Fungi

Question 1

Fungi cell walls

Answer 1

Made of chitin

Question 2

Hyphae

Answer 2

Tubular cells that secrete enzymes to break down organic molecules

Question 3

Mycelium

Answer 3

Network of hyphae: infiltrate food source, maximum surface area

Question 4

Plasmogamy

Answer 4

Fusion of cytoplasm; step in sexual reproduction

Question 5

Karyogamy

Answer 5

Fusion of two nuclei; step in sexual reproduction

Question 6

Budding

Answer 6

Cell division (asexual reproduction)

Question 7

Chytridiomycota (chitrid)

Answer 7

Decomposers/parasites: amphibian decline, break down cellulose in guts of grazing animals

Question 8

Zygomycota

Answer 8

Bread and fruit molds

Question 9

Glomermycota (glomeromycetes)

Answer 9

Mycorrhizae (symbiotic with roots: plants have more surface area for absorption)

Question 10

Ascomycota (sac fungi)

Answer 10

Produce spores in sac (truffles, plant pathogens, yeasts, athlete’s foot, ergot, lichens)

Question 11

Basidiomycota (club fungi)

Answer 11

Mushrooms, puffballs, shelf fungi, decomposers of wood

Question 12

Lichens

Answer 12

Contain green algae or cyanobacteria; photosynthetic and nitrogen fixing

Question 13

Ecological roles of fungi

Answer 13

Decomposer: nutrient cycling
Symbiotic: parasite, mutualist