Infection and Disease: Host-Microbe Relationship and Stages of Infection

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What is the term for a systemic infection caused by the multiplication of pathogens in the blood?

Septicemia (correct)

Bacteremia

Viremia

Toxemia

Which type of infection appears rapidly with severe symptoms and then vanishes rapidly?

Primary infection

Acute infection (correct)

Chronic infection

Subclinical infection

What is the term for the presence of toxins in the blood?

Viremia

Septicemia

Toxemia (correct)

Bacteremia

In Koch's postulates, what must happen to the pathogen from the pure culture?

It must cause disease in a healthy host Signup and view all the answers

What type of infection usually has less severe symptoms but persists for long periods of time?

Chronic infection Signup and view all the answers

Which term refers to the presence of viruses in the blood?

Viremia Signup and view all the answers

What type of forces or interactions are involved in nonspecific adhesion?

Atomic and molecular vibrations Signup and view all the answers

How is specific adhesion characterized?

Lock-and-key interaction between complementary molecules Signup and view all the answers

Where do human pathogens usually colonize?

Digestive tract Signup and view all the answers

What process may be aided by invasins produced by pathogens?

Breakdown of host cell membrane Signup and view all the answers

How do pathogens evade host defense mechanisms?

Stimulate phagocytic engulfment Signup and view all the answers

Which type of attraction is involved in nonspecific adhesion?

Brownian movement Signup and view all the answers

What is the main difference between mutualism and commensalism?

Both organisms benefit in mutualism, while only one organism benefits in commensalism. Signup and view all the answers

Which type of symbiotic relationship involves one organism benefiting while the other is harmed slightly or may be killed?

Parasitism Signup and view all the answers

What term is used to describe a microorganism capable of causing disease when the balance between normal flora and human host is interrupted?

Pathogen Signup and view all the answers

Which type of microbes would typically be considered opportunistic pathogens?

Normal flora Signup and view all the answers

What is the main characteristic that distinguishes a parasite from other types of organisms?

It causes disease in the host organism. Signup and view all the answers

In which type of symbiotic relationship can one organism hamper or prevent the growth/survival of another without being affected itself?

Amensalism Signup and view all the answers