Microbiology

What is the smallest pathogen?

• Virus
• Bacteria
• Fungus
• Tapeworm

Which was most likely classified as a pandemic?

• People in eleven states were sickened after eating beef contaminated with the E. Coli bacteria. The tainted beef was traced to a meat-packing plant.
• Two camps, in close proximity to each other, experienced an outbreak of cholera. The infection was traced to contaminated drinking water.
• A measles outbreak in Indiana was attributed to children whose parents did not have them vaccinated for measles.
• During 1918 to 1919, an estimated 20-40% of the world's population suffered from the Spanish flu.

The bacteria that causes Bubonic Plague is transmitted to humans by fleas. Which term best describes the role of the fleas in transmitting Bubonic Plague?

• Decomposer
• Pathogen
• Parasite
• Vector

A village has an outbreak of cholera. Which would be the easiest way for a neighboring village to prevent the cholera epidemic from spreading to their village?

• Develop a cholera vaccination.
• Quarantine all individuals infected with cholera.
• Avoid contaminated water, or treat contaminated water before drinking it.
• Restrict travel to other villages that are farther away.

Tags

NGSS.HS-ETS1-3

Which product would be most effective in preventing the spread of a cold virus?

• Hand soap
• Mouth Wash
• Cough Drops
• Antibiotic cream

What characteristic of viruses distinguishes them from cells?

• They do not have hereditary material (DNA).
• They are not separated from their environments.
• They lack an independent metabolism, so they need a host in order to reproduce.
• Their traits do not evolve in response to selection pressures.

Many diseases transmitted by vectors lead to the death of millions of people in the world. Which best explains why African countries are harder hit than other regions of the world?

• increased number of insects
• increased climatic variations
• increased ecosystem changes
• increased pressure from human activities

Tags

NGSS.HS-ESS3-1

Which best explains why doctors advise their patients to be vaccinated against the flu each year?

• The flu vaccine becomes more effective over time.
• The flu vaccine is developed to last for only two months.
• The flu vaccine given each year combines the fluvaccines given over the past five years.
• The flu vaccine is developed based on the virus identified as causing the particular strain of flu that year.

Which situation would most favor the spread of infectious disease?

• Overcrowding
• Use of vaccines
• Small populations
• Sanitary conditions

Which best describes the reproductive differences between bacterial infections and viral infections?

• Viruses multiply by asexual reproduction, while bacteria reproduce inside a host.
• Viruses multiply using a host, while bacteria are produced by way of binary fission.
• Viruses multiply by developing into endospores,while bacteria reproduce by way of binary fission.
• Viruses multiply by way of conjugation, while bacteria reproduce by developing into endospores.