Saprotrophs and Lichens

Question 1

Saprotrophic nutrition

Answer 1

Extracellular digestion involved in the processing of decayed organic matter

Question 2

Zones of hyphae

Answer 2

Apical growth zone, absorption zone, storage zone

Question 3

Cellulase

Answer 3

Class of enzymes that break bonds between glucose units of cellulose

Question 4

Break down lignin

Answer 4

Recalcitrant component degraders

Question 5

Lignin

Answer 5

Class of complex organic polymers that lend rigidity to cell wall

Question 6

Lichen

Answer 6

Mutualistic relationship between a fungus and photosynthetic partner

Question 7

Asexual reproductive structure of lichen, small groups of algae surrounded by hyphae

Answer 7

Soredia

Question 8

Cephalodium

Answer 8

Cyst-like growth in lichen that harbors N-fixing cyanobacteria

Question 9

Epiphytes

Answer 9

Organisms that live on the surface of a plant, neither pathogen or symbiont

Question 10

Endoliths

Answer 10

Organisms that live on the surface of a rock

Question 11

Biological soil crusts

Answer 11

Complex communities of algae, cyanobacteria, lichens, and bacteria that colonize surfaces of barren environments

Question 12

Parasitic fungi that infects lichens

Answer 12

Lichenicolous fungi