORRECT order for both oligopeptides.on During the formation of ester bond, which of the following takes place? O a. Hydrogen atom is gained from the hydroxyl group on glycerol and a hydroxyl group is lost from the carbonyl group on fatty acid of O b. Hydroxyl group is lost from carboxyl group on glycerol and a hydrogen atom is lost from carboxyl group of one fatty acid O c. Hydroxyl group is lost from carboxyl group on glycerol and a hydrogen atom is lost from the hydroxyl group on fatty acid O d. Hydrogen atom is lost from the hydroxyl group on glycerol and a hydroxyl group is lost from the carboxyl group on fatty acid O e. Hydroxyl group is lost from carbonyl group on glycerol and a hydrogen atom is lost from the hydroxyl group on fatty acid Type here to search Cop 近
- Which statement about the glycoprotein shown below is true? OH CH₂OH OH HN HN-C =0 CH3 H₂ Protein CH N-H Protein It contains a deoxyribose sugar that could be metabolized by human enzymes. O The monosaccharide is attached to the protein via nitrogen in a residue's a-amine. It contains a ribose sugar that could not be metabolized by human enzymes. The monosaccharide is attached to the protein via nitrogen in a residue's side chain.HO molecule E HO. (CH12 CH, OH NH, HO molecule F HO molecule D molecule C H,C-(CH),3 of H,C-(CH,) H,C-(CH molecule B H3C-(CHa)12 H,C-(CH) но molecule AWhich of the following lipid molecules possess a different fundamental structural make-up from the others? Fatty acids Sphingolipids O Cholesterol O Triglycerides O Glycolipids