Fungal physiology

Question 1

Nutritional type

Answer 1

chemoheterotrophic (lacks chlorophyll)

Question 2

T or F: Require preformed organic carbon compounds for nutrition.

Answer 2

True

Question 3

Obtain their nourishment by secreting enzymes into the external substrate and

Answer 3

by absorbing the released nutrients through their cell wall

Question 4

T or F: Incapable of growing on dead (saprophytic) and living organic matter.

Answer 4

False (Capable)

Question 5

Motility

Answer 5

Usually nonmotile except for the phylum Chytridiomycota and species of Rhizophidium.

Question 6

Atmospheric requirements

Answer 6

Mostly aerobic, some are facultative anaerobic

Question 7

Lysine synthesis

Answer 7

Utilize α-aminodiphate pathway.

Question 8

Lysine synthesis: Precursor for ____ and lysine, also for the development of antifungal drugs

Answer 8

Penicillin

Question 9

Reproduced by means of microscopic propagules either

Answer 9

Spores or conidia

Question 10

describes the propagules that result form an asexual process (mitosis only) and generally short-lived propagules.

Answer 10

Conidium

Question 11

T or F: Most fungi are capable of sexual reproduction (involving meiosis, preceded by fusion of the nuclei of two cells)

Answer 11

True

Question 12

Some species are _________ (self-fertile) and able to form sexual structures between different
cells within an individual thallus.

Answer 12

Homothallic

Question 13

Most are _______ that do not form their sexual structures unless two capable isolates come into contact

Answer 13

Heterothallic

Question 14

T or F: once two compatible nuclei have fused, mitosis can occur, leading to the production of sexual Spores.

Answer 14

False (Meiosis)

Question 15

T or F: In some cases, spores are produced in millions in macroscopic “fruiting bodies” such as mushrooms

Answer 15

True