Multiple Choice
Approximately what percentage of dietary protein consumed is absorbed by the human digestive system?
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3. Amino Acids
Amino Acids and Henderson-Hasselbalch
Back3. Amino Acids
Amino Acids and Henderson-Hasselbalch
- Multiple ChoiceWhen protein is consumed in excess of the body's physiological needs, what is the primary fate of the surplus amino acids?21views
- Multiple ChoiceWhich of the following represents the balanced equation for the nonproductive reaction of lysine in the context of the Henderson-Hasselbalch equation, where lysine acts as a substrate and does not undergo enzymatic transformation?29views
- Multiple ChoiceWhich of the following is important for enforcing the specificity of protein synthesis?50views
- Multiple ChoiceWhat is the name of the sugar alcohol produced when D-ribose is reduced?63views
- Multiple Choice
At pH 11.8, what is the % of protonated amino group in the R-group of Lysine. (Lysine's pKR = 10.8)?
555views4rank2comments - Multiple Choice
Draw Glu & calculate the % of -COOH in the R-group of Glu at pH 3.2. (Glu pK R = 4.1).
320views - Multiple Choice
Draw Asp & calculate the pH at which two thirds (2/3) of Asp's R-group is dissociated. (Asp pKR = 3.9).
354views1rank1comments - Multiple Choice
Draw Arg & calculate the pH at which 23% of Arg's R-group is dissociated. (Arg pK R = 12.5).
377views2rank - Open Question
What is the ratio of [conjugate base] to [conjugate acid] for each of Histidine's three ionizable groups at pH 7?
A) Amino group ratio: ________________
B) Carboxyl group ratio: ________________
C) R-group ratio: ________________
D) Use the ratios above to determine the average net charge of the ionizable groups & the entire His molecule.
1. Net charge of Amino groups: ____________
2. Net charge of Carboxyl groups: ____________
3. Net charge of R-groups: ____________
4. Net charge of His: ____________ (Hint: sum previous 3 charges).
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