Pathogens

Sabrina has the flu. Her neighbor suggests she get a prescription for an antibiotic, but Sabrina's mothers says that antibiotics would not help in this situation. Why?

• the flu is caused by a virus, and it cannot be treated with an antibiotic.

• the flu is caused by a fungus, and it must be treated with antifungal medication

• the flu is caused by a parasitic worm, and must be treated with an anti-parasitic medication

• the flu is caused by a bacterium, and it cannot be treated with an antibiotic.

Ten people became sick with the flu after attending a school dance. What is the scenario that could best explain how the people got sick?

• contact with environmental sources

• contact with an infected animal

• contact with a contaminated object

• contact with an infected person

Antibody

• Protein released by lymphocytes that immobilises pathogens

• Chemical released by lymphocytes that neutralises toxins

• Chemical marker on the surface of cells

• Type of medicine prescribe for bacterial infections

Phagocytes

• Type of white blood cell that engulfs and digests pathogens

• Type of white blood cell that produces antibodies and antitoxins

• Type of red blood cell that fights infections

• Macrophages, neutraphils, eosinophils and basophils

Antigen

• Protein released by lymphocytes that immobilises pathogens

• Chemical released by lymphocytes that neutralises toxins

• Chemical marker on the surface of cells

• Type of medicine prescribe for bacterial infections

Antitoxin

• Protein released by lymphocytes that immobilises pathogens

• Chemical released by lymphocytes that neutralises toxins

• Chemical marker on the surface of cells

• Type of medicine prescribe for bacterial infections

Pathogen

• A type of micro-organism that invades the body

• A type of micro-organism that can only survive within the body

• A type of micro-organism that causes no harm

• A type of micro-organism that causes a diseases

Vector

• An organism that transfers a pathogen from one organism to another

• Insects

• An organism that causes a communicable disease

Infection

• Bacterial growth

• Presence of micro-organism on or in the body

• Culture of micro-organisms in or on the body

• Invasion and growth of micro-organisms inside/ on the body that cause communicable disease

Lymphocytes

• Type of white blood cell that engulfs and digests pathogens

• Type of white blood cell that produces antibodies and antitoxins

• Type of red blood cell that fights infections

• Macrophages, neutraphils, eosinophils and basophils

Tags

NGSS.MS-LS1-3