Disease/Biotech Test

What best explains how a virus infects its host?

• The virus must fuse with the cells of the host organisms.

• The virus must circulate the blood of the host organism.

• Viral nucleic acids must enter the cells of the host organism.

• Viral proteins must inactivate the proteins of the host organism.

Which is the BEST method for preventing a parasitic disease?

• Vaccination

• Wearing a mask

• Limiting physical contact with others

• Avoiding contaminated food and water

If a child scrapes his foot on a piece of rusty metal, it is important to get medical treatment because the ......

• metal is corrosive to the skin.

• Foot carries large amounts of bacteria.

• The foot is the most sensitive part of the body.

• Metal may be contaminated and cause infection.

A woman gets sick with Lyme Disease. Which was the most likely vector that infected her?

• A flea

• A deer tick

• A mosquito

• A cockroach

Which best compares a virus to a bacteria?

• A virus is a large, living particle and a bacteria is a large, living cell.

• A virus is a tiny, nonliving particle and a bacteria is a large, living cell.

• A virus is a large, nonliving particle, and a bacteria is the same size but is living.

Humans occasionally become infected with common colds and flu after flying on crowded airplanes. Which microscopic biological hazard is most likely responsible for making them sick?

• Air-borne contagions

• Food-borne bacteria

• Vector-borne parasites.

• Environmental mutagens.

Why is the prevention of epidemics usually easier than the prevention of a pandemic?

• The diseases in an epidemic are less severe than in a pandemic.

• Diseases causing pandemics are MORE contagious than a disease in an epidemic.

• Affected individuals in epidemics are usually more concentrated in one area than in pandemics.

Which sentence best describes a pandemic?

• The disease causes high fever and vomiting.

• The disease passes through direct contact with an infected person.

• The disease is fatal if not treated immediately.

• The disease has spread to many countries around the world.

Which would most likely aid in the prevention of an epidemic?

• Drinking lots of fluids

• Isolating infected individuals

• Researching about non-infectious diseases

• Taking antibiotics before the symptoms start.

Which has had the GREATEST impact on PREVENTING epidemics in the 21st century?

• Immunizations

• New medicines

• Closing airports around the world