Chapter 47 Definitions SLO 2.4

Question 1

Antimetabolite

Answer 1

A drug that either is a receptor antagonist or resembles a normal human metabolite and interferes with its function in the body, usually by competing for the metabolite’s usual receptors or enzymes. (p. 765)

Question 2

Dermatophytes

Answer 2

Several fungi that are often found in soil and infect the skin, nails, or hair of humans. (p. 764)

Question 3

Ergosterol

Answer 3

The main sterol in fungal membranes (See sterols, below). (p. 766)

Question 4

Fungi

Answer 4

A large, diverse group of eukaryotic microorganisms that require an external carbon source and that form a plant structure known as a thallus. Fungi consist of yeasts and moulds. (p. 764)

Question 5

Moulds

Answer 5

Multicellular fungi characterized by long, branching filaments called hyphae, which entwine to form a complex branched structure known as a mycelium. (p. 764)

Question 6

Mycosis

Answer 6

Generally, any fungal infection. (p. 764)

Question 7

Pathological fungi

Answer 7

Fungi that cause mycoses. (p. 764) Sterols Substances in the cell membranes of fungi to which polyene antifungal drugs bind. (p. 765)

Question 8

Yeasts

Answer 8

Single-celled fungi that reproduce by budding. (p.764)