The Purpose of the Invariant Chain (Ii,CD74)is to Block the Peptide-Binding

question 20

Multiple Choice

The purpose of the invariant chain (Ii,CD74) is to block the peptide-binding site of:

• A) antibody molecules
• B) class II molecules
• C) class I molecules
• D) T cell receptors

Understand and identify various defense mechanisms.

Describe the process and stages of dying.

Recognize effective therapeutic communication techniques.

Understand the concept of homeostasis and its significance in psychology.

---

Definitions:

Action Potential

A rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane, a process allowing neurons to transmit signals.

Membrane Potential

Voltage difference across a cell membrane.

Potassium

Potassium is a chemical element with the symbol K, necessary for the functioning of all living cells and vital for heart, muscle, and nerve functions.

Sympathetic Nervous

Part of the autonomic nervous system that prepares the body for action, often referred to as the "fight or flight" response system.