Question 1 Shown below are the structures of three amino acids NH NH, OH H-C-CH CH H-C-CH OH Phenylalanine Threonine (Phe) ( yr) Using the blanks below, rank these three in order of the hydrophobicity of their side chaIns b)工 ntermediate Leas↑ Hydrophobic d)Explain why(a) is more hydrophobic than(b) e)Explain why(b) is more hydrophobic than(c) Question 2 Shown below is a close up of a substrate(UDP-Glucose) bound to the active site of an enzyme (UTase). The shaded area is the enzyme; the structure of the substrate is shown. CHOH Ser161 NH2 HH CH2 OH H OH OH (Arg 31 Two amino acids of the enzyme are highlighted: Arg 31 and Ser 161.2 Question 1 Shown below are the structures of three amino acids. NH3 C C H O O CH OH CH3 NH3 C CH2 C H O O OH Threonine (Thr) Phenylalanine (Phe) Tyrosine (Tyr) NH3 C CH2 C H O O Using the blanks below, rank these three in order of the hydrophobicity of their side chains. a) Most Hydrophobic b) Intermediate c) Least Hydrophobic d) Explain why (a) is more hydrophobic than (b). e) Explain why (b) is more hydrophobic than (c). Question 2 Shown below is a close up of a substrate (UDP-Glucose) bound to the active site of an enzyme (UTase). The shaded area is the enzyme; the structure of the substrate is shown. N N H OH OH H H O H CH2 O O O P O O O P H CH2OH OH H OH H O H OH H O H NH2 O H Ser161 Arg 31 Two amino acids of the enzyme are highlighted: Arg 31 and Ser 161