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What are 4 characteristics of yeast
- 1. reproduce asexually
- 2. most are saprophytic
- 3. they live off dead oragnaisims
- 4. some are parasitic
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How do yeast reproduce
budding-mother cell, daughter cell
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live off dead organisims
decay process
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live off live organisims
parasitic
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what are some uses for yeast
- brewing industry
- baking industry
- vitimin B-metoblism
- research
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what are 4 characteristics of mold
- most reproduce asexually
- some reproduce sexually
- all are heterotrophic
- none are autotrophic
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What is heterotrophic
take nutrition from outside
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what is autotrophic
self-nurishing
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what is mycelium
the body mass of a fungus
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body mass of a fungi consist of
aerial hyphe, and vegetative hyphe
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what is the function of vegetative hyphe
absorption of water
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how do myselium reproduce
- asexually-no sexual context
- some sexually-two different parents(burst, two unight, become a zygospore)
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what is at the end of an aerial hyphe
sporangium
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what are some mold problems
- allergies - respritory problems
- death
- food spoilage
- infections
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what are some positive things from mold
- decomposition
- food production
- antibiotics
- acids-(hydrocloric acid)
- bases
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what are the growing conditions of fungi
- dark
- wet
- warm-mesophilic 20-40c
- dirty - enriched media (opt-30-37)
- ph - 2-10 opt60
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what are some mycotic infections
- tinea capitis-ring worm of the scalp
- tinea corpois
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what are some preventions of mycotic infections
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a condition in which fungi pass the resistance barriers of the human or animal body and establish infections
mycotic infections
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what is another name for thrush
cndidiasis
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candidiasis
case by a fungus called candida albicans
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candida albicans
- white crusty growth
- usually seen in a child that has an immune deficiency
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what are some conditions stimulating deep mycotic infections
- diabetics
- chemo therapy patients-alters normal flora
- prolong use of antibiotics
- sergery
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what is it called when you have NO antibody production
Agamaglobulinemia
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what are some dificiencies
- agamaglobulinemia
- dysgamaglobulinemia
- hypogammaglobulinemia
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lacking a class or classes of antibodie
dysgamaglobulinemia
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insufficient concentration of antibodies
hypogammaglobulinemia
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IgA
- persperation
- urin
- breat milk
- tears-lacramal fluid
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IgD
- least found
- concntration inceases in people with multiple myloma-bone marrow cancer
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IgE
- reagen-colecules adhere to each other
- allergies
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what are some characteristics of viruses
- contain DNA or RNA not both
- active vs. inactive
- lack complete enzyme systems
- obligate parasites
- less than .45 microns in size
- have host specifisity-animal, plant, bacteria
- have tissue preferance-epitial, nervous, muscle, concetive tissue
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what three things do we look for in brewing yeast
- stable strain
- lot of product
- inexpensive substrate
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what is symbiosis
living together of two different organisms
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what is parasitism
organism living off a dead organism
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what is saprophism
organism living off a dead organism
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what is mutualism
two organisms living together, both benefiting
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what are some characteristics of algae
- all are photosynthetic-autotrophic
- all require water(some fresh, some marine)
- important in food chain
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what are classes of algae
- Cyanaphycaphyta
- Chlorophycophyta
- Crysophycophyta
- Rhodophycophyta
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Cyanophycaphyta
- blue-green algae
- procayotic-non membrain bond organally
- plast or plastic-a cell containing a pigment
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Chlorophycophyta
- largest class of fresh water algae
- chlorophyll-green algae-ex;spirogyra
- Eucaryotic
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Crysophycophyta
- pleomorphic-xanthrophyll-yellow
- silia-sand-largest group are diatomes ex;comet
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Rhodophycophyta
red algae-largest group of marine algae
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