Unit 05 Pathogen/Biotechnology

Chicken pox is an extremely contagious viral disease. Which organ is most frequently affected by chicken pox?

• Brain

• Intestines

• Lungs

• Skin

Why are diseases transmitted through the bites of infected animals not considered contagious diseases?

• The infected animals do not show symptoms.

• The person in direct contact is the only one infected.

• Humans do not become sick from animal diseases.

• Humans do not become sick from animal diseases.

Which pair correctly matches a vector and the infectious disease it carries? A. human – influenza B. chicken – rabies C. mosquito – malaria D. flea – Lyme disease

• human – influenza

• chicken – rabies

• mosquito – malaria

• flea – Lyme disease

What is most unique about the bacteria E. coli?

• It is a bacteria that causes illness in humans.

• It is a bacteria that has caused outbreaks through contaminated food.

• It is harmless in animals’ intestines, but causes illness if ingested outside of that organ.

Over a two-week period, several students complain of feeling sick. Their symptoms include a cough, fever, and a sore throat. What describes the MOST likely cause of these symptoms?

• exposure to hot weather

• decrease in physical exercise

• consumption of bad food

• infection by a virus

Which is the best method for preventing a parasitic disease?

• vaccination

• wearing a mask

• limiting physical contact with others

• avoiding contaminated food and water

Which set of diseases do viruses cause?

• malaria, influenza, HIV

• herpes, smallpox, bubonic plague

• influenza, HIV, smallpox

• bubonic plague, malaria, herpes

Plasmodium is a protozoan that carries malaria. Which organism is known to carry this protozoan?

• mosquito

• flea

• tick

Which best compares bacteria and viruses?

• Bacteria are smaller than viruses.

• Bacteria cause disease, but viruses do not.

• Bacteria are living organisms, but viruses are not.

• Bacteria have genetic material, but viruses do not.

Under which condition is a person most likely to contract E. coli poisoning?

• eating burned food

• drinking bottled water

• eating undercooked beef

• eating undercooked vegetables