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Fungi

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kimberly ortega

on 13 October 2012

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Transcript of Fungi

Fungi What is a Fungi? Diversity of fungi Ecology of fungi Fungi and photosynthesizers Lichens & Bioindicators Fungi & Humans lichens and mycorrhizae
are 2 examples of mutualistic
relationships between
fungi and other organisms. Because they absorb much of their water and minerals from the air and rain, lichens are sensitive to polutants. People have used fungi
to make disease treating
drugs like antibiotics.

Fungi provide us with
delicious food products. Ascomycota most are multicellular, variety of habitats
, reproduce sexually and asexually Chytridiomycota Are referred to as chytrids or chytridiometes. most are aquatic and unique among fungi. Zygomycota Is a common mold that grows
on bread and other foods. Biologists classify fungi into 4 major phyla: Major Features of Fungi Some features in fungi that
distinguish them from plants include their: Reproduction in Fungi Some fungi only can reproduce
asexually through mitosis, it includes fragmentation, budding
and spore production. Nutrition in Fungi: Fungi digest their food
before they ingest it. Caracteristics of Fungi Some of the largest and
oldest organisms on
Earth that grow in your backyard. Unicellular Fungi Multicellular
Fungi Cell Walls Hyphae Cross walls Saprophytic Fungi Parasitic Fungi Mutualistic Fungi 1) Name 3 major characteristics of the Kingdom Fungi.
Ans/ Are multicellular or unicellular eukaryotic heterotrophs.

2) Difference between septate and aseptate hyphae.
Ans/ Aseptate fungi means their hyphae are not partitioned by septa.

3) state how fungi feeding differs from animal feeding.
Ans/ Fungi feed by absorption and animals feed by ingest.

4) the methods that parasitic, saprophytic, and mutualistic fungi use to obtain food.
Ans/ Parasitic: absorb nutrients from body fluids.
saprophytic: absorb nutrients from dead organic matter.
mutualistic: Absorb nutrients from a host, with some beneficial functions.

5) Describe 3 methods of asexual reproduction in fungi.
Budding: Unicellular cells reproduce asexually.
Fragmentation: occurs when the mycellium of a fungus is physically broken.
spore production: is a reproductive cell that develops into a new organism.
Assessment 20.1 Chytridiomycota Zygomycota Ascomycota Basidiomycota Are major decomposers of food. Basidiomycota 1) Identify 2 characteristics of each of the4 major phyla of fungi.

2) Explain why fungi produce so many spores.

3) Diagram the life cycle of ascomycetes.

4) Describe what are the imperfect fungi?

5) Compare sexual reproduction in ascomycetes and bisidiomycetes. Assesment 20.2 Lichen Bioindicator:
Is a living organism
that is sensible
to changes
in environmental
conditions. Bioremediation Food american chestnut trees are killed by the fungus endothia parasitica. the fungi quickly spread from tree to tree and they have killed many trees in north america. Harmful Fungi 1) Identify the characteristics of the mutualistic realtionship between fungi and algae.

2) Explain why lichens are important for the environment

3) Apply what you know about enzymes to design a lichenase enzyme for lichen-eating animals.

4) Construct a table to show the beneficial and harmful effects of fungi on humans. Assessment 20.3 THE END!!
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