Diversityyy Flashcards

1
Q

origins of fungi

A

aqautic flagellenated organisms

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2
Q

what are the three main components of fungi?

A

chitin - cell wall
ergosterol - found in the cell membranes and indicator of fungal presence
mycellium - interconnected tubes (single filament is hyphae)

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3
Q

function of hyphae

A

they absorb nutrients via vegetative spread and enzyme secretion
large s.a. ideal for absorption

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4
Q

What are Cords?

A

aggregates of hyphae that are intertwined and can move nutrients and water
> equivelent to xylem+phloem
they are DYNAMIC so can respond to the system

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5
Q

basidiomycota strucuture

A

4 basidiospores on a basidium

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6
Q
ascoymycota spore structure
A 4 spores on a basidium
B flagellanated spores
C spores in a sac
D asexual spores
E thick walled spores (zygospore)
A

OPTION C
ascospores In a ascus (SAC)

a- badiomycota
b-blasto and chytri
d-glomerulomycota
e- zygomycota

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7
Q

how do fungi spread?

A

spread via spores or they grow out (non-restrictive units)

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8
Q

how do fungi feed?

A

via carbon fixation.
saprotophs
necrotrophs
biotrophs

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9
Q

can you say the human K P C O F

A

animalia | chordata | mammalia | primates | hominidae |

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10
Q

which phyla are radiata

A

placozoans, ctenophores and cnidarians

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11
Q

what makes an animal

A

they are motile and heterotrophs
they are also multicellular and have a nervous system
they can be ALL be traced back to a common ancestor (not a clade)

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12
Q

what is a deutorostome

what is protosome

A

protosome is where the mouth develops first then anus

deutorostome is the mouth second

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13
Q

what is unique about chordata?

A

this is where humans descend from. they are the only deutorostomes in the bilaterian category

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14
Q

what is the difference between annelids and nematodes?

A

nematods are not segmented

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15
Q

which phyla are ectyzoans?

A

arthopods and nematodes

> they have a three layered cuticle to exchange gases at the gut

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16
Q

which is the most abundant phyla
sponges
arthopods
ctenophores

A

arthopods are the most diverse ``

17
Q
What is the superphyla of the kingdom Animalia that has key features such as a 3 layered cuticle which molts as the animal grows?
Protostomia	
Lophotrochozoa
Radiata
Ecdysozoa	
Deuterostomia
A

OPTION D
Ecdysozoa - 3 layered cuticle (nematodes + arthropods)
Lophotrochozoa - lophophore feeding structure and trochophore larvae (flatworms, annelids, molluscs)
Radiata - radial symmetry (placozoans, ctenophores, cnidarians)
Bilateria - bilateral symmetry + triploblastic (flatworms, annelids, molluscs, nematodes, arthropods)

18
Q
Which type of wood decay uses all compounds? 
A stain
B brown rot
C white rot
D soft rot
A

WHITE ROT! forms are white fibrous appeeance, ususally basidmycota

Brown rot is cellulose using peroxisome and forms a brown, crumbly appearance and basidoimycota
Soft rot is simple slow and moist
Stain is simple and mainlly ascomycota

19
Q

Which nutritional mode involves dead plant and animal tissue and is necessary for nutrient cycling?
necrotrophy
saphrotrophy
biotrophy

A

sacrotrophy! - important for soil stability and humus formation

Necrotrophy kills live plant and insect tissue and causes vascular wilts e.g dutch elm disease.
Biotrophy: parasitic, mutualistic or mycohizzae relationships e.g lichens - algae/cyanobacteria and fungi

20
Q

why do fungi require such diverse food intake priceses?

A

they lack chlorophyll so cant do p/s so main source is by carbon fixation/organic compounds from other sources!

21
Q

what type if growth do plants have

indeterminate or determinate?

A

indeterminate so undergo morphiloogical changes due to the enviroment. also immobile and will ocntinue to grow and have plasticity to re-differentiate

22
Q

what are features of dicots and name some crops

A

broad leaf plants
2 cots, branching veins
shorter and less bendy due to organised structure of vascular bundles
tap root and lateral roots for absorption

tomato, leafy veg, soy

23
Q

which are more diverse

angiosperms or gymniosperms?

A

ANGIOSPERMS - lots of morphology // petals!

gymnosperms is non floweing plant - has seeds

24
Q

name some monocots and features

A
wind pollination, 
one cot, parallell veins
longer and bendy as vacular tissue is orgnaisation random
fibrous root
# maize, rice, whaet, orchid, grass
25
Q

What are plants with seeds but no flowers called?
gymnosperms
angiosperms
monocot

A

OPTION A