My dear No answer from chat gpt will dislike. Which four statements about amino acids are true?The form of glycine used by the human body is D-glycine.பProline has an overall charge at physiological pH (7.4).The Leu side chain does not form hydrogen bonds with other amino acids.Lysine has one stereocenter (chiral center).Phe can undergo oxidation to form Tyr.Gln and Asn are polar amino acids.Methionine is a thiol.

Amino acids are organic compounds that serve as the building blocks of proteins. They have a…

Answered: Which four statements about amino acids…

Ebk:Nutrition & Diet Therapy

10th Edition

ISBN:9780357391747

Author:DEBRUYNE

Publisher:DEBRUYNE

Chapter5: Protein

Section: Chapter Questions

Problem 4SC

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Figure 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 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
Which of the following statements is true about amino acids? a. All twenty (20) of these protein-derived amino acids are a-amino acids, meaning that the amino group is located on the carbon alpha to the carboxyl group. b. For nineteen (19) of the twenty (20) amino acids, the a-amino group is primary. Glycine is different; its a-amino group is secondary. c. With the exception of proline, the a-carbon of each amino acid is a chiral center. As shown in Table 27.1, all 19 chiral amino acids have the same relative d. Both a & c
Which of the following statements about amino acids is true? A. Twenty two amino acids are commonly found in proteins. B. Amino acids are often linked together to form branched polymers. C. All amino acids contain an NH2 and a COOH group. D. Most of the amino acids used in protein biosynthesis have charged side chains.
Which of the following combination is are non-essential amino acids? A. Leucine and Isoleucine B. Isoleucine and Methionine C. Methionine and Asparagine D. Proline and Alanine
The two amino acids that contain sulfur atoms are ___. A. Cysteine and threonine B. Methionine and cysteine C. Threonine and serine D. Methionine and serine E. Cysteine and serine
A triglyceride consists of (a) glycerol plus three fatty acids, (b) a sugar-phosphate backbone to which two amino groups are attached, (c) two to several hexoses, (d) amino acids that have been thoroughly saturated with hydrogen.
Which of the following is not a characteristic of carbohydrates?. Provide a major source of fuel for the body Contain more kcalories than protein Add sweetness to food Supply 4 kcalories per gram
Classify the standard amino acids according to the categories listed below. Some of the amino acids may be classified in more than one category. Several amino acids may be classified in the same category. Identify amino acids with the following descriptions for their structures or for their side chains. Aromatic, saturated hydrocarbons, acidic, basic, primary alcohol, secondary alcohol, phenol, amide, primary amine, hydrophobic, polar uncharged, polar charged, imino, achiral, thioalcohol, imidazole, indole, benzyl, carboxylate, thioether, negatively charged at physiological pH, positively charged at physiological pH, aliphatic, guanidinyl, cyclic
Which of the following pairs of amino acids can form hydrogen bonds between their side-chain groups? Draw the pairs that can hydrogen bond through their side chains and indicate the hydrogen bonds.(a) Phe, Thr (b) Asn, Ser (c) Thr, Tyr (d) Gly, Trp
What two products can be generated from the transamination of an amino acid? a. a carbon skeleton and the amino acid glutamate b. ketone bodies and glycerol c. palmitic acid and fatty acids d. fatty acids and glycerol
73. which of the following atoms or groups are not found in an amino acid? carboxyl groups (-COOH) R group amino group (-NH2) Central carbon Hydroxyl groups(-OH) 74. which of the following characteristics unifies all molecules that are considered to be lipids? they all have affinity for water due to the presence of carbonyl groups they all have little to no affinity for water due to the presence of hydrocarbons they all have little to no affinity for water due to the presence of carbonyl groups they all have affinity for water due to the presence of hydrocarbons

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