Lab Quiz 3 (Lab 4) Flashcards


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fungi and blood and animal tissues
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1

exoenzymes

acidic enzymes that perform extra-cellular digesttion of organic materials

2

3 feeding modes

saprobe: eat dead organic material

parasitic: eat living organic material (80% plant diseases)

mutualistic: symbiosis; example: mycorrhizae

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mycorrhizae

mutualistic w/ roots; hyphae wrap around and increase surface area to allow greater absorption of water and minerals; get carbs in return

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hyphae

tubular vegetative body

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mycelium

filamentous mat of hyphae (underground)

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specialized cells of fungi

haustoria: feeding tube into the host

rhizoids: root-like; anchoring of hyphae to substrate

reproductive

7

septae

wall-like partitions

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coenocytic

multinucleated and no septae

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dikaryotic

2 distinct nuclei (-,+)

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heterokaryotic

two genetically different nuclei

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phylum cryptomycota

lake and soi, flagellated sperm, chitin cell wall

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phylum zygomycota

bread mold (rhizopus), Pilobolus spore aim for light (aka shot-gun fungus)

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Zygomycota life cycle

form zygosporangium during sexual reproduction; asexual: mycelium and hyphae for spores

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Phylum Glomeromycota

arbuscular mycorrhizae; 80% of all plants have mutualistic relationships w them

15

Phylum Ascomycota

sac/cup fungi, the largest and most diverse; have sexual (perfect) and asexual (imperfect) reproduction; athlete's foot (ringworm) and yeast

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Ascomycota Life Cycle

asexual (imperfect) forms conidia; sexual (perfect) results in an ascocarp

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3 types of ascocarp

apothecium: open

cleistothecium: closed

perithecium: partially open

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Phylum Basidomycota

club fungi, bracket/shelf fungi (mushrooms); basidiospores on basidia

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Phylum Deuteromycota

"imperfect fungi"; no documentation of sexual stage but usually end up in ascomyctes

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lichen

symbiosis with:

fungi- shape, mass, uptake of materials

algae- carbon compounds

cyanobacteria- nitrogen fixing

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blood components

cellular and liquid

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RBCs

erythrocytes; most abundant, no nucleus or mitochondria, gas exchange

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WBCs

leukocytes, 2 types (granulocytes and agranulocytes)

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granulocytes

"phil"

neutrophils- most common, polymorphic nucleus

eosinophils- red granules, parasitic infection

basophils- rarest; purple, histamine

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agranulocytes

"cyte"

monocytes- BIG, horseshoe, wandering macrophages

lymphocytes- smallest leukocytes; memory bank

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platelets

: thrombocytes; clotting