Microorganism and Infectious Agents

Flashcards covering various concepts related to microorganisms and infectious agents.

What type of infectious agent causes Bovine spongiform encephalopathy, scrapie, and Creutzfeldt-Jakob Disease?

Prions.

What type of microorganism do pinworms and tapeworms belong to?

Helminths.

What do we call organisms that spread infectious microorganisms by feeding on the blood or tissue fluids of hosts?

Vectors.

Which of the following is not spread by arthropods?

Kuru.

Amoeba, paramecium, and Cryptosporidium are examples of what type of microorganism?

Protozoa.

What surrounds the genome in a virus particle?

Protein coat.

Who established the first vaccines by using material from cowpox pustules?

Edward Jenner.

Who discovered the first antibiotic, penicillin?

Alexander Fleming.

Which of the following is not one of the three domains in current taxonomy?

Prokarya.

In the taxonomic system, in which rank are organisms most closely related?

Genus.

What is the best definition of spontaneous generation?

Nonliving matter gives rise to living organisms.

If an organism is unicellular and has a nucleus but lacks a cell wall, what type of organism is it?

Protozoa.

What was the purpose of Louis Pasteur's experiments with unbroken S-shaped flasks?

Allowed air to flow into the flask.

What did Ignaz Semmelweis advocate for to prevent infections?

Handwashing.

What type of organisms are bacteria classified as?

Unicellular.