Immune System Unit Test

What are the proteins produced by B cells that are designed to mark antigens to be destroyed?

• Antigens
• Active Immunity
• Antibodies
• Antibiotics

The part of foreign materials that cause a response from the immune system are called _____________________.

• Antigens
• Active Immunity
• Antibodies
• Antibiotics

What is the role of antibodies?

• Kills pathogens
• Helps activate other immune cells
• Produces antibodies
• Binds to antigens and neutralizes pathogen

Vaccines stimulate the body to produce...

• autoimmune diseases
• helper t-cells
• fever
• antibodies

Phagocytes help destroy pathogenic bacteria by

• causing mutations in the bacteria

• engulfing and digesting the bacteria

• producing toxins that compete with bacterial toxins

• inserting part of their DNA into the bacterial cells

If an individual is exposed to a pathogen that they have already been exposed to, the immune system responds by...

• Sending extra phagocytes to engulf and destroy the pathogen

• Making antibodies to fight the pathogen for the first time

• Memory cells make antibodies faster and in larger quantities

What is the correct order for the following statements:

A- B cells produce antibodies to neutralise the pathogen, as well as memory cells for long-term immunity

B- Phagocytes engulf the invading pathogen and present the antigen in their cell membrane

C- Antibodies neutralise the pathogen

D- Lymphocytes (T- cells) are activated, which in turn activates B- cells

E- Pathogen enters the body and antigens on the pathogen alert the phagocytes

• E, D, A, C, B

• E, B, D, A, C

• B, E, D, A, C

• D, E, C, B, A

Immunity that stay in the bone marrow to mature

• Lymphocytes

• Leukocytes

• B- Lymphocytes

• T-Lymphocytes

Creates antibodies

• T-Lymphocytes

• Lymphocytes

• B-Lymphocytes

• Leukocytes

Function is to destroy foreign substances

• Antigen

• B-Lymphocytes

• Antibodies

• T-Lymphocytes