Pathogens/Biotech Online Learning

A city has an outbreak of a disease that affects an unusually large portion of its population at the same time. Which term BEST describes the outbreak?

• pandemic
• plague
• epidemic
• infection

In 1918, an outbreak of influenza infected 500,000 people all over the world. Tens of millions of those infected died. In 1994, an outbreak of pneumonic plague spread quickly through the city of Surat in India, killing 52 people.
Which statement BEST describes the two events?

• Both outbreaks were pandemics.
• Both outbreaks were epidemics.
• The influenza outbreak was a pandemic. The plague outbreak was an epidemic.
• The influenza outbreak was an epidemic. The plague outbreak was a pandemic.

How are quarantines used to slow the spread of an epidemic?

• Quarantines prevent individuals from eating food that is potentially contaminated.
• Quarantines allow enough time for antibiotics to take effect in infected individuals.
• Quarantines keep infected individuals separate so they cannot pass the disease to others.
• Quarantines keep people inside their homes so that family members can provide care for each other.

The term “pathogen” refers to:

• A disease process

• An organism or virus that causes disease

• A toxin produced by a bacterium that causes disease

• A toxin produced by a virus that causes disease

Viral structure can best be described as:

• A clump of DNA surrounded by a protein coat.

• A clump of RNA surrounded by a protein coat

• A clump of DNA or RNA surrounded by a lipid coat.

• A clump of DNA or RNA surrounded by a protein coat.

Prokaryotes are single-celled organisms that lack a

• cell wall.

• definite shape.

• cell membrane.

• nucleus.

Humans use bacteria in all of the following ways EXCEPT to

• clean up small oil spills.

• make butter and milk.

• mine minerals from the ground.

• synthesize drugs.

What can a vaccine do when it is injected into the body?

• prompt the body to produce immunity to a disease

• produce toxins that disrupt bacterial equilibrium

• use bacterial cells for food

• destroy new pathogens as they arise in the body

Viruses are considered to be non-living pathogens for which reason?

• their lack of metabolic processes

• their extremely small size

• their unique type of cells

• their ability to synthesize only some of their own components

Vector borne disease can transmit the following diseases.

• Chicken pox, Measles and Mumps

• Whooping cough, Tetanus and German measles

• Malaria, Rabies, Lyme Disease and Typhus

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