Fungi (LC 2026) (Leaving Cert Biology): Flashcards
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What type of organism is Rhizopus?
What type of organism is Rhizopus?
Saprophytic
Definition of saprophyte
Definition of saprophyte
Organism that lives on dead organic matter
What does Rhizopus live on?
What does Rhizopus live on?
Bread and fruit
What does Rhizopus secrete to digest food?
What does Rhizopus secrete to digest food?
Enzymes
Structures that absorb digested food in Rhizopus
Structures that absorb digested food in Rhizopus
Rhizoids and hyphae
What does the sporangium contain?
What does the sporangium contain?
Spores
What type of reproduction do spores represent?
What type of reproduction do spores represent?
Asexual reproduction
Function of sporangiophore
Function of sporangiophore
Holds up sporangium; allows spore dispersal
What does aseptate mean in hyphae?
What does aseptate mean in hyphae?
Have no cross walls
What is the nuclear characteristic of hyphae?
What is the nuclear characteristic of hyphae?
Multinucleate
What is a mycelium?
What is a mycelium?
Mass of hyphae
What is the chromosome state of mycelium cells?
What is the chromosome state of mycelium cells?
Haploid (one set of chromosomes)
What is a stolon?
What is a stolon?
Hypha that grows over food surface; allows asexual reproduction
Three functions of rhizoids
Three functions of rhizoids
Absorb food, release enzymes, anchor fungus
When does sexual reproduction occur in Rhizopus?
When does sexual reproduction occur in Rhizopus?
In unfavourable conditions for survival