FULL Biodiversity Flashcards

(34 cards)

1
Q

All life shares

A

RNA/DNA, shared biochem, codons for amino acids, membrane bound cell organelles

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2
Q

What is the significance of stromatolites?

A

provide physical evidence of life

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3
Q

Viruses

A

Do not have a membrane bound nucleus, lack mitochondria, parasites, lack ATP

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4
Q

How do prokaryotes reproduce

A

through binary fission

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5
Q

What are archaea characteristics

A

extremophiles, no nucleus, no organelles, no peptidoglycan, ether linked cell membrane lipids.

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6
Q

What do methanogens produce?

A

produces methane

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7
Q

What does infolding of the membrane do?

A

increase surface area, encloses DNA and forms ncleus

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8
Q

Characteristics of mitochondria

A

has its own DNA, 2 membranes, engulfed by prteobactrium

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9
Q

Characteristics of chloroplasts

A

has its own DNA, 2 membranes one is its original cyanobacterium

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10
Q

Secondary Endosymbiosis of Green Algae

A

euglenid chloroplasts

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11
Q

Secondary Endosymbiosis of red algae

A

stramenopile and alveolate chloroplasts

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12
Q

Tertiary Endosymbiosis of eukaryote with chloroplasts from Secondary endo of red algae

A

Dinoflagellates

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13
Q

Opisthokonts

A

fungi, choanoflagellates and animals

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14
Q

Synapomorphy of Opisthokonts

A

single flagellum of posterior end

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15
Q

Hyphae

A

allow passage of organic materials and organelles

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16
Q

Absorptivity heterotrophy

A

secrete enzymes when digest organic materials and nutrients then absorbed into the hyphae, like microspordia

17
Q

Chyrtids

A

has flagellated gametes that uses its own water

18
Q

Arbuscular mycorrhizae

A

90% of plants

19
Q

Synapamorphy of Dikarya

A

dikaryon stage and septate hyphae

20
Q

Plant Clade synapomorphy

A

presence of chloroplasts

21
Q

Glaucophytes

A

unicellular algae, asexual reproduction

22
Q

Red Algae

A

sister group to green plants, no chlorophyll b or starch

23
Q

Green Plants

A

have chlorophyll b, store starch which allows to store carbohydrates (increased wavelength of plants)

24
Q

Green Algae

A

Paraphyletic lineage that forms a polytomy at the base of the green plant clade

25
Challenges that plants face
desiccation, physical support, movement of fluids/nutrients, protection of gametes/embryo, increased UV radiation.
26
Cuticle
land plants wax coating (Prevents water loss), retain and protect embryo
27
stomata
open and close to allow water and gas exchange
28
phloem
distributes products of photosynthesis
29
Xylem
brings water and nutrients from the roots
30
What does the vascular tissue do?
helps for conduction and support
31
Alternation of generation in all land plants life cycles
diploid sporophyte produced haploid spores. Haploid gametophyte stage produces haploid gametes. Fuse to make a diploid
32
Nonvascular
large haploid gametophyte, small diploid sporophyte liverworts and mosses
33
Vascular
larger diploid sporophyte, haploid gametophyte is small, plants like lycophytes , ferms, gymnosperms, and angiosperms
34
Liverworts
tend to be low to ground in moist areas- limited water capacity for water transport