What Is the Isoelectric Point of Glutamic Acid (PK_a of α-CO₂H

question 15

Multiple Choice

What is the isoelectric point of glutamic acid (pK_a of α-CO₂H, 2.10; pK_a of β-CO₂H, 4.07; pH of α-NH₂, 9.47) ?

• A) 3.08
• B) 5.67
• C) 6.16
• D) 17.28

---

Definitions:

Hardware

Physical components and devices that constitute a computer system or network, such as processors, memory devices, and peripherals.

Mini Keyboard

A compact version of a standard keyboard, often with fewer keys, designed for portability or specific use cases.

Touch Screen

An electronic display that can detect and respond to touch gestures, allowing users to interact directly with what is displayed.

Smartphones

Mobile devices that combine features of a computer with those of a phone, often including internet access and the ability to run various applications.