Histidine Has PKₐ Values of 1

question 10

Multiple Choice

Histidine has pKₐ values of 1.8,6.0,and 9.2.At which of the following pH values would histidine be found with a net negative charge?

• A)1.0
• B)4.0
• C)8.0
• D)11.0

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Definitions:

Semiannual Payments

Payments made twice a year, often used in the context of bond interest payments or certain types of loans.

Compounded Semiannually

Interest calculation method where interest is added to the principal sum of a deposit or loan twice a year, resulting in interest earning interest.

Compounded Annually

A method of calculating interest where the interest earned each year is added to the principal, leading to an increase in the amount of interest earned in subsequent years.

Present Value

The current worth of a future sum of money or stream of cash flows given a specified rate of return, used in discounting and investment appraisal.