Disease-causing microorganism, such as a bacterium or virus.

• pathogen

• allergen

• prion

• antigen

Tags

NGSS.MS-LS2-1

What is the body's first line of defense against infection by foreign organisms?

• antibodies

• lymph nodes

• white blood cells

• the skin

What do antibodies attach to on the pathogen?

• Anti inflammatory

• Antigens

• Antiseptic

• Antibodies

What is the term for a strong response to a harmless antigen in the environment?

• An allergy

• Cell-mediated immunity

• An autoimmune disease

• Inflammatory response

An immune response that occurs in the human body is shown above. This activity helps to do which of the following?

• Produce antibiotics to control disease

• Provide protection against a specific pathogen

• Provide protection against all types of pathogens

• Eliminate harmful gene alterations

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

• antibody

• pathogen

• enzyme

• hormone

Match the following terms that mean the same things.

• medicine

• pathogen

• eat

• antibiotic

• chemical marker

• engulf

• foreign invader

• antibody

• Y-shaped protein

• antigen

Match the following terms with their explanations.

• made by white blood cells to fight pathogens

• antigens

• important cells in our immune system

• pathogen

• substance that protects against disease

• antibody

• chemical markers on pathogens

• white blood cells

• any living organism that can cause disease

• vaccine

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.

Tags

NGSS.MS-LS1-3

What is the name of the process where white blood cells surround, engulf and digest pathogens?

• protein synthesis

• photosynthesis

• vaccination

• phagocytosis