Which of the following is true about zwitterions? They are positively charged. T

Question

Which of the following is true about zwitterions? They are positively charged. They are negatively charged. They are electrically neutral. The charge depends on the zwitterion. Which of the following is true of the isoelectric point (pl) of amino acids? The isoelectric points of all amino acids are the same. It is the pH at which an amino acid conducts electricity. It Is the pH at which an amino acid has equal numbers of positive and negative charges. All of the above Which of the following is true of an amino acid at a pH below its isoelectric point (PD? It will have a negative charge. It will be electrically neutral. It will have a positive charge. we cannot predict its charge. Which of the following is a type of secondary structure? both A and B neither A nor B How many protein chains make up hemoglobin? 1 2 3 4 Which of the following denaturing agents affects disulfide bonds? detergents heat heavy metals urea 74. Which level of protein structure

Explanation / Answer

68)
They have equal number of positive and negative charge
they are considered electrically neutral
Answer: C

69)
at isoelectric point, ions have equal amount of positive and negative charge
Answer: C

70)
At less pH, -NH2 group is protonated to -NH3+.
So it will have positive charge
Answer: C

I am allowed to answer only 1 question at a time

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

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