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Concept explainers
Interpretation:
Amino acid that is hydrophilic has to be identified and explained.
Concept introduction:
Many amino acids are linked together through amide bonds to form a biologically large molecule known to be proteins.
Amino acid had both amino
Amino functional group is
The amino acids that are neutral are further classified into polar and non-polar.
The side chain are classified into hydrophobic (water hating) and hydrophilic (water loving).
Hydrophilic (water-loving):
The compound has the polar group such as hydroxyl group (
Hydrophobic (water-fearing):
The compound has non polar group such as alkyl chain and benzene ring is called as hydrophilic.
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Chapter 18 Solutions
EBK FUNDAMENTALS OF GENERAL, ORGANIC, A
- Name and draw the structures of the amino acids that fit the following descriptions:(a) Contains a thiol group (b) Contains a phenol grouparrow_forwardWhich amino acid is technically not an amino acid? Whichamino acid contains no chiral carbon atoms?arrow_forwardName and draw the structures of the amino acids that fit the following descriptions:(a) Contains an isopropyl group(b) Contains a secondary alcohol grouparrow_forward
- If an oligosaccharide is attached to a protein via an O-glycosidic linkage which amino acid residue(s) are likely to be involved? O Glutamine O Serine O Histidine O Threonine O Both (b) and (d)arrow_forwardWhat amino acid is technically not an amino acid and which amino acid contains no chiral carbon atoms?arrow_forwardWhich functional group(s) shown above is (are) present in all amino acids?arrow_forward
- What amino acids do the following abbreviations stand for? Draw the structure of each.(a) Ile (b) Thr (c) Glnarrow_forwardAt neutral pH, which of the following amino acids has a net positive charge, which has a net negative charge, and which is neutral? (Hint: Draw the various charged forms of each amino acid before deciding.)(a) Aspartic acid (b) Histidine (c) Valinearrow_forwardThis amino acid is: (Note that the non-ionized form is shown; remember that backbone groups are irrelevant to classification) a) Polarized (+) charged b) Nonpolar c) Polar and (-) charged d) Polar unchargedarrow_forward
- In each of the following pairs of amino acids, identify which amino acid would be more soluble in water: (a) Ala, Leu; (b) Tyr, Phe; (c) Ser, Ala; (d) Trp, Hisarrow_forwardHow many chiral carbons are present in this amino acid (aqueous form)? (Identify the following amino acid (at pH = 7.0): (COO-)–CH(NH3+)–CH2–CH2–CH2–CH2–(NH3+)) zero chiral carbons one chiral carbon two chiral carbons three chiral carbons four chiral carbonsarrow_forwardThe structures of three amino acids are given as below. Glycine -H Cysteine - CH2 - SH Glutamate - CH2 CH2 (i) Describe the properties of each of these amino acids. (ii) Draw the tripeptide Glu-Cys-Gly.arrow_forward
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