Bio Exam II. 7 Zygomycetes

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Author:
DesLee26
ID:
266074
Filename:
Bio Exam II. 7 Zygomycetes
Updated:
2014-03-12 00:14:52
Tags:
BIO391
Folders:
Plant Kingdom
Description:
Mickle
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  1. Large or small group?

    A one ppoint, __ was considered this type of fungi. 

    __ are a majority; _ are minor.
    small

    glomeromycota 

    sapr. 

    parasites
  2. What is different about this group?
    their hyphae are coenocytic; no sight no crosswalls
  3. Why are they not water molds?

    How are they similar to chitin?
    because they have chitin. 

    how they form spores
  4. Explain asexual reproduction.
    produce sporangia (develop similarly to water molds)

    • between each part, there are nuclei 
    • each nucleus gets a cell wall to become a spore
  5. Sexual reproduction
    • two mating strains
    • if growing in the same vicinity, peglike structures form that come off the hyphae that enlarge  (progametangium)

    chemical attraction


    The gametes? come together and fuse--> zygospore

    In this, the nuclei fuse--> coenozygote (when the mating strains come together just before forming a zygospore

    SUMMARY: must have both mating strains--> gametangia--> young zygospores (coenozygote)--> zygospore--> sporangium--> spore
  6. What is pilobilus
    a zygospore that always shoots spores towards the light
  7. What disease do they form?
    black bread mold

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