FULL Biodiversity Flashcards

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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
Q

Challenges that plants face

A

desiccation, physical support, movement of fluids/nutrients, protection of gametes/embryo, increased UV radiation.

26
Q

Cuticle

A

land plants wax coating (Prevents water loss), retain and protect embryo

27
Q

stomata

A

open and close to allow water and gas exchange

28
Q

phloem

A

distributes products of photosynthesis

29
Q

Xylem

A

brings water and nutrients from the roots

30
Q

What does the vascular tissue do?

A

helps for conduction and support

31
Q

Alternation of generation in all land plants life cycles

A

diploid sporophyte produced haploid spores. Haploid gametophyte stage produces haploid gametes. Fuse to make a diploid

32
Q

Nonvascular

A

large haploid gametophyte, small diploid sporophyte liverworts and mosses

33
Q

Vascular

A

larger diploid sporophyte, haploid gametophyte is small, plants like lycophytes , ferms, gymnosperms, and angiosperms

34
Q

Liverworts

A

tend to be low to ground in moist areas- limited water capacity for water transport