Outras #1 Flashcards

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1
Q

high surface tnsion makes

A

a film along surface and it more dense so animals like pond skimmers with hairs (increase boyabncy and trap air) on their legs can go accross it

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2
Q

adhesion water sticks to

A

other charged sibstabnces cellulose, which allows water to flow opposed to gravity

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3
Q

solutes dissolved in aq

A

aqueous solutions are more likly to colide with enzymes and undergo chemical reactions

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4
Q

water also promoted enzyme activity

A

from absorbing heat from exo reactions and mantaiting acid base neutrality

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5
Q

in plants thigns are trasnprted via

A

xylem vessels with mineral ions
and dissolved nutrience in phloem

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6
Q

blood plasma transports

A

dissolved solutes –
amino acids, simple sugars, wastes (urea) and a small amount of gases (O2 and CO2)

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7
Q

water is more d

A

dense than air

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8
Q

water has a has a higher heat

A

higher heat capacity and can transfer heat easiler than air

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9
Q

phenotype

A

observable characteristics

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10
Q

girll plant cells also have

A

mitochondria

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11
Q

image size

A

actual size x magnification

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12
Q

glogi apparatus

A

packages and modify proteins and lipids

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13
Q

water is more.. tgan air

A

viscous than air and absorbs and transfers heat easily cause h2 particles are packed closly together

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14
Q

miller and urey experiment (5)

A
  1. boil water to steam (primodoral soup evaporates in high ºc)
  2. mix steam with gases (ch4, H, Nh4+)
  3. add electrical discharge (lighting, energy)
  4. cool mixture
  5. afte 1 week they found organic molecules and aa
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15
Q

issues with miller and urey

A

methan too high
used electrical discharge not uv light
didnt produce nucleotides
in h2o amino acids remain as monomers (not proteins), but water is needed for primodiral soup…

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16
Q

what makea a substance polar

A

-OH

17
Q

in ice spaces the distances

A

are bigger than ice so it floats

18
Q

it takes…. bases for a full turn

A

in dna
10

19
Q

genomes can change

A

durig life and some will neevr be expressed

20
Q

mutations happenn at a

A

constant rate so can be predicted

21
Q

luca got energy from

A

chemosynthesis (co2 to glucoes )

22
Q

cell theory

A

all is made up of +1 cells
they are the basic function unit
they come from pre-existing cells

23
Q

eukaryotes have folds

A

im membrane to increase sa

24
Q

water attatches to

A

hydrophobic R group side chain,

25
Q

genes are turned on by

A

on by the enviroment

26
Q

animals and fungi store carbohydrates as

plants store carbohydrates as

A

glycogen

starch