Immune System

Thee large green structure with the antigen on its surface is a (an)

• antibody

• pathogen

• enzyme

• hormone

​ (a)   ​ ​produce ​ ​ (b)   and ​ (c)   engulf ​ (d)  

• lymphocytes
• antibodies
• phagocytes
• pathogens

Tags

NGSS.MS-LS1-3

Match the following terms that mean the same things.

• foreign invader

• antibiotic

• eat

• antibody

• chemical marker

• pathogen

• Y-shaped protein

• antigen

• medicine

• engulf

Reorder the following steps in a human's immune response.

• Barriers such as skin and cilia.

• Destruction of foreign invader (pathogen).

• Swelling at the site of infection.

• Antibody creation by white blood cells.

Antibody creation is ​ (a)   to the antigen.

Phagocytes attacking foreign invaders are a​ (b)   ​response.

• very specific
• non-specific
• not affected by
• not related
• feedback

Match the following images with their descriptions.

• Phagocyte engulfing a pathogen.

• 
• An antibody's binding site must match shape of antigen.

• 
• This pathogen has 2 different antigens on its surface.

• 
• Only antibody A will bind to the antigens on this pathogen.

• 
• This is made from a weakened form of a pathogen.

• 

Which structure is made by the human immune system to fight a pathogen?

• 1--the antibody

• 2--the antigen

• 3--the pathogen

Organ transplants will cause an immune response in the body because...

• red blood cells will be prevented from carrying oxygen.

• antibiotics will be produced that cause blood clotting.

• white blood cells will react to the foreign antigens on the organ.

• the organ prevents antibodies from being made.

Match the following terms with their explanations.

• substance that protects against disease

• pathogen

• chemical markers on pathogens

• antibody

• any living organism that can cause disease

• antigens

• made by white blood cells to fight pathogens

• vaccine

• important cells in our immune system

• white blood cells

Which of the following is FALSE about antibodies?

• They are Y-shaped proteins.

• They are made by the immune system.

• They can attack any antigen that enters the body.

• They remain in the bloodstream for a long time after they are produced.