QUESTION 7 0.5 points Save Answer What would have to be true if a cysteine resid

Question

QUESTION 7 0.5 points Save Answer What would have to be true if a cysteine residue is known to act as a general base catalyst at pH 7.4? The kcat for the enzyme with its substrate will be higher at 5.0 than it would for 7.4. The cysteine side chain pKa should be lower than that observed for free cysteine The Km for the substrate is lower at pH 5.9 that it would be observed at 7.4. None of the answers are correct. Santa Claus is a heavy smoker. QUESTION 8 0.5 points Save Answer Transport proteins are compared to enzymes. Which of the following is not a reason for this comparison? Both transporters and enzymes reach a maximum rate when the ligand binding sites are saturated Similar to catalysis done by enzymes, transporters "catalyze" the transport of molecules by lowering the activation energy of transport. Both can form a complex between the protein (enzyme or transporter) and the substrate (reactant or compound being transported). Both can undergo conformational changes in response to ligand binding. All of these statements are correct.

Explanation / Answer

Question No. 7

True statement is :

Cysteine side chain pKa should be lower than that observed for free cysteine.

Question No. 8

Transport proteins are enzymes:

Thus, all of statements given are correct.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.