Birds that dive underwater, in order to feed (e.g., loons, ducks, penguins), hav
ID: 194862 • Letter: B
Question
Birds that dive underwater, in order to feed (e.g., loons, ducks, penguins), have contents of myoglobin in skeletal muscle ___________ contents of myoglobin in non-diving birds.
22. The enzyme, hexokinase (HK) is being compared for two strains of bacteria, strain 4630A and 4630B. Strain 4630A has a Michaelis-Menten plot that is significantly shifted to the left compared with the Michaelis-Menten plot for stain 4630B. Assuming that the Vmax’s for both strains are equivalent, stain 4630A will have ___________ enzyme velocity at physiological concentrations (i.e., sub-saturating) of glucose compared with strain 4630B.
23. An increase in the expression of the gene for the beta (b) subunit of hemoglobin in newborns should ______ the hemoglobin’s affinity for 2,3-BPG.
24. An increase in pH will ____ the P50 of myoglobin.
25. The formation of carbamates (carbamino compounds) on the N-termini of hemoglobin subunits will _____ the P50 of hemoglobin.
26. At physiological pH, the amino acid glycine will have a ___________ dipole moment () than the oligopeptide Met-Tryp-Ala-Ile-Pro.
27. A carbon atom and a hydrogen atom are brought in closer proximity than their van der Waals contact distance. This will _________the attraction between these two atoms compared with the attraction at atoms’ van der Waals contact distance.
28. Increasing the pH in a solution of aspartic acid will _________ the ratio of [aspartate]/[aspartic acid].
Increase/Decrease/No Change. Answer in the space provided: éfor “increase” or “greater than” , êfor “decrease” or “less than”, and = for "no change" or “no difference” or “not affect”
29. Making the G of an enzyme-catalyzed reaction more negative will ______ the rate of the reaction.
30. Conformational entropy (S) _________ when a protein folds.
Explanation / Answer
Ans22. Greater
Ans23. Increase
Ans24. Increase
Ans25. Increase(as now more oxygen would be required to saturate 50% of haemoglobin)
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