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- What is the structure of micelles? The polar head groups of proteins are inside the micelle and the carbon chains are outside. O Globular structure formed by small proteins in aqueous solution. The polar head groups of fatty acids are outside the micelle and the carbon chains are inside. Phospholipids are inside and cholesterol is outside of the micelle. Bile salts are inside the micelle and the carbon chains are enclosed outside.Which of statement/s is/are true? Palmitoleic and oleic acids are unsaturated fatty acids Stearic and Linoleic acids are an 18 carbon fatty acid chain Linoleic and lauric acids are saturated fatty acids Palmitic and palmitoleic acids are polyunsaturated fatty acids A) All statements are correct B) Statement 1 and 2 are both correct C) Statement 3 and 4 are both correct D) All statements are incorrect Which statement is correct? A) Animal triacylglycerols are liquids while vegetable triacylglycerols are solid at ambient temperatures. B) Animal fats contain more unsaturated fatty acid units than saturated fatty acids. C) Melting points of animal fats are lower than the melting points of vegetable oils. D) Vegetable oils contain more unsaturated fatty acids units than saturated fatty acids. What makes lipids/fats hydrophobic? A) their long carbon skeleton B) the carboxyl group at one end of the molecule C) the glycerol moiety D) presence of relatively…Which of the following statements is true regarding the classification of amino acids? Group of answer choices The side chain of a polar basic amino acid contains hydroxyl groups The side chain of a polar acid amino acid contains carboxyl groups The side chain of the non-polar amino acid can exhibit H-bonding. The side chain of a polar amino acid contains hydrocarbon groups only
- Represent below 1-stearyl, 2-linoleyl phosphatidyl- choline. To which family of lipids does this molecule belong? What is its global charge? Circle its hydrophilic and hydrophobic parts. Stearic acid: C18:0; linoleic acid: C18:2 (A9,12) cisWhich of the following might be a feature(s) of a lipid that has been converted from a fully saturated fatty acid to a fatty acid containing several trans double bonds? Select all that apply. The trans fatty acid will now have a higher melting temperature compared to the fully saturated precursor The trans fatty acid will be able to pack more closely with saturated fatty acids, than with unsaturated fatty acids containing cis double bonds The trans fatty acid will now have a lower melting temperature compared to the fully saturated precursor The trans fatty acid will be able to pack most closely with unsaturated fatty acids containing cis double bonds, than with saturated fatty acidsFigure 2.17 Fatty acids. Double bonds in the tails are highlighted in red. A. The tail of stearic acid is fully saturated with hydrogen atoms. B. Linoleic acid, with two double bonds, is unsaturated. The first double bond occurs at the sixth carbon from the end of the tail, so linoleic acid is called an omega-6 fatty acid. Omega-6 and C. omega-3 fatty acids are essential fatty acids, which means your body does not make them and they must come from food. D. The hydrogen atoms around the double bond in oleic acid are on the same side of the tail. Most other naturally occurring unsaturated fatty acids have these cis bonds. E. Hydrogenation creates abundant trans bonds, with hydrogen atoms on opposite sides of the tail. Figure It Out: Are the double bonds in linolenic acid cis or trans?
- Which of the following statements differentiates structurally albumin (a globular protein) structurally with that of collagen (fibrous protein)? O Peptide bonds in collagen are rigid and fixed, while the peptide bonds in albumin can freely rotate O Collagen possess an elongated shape while albumin resemble a spherical shape The amino acids in albumin are in the L-form while the amino acids in collagen are in the D-form Albumin possess less diverse set of amino acids while collagen can contain a variety of amino acid typesThe molecular structure shown here represents which lipid component? monounsaturated fatty acid 18. H2C CCH2 H2C CH2 H2C CCH2 H2C3 saturated fatty acid simple lipid d) trans fatty acid polyunsaturated fatty -H acid H- H2C3 CCH2 H2C. CCH2 H2C CCH2 * H¿C CH3Which of the following about the glycosylation of proteins in the ER is false? Dolichol phosphate serves as a lipid carrier. Oligosaccaryltransferase add the oligosaccharide to the protein. The oligosaccharide ‘tree’ is made up of glucose and mannose. Asn-X-Ser/Thr serves as the glycosylation site on the protein. Carbohydrates are added to the lipid carrier by glycosyltransferases.
- All of the following pairs are well-match, except one: O Oleic fatty acid is : unsaturated fatty acids O Saturated fatty acids : solid at room tempreture Ceramide : simplest glycerolipid O TGs: stored in adipose tissueWhich 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.A patient visits a doctor because the patient is having difficulty metabolizing fats. What vitamin supplement might a physician recommend to help with this disorder? O Pantothenic acid O Biotin O Riboflavin O Niacin Question 6 1 By interfering with the neurotransmitter receptor of caffeine reduces drowsiness. O adenosine O serotonin O dopamine O glutamate O sodium Question 7 Which of the following is the correct sequence of events in cellular respiration? O Citric acid cycle → electron transport → glycolysis → preparatory reaction O Glycolysis → preparatory reaction → citric acid cycle → electron transport chain O Glycolysis → electron transport chain → preparatory reaction O Glycolysis > citric acid cycle → eleGron franspoi chain.