Which of the following amino acid side chains CANNOT form hydrogen bond? O a. Gln O b. Tyr O C. O d. Asn e. Pro Thr
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- During the formation of the peptide bond which of the following takes place? Select one: a. Hydroxyl group is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid b. Hydrogen atom is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid c. Hydroxyl group is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid d. Hydrogen atom is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid Clear my choiceDuring the formation of the peptide bond which of the following takes place? A. Hydroxyl group is lost from its Carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid B. Hydrogen atom is lost from its Carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid C. Hydroxyl group is lost from its Carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid D. Hydrogen atom is lost from its Carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acidThe structure of the dipeptide Gly-Asn is given by . The structures of the amino acids Gly and Asn are given below. NH2 H. ČH2 H3N-C-CO H. H3N-C-CO H. Asn Gly NH2 CH2 H H H2 C COO 2. H3N-C -C H. 1. H&N C C-NH C COO NH, NH2 CH2 H. H2 C C NH2 3. H3N-C C- -C COO 4. 0OC-C NH3" Click Save and Submit to save and submit. Click Save All Ansuwers to save all answers. MacBook Air esc 吕0 DII DD F1 F2 F3 F4 F5 F6 F7 F8 F9 @ 2$ & 1 2 4 5 7 8 Q W E R Y | A S D F G K C V N M < CO # 3 HICH
- Denaturation of protein is a result of O A. cleavage of the peptide bond O B. formation of H-bond O c. breaking of H-bond D. none of these 17Below are two amino acids at physiological pH. Number labels are for part c. Answer the following questions about the side chains of these amino acids. H C. H;N* 2 CH2 A H H3N* C 3 CH2 В 4он В a. Which amino acid has a polar side chain? b. Which amino acid is more soluble in water? B c. Select the atom that serves as the hydrogen bond donor in the amino acid's R group.Which of the following shows the reaction by which valine and leucine form a peptide bond H. H. H O -COO H2N-C-C-NH- C- C-OH + HO CH2 CH,SH ČH3 А. C. CH(CH)2 H. HN-C-C-NH-C- C-OH H,N-CH-C- + H,O HC-C-H CH2 CH2 H CH3 CH H,C-C-H CH(CH3)2 CH В. D.
- Which of these amino acids is a hydrophobic amino acid? (Select all that apply, if necessary.) A. B. C. D. E. iº H₂N-CH-C CH₂ T CH₂ CH₂ NH C=NH2 NH₂ amino acid E amino acid D amino acid B amino acid C amino acid A 200 H₂N-CH-C CH₂ C=O I OO H₂N-CH-C- CH₂ CH₂ T C=O T NH₂ 0 H₂N-CH- CH₂ CH-CH3 CH3 H₂N-CH-C CH₂ I OH -0The side chain of which of the following amino acids is most hydrophilic a. Phe b. Val c. Leu d. Cys e. AlaWhich of the following most directly applies to the formation of the secondary structures of proteins? A B с D formation of ionic bonds between the R groups of two polypeptides formation of nonpolar interactions between two R groups on the same polypeptide formation of covalent bonds via dehydration reactions between two amino acids formation of hydrogen bonds between between amino and carboxyl groups
- +H₂N-CH-COO™ 1 CH₂ I CH₂ I CH₂ I +H₂N-CH₂ A. amino acid C amino acid B +H₂N-CH-COO™ O amino acid A O amino acid E O amino acid D ___ C=0 B. +H₂N-CH-COO™ CH₂ T OH C. This amino acid participates in hydrogen bonds to stabilize tertiary structure. +H₂N-CH-COO™ CH H₂C CH3 D.Which of the following is achiral amino acid coo cooe H,N-C-H CH3 H,N-C-H HO ÇH, OH CH3 но H. HN- NH2 NH2 E D O A C O E овIndicate the level(s) of protein structure to which each of thefollowing contributes:a. amino acid sequenceb. b-pleated sheetc. hydrogen bondd. disulfide bond