What types of bonds form the primary structure of nucleic acids? 0 hydrophobic peptide hydrogen bonds Covalent glycosidic and phosphoester ionic
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- Below is the structure of glycine. Draw a tripeptide composed exclusively of glycine. Label the N-terminus and C-terminus. Draw a box around the peptide bonds.Which covalent bond forms when a fatty acid is attached to the following molecule by dehydration synthesis: CH2(OH)-CH(OH)-CH2(OH)? a peptide bond a phosphodiester bond an ester bond a glycosidic bond an ether bondDisulfide bond stabilizes what level of protein structure?
- H онн C-C-N -C C-N OH +H20 HH H. H N- C-N-C-C OH OH H. R R The chemical reaction illustrated in the accompanying figure H H C-N-C-C OH N- -C OH R R The chemical reaction illustrated in the accompanying figure O links two monomers to form a polymer separates two phospholipids in a bilayer breaks a peptide bond is a hydrolysis reaction in a polysaccharide A piece of DNA has the following sequence: 5' TCATGG 3'. What would be the sequence of the complementary strand? O 3'AGTACC 5' O S' AGTACC 3 O3 CCATGA 5 O s CCATGA 3 Refer to the accompanying figure. RNA at the beginning of the strands are shaded in lighter color. Identify th leading strand in this figure! O a O b HICIRSphingolipids are considered as phospholipids if: O The polar head group contains a single sugar (carbohydrate) such as glucose All sphingolipids are phospholipids O The polar head group contains a phosphate group The polar head group contains a complex sugar (carbohydrate) containg sialic acidWhich is responsible for the stabilization of parallel polypeptide chains in a beta-pleated sheet conformation? Van der Waals O covalent bonding O R-group interactions H-bonding
- The bond linking monomers of both DNA and RNA is more appropriately called 3'-5' phosphodiester bond 5'-3' phosphodiester bond phosphate ester bond N-C glycosidic bondThe functions of biomolecules in cells and organisms are enabled by their specific chemical properties. Many biological macromolecules are polymers comprised of monomer molecules held together by specific types of bonds. Give the names of the corresponding monomer and type of bond that constitute the following polymeric macromolecules. Polymer Monomer BondNucleic AcidPolysaccharideProteinA polypeptide with a net positive charge at physiologic pH (~7.4) most likely contains amino acids with R groups of what type? Aliphatic R groups Basic R groups O Aromatic R groups O Acidic R groups
- Which of the following types of bonds are present in the primary structures of proteins? Covalent bonds, hydrogen bonds and dislufide linkages Ionic interactions Hydrogen bonds and covalent bonds Covalent bondMolecule Amino Acid (Glycine R=H) Glycerol a-glucose Molecular Formula Variable C2H5NO2 Structural Formula H CH₂ H H H I I H-C-C I I I H H H H I H I H H L H I H H CH3 0 N-H-- H H Ite H OH H H H H I CWhich of these functional groups is involved in the building of a nucleic acid polymer from a nucleotide monomer? O carboxyl O saturated hydrocarbon O phosphate O carbohydrates
