Outras #1

Question 1

high surface tnsion makes

Answer 1

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

Question 2

adhesion water sticks to

Answer 2

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

Question 3

solutes dissolved in aq

Answer 3

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

Question 4

water also promoted enzyme activity

Answer 4

from absorbing heat from exo reactions and mantaiting acid base neutrality

Question 5

in plants thigns are trasnprted via

Answer 5

xylem vessels with mineral ions
and dissolved nutrience in phloem

Question 6

blood plasma transports

Answer 6

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

Question 7

water is more d

Answer 7

dense than air

Question 8

water has a has a higher heat

Answer 8

higher heat capacity and can transfer heat easiler than air

Question 9

phenotype

Answer 9

observable characteristics

Question 10

girll plant cells also have

Answer 10

mitochondria

Question 11

image size

Answer 11

actual size x magnification

Question 12

glogi apparatus

Answer 12

packages and modify proteins and lipids

Question 13

water is more.. tgan air

Answer 13

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

Question 14

miller and urey experiment (5)

Answer 14

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

Question 15

issues with miller and urey

Answer 15

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…

Question 16

what makea a substance polar

Answer 16

-OH

Question 17

in ice spaces the distances

Answer 17

are bigger than ice so it floats

Question 18

it takes…. bases for a full turn

Answer 18

in dna
10

Question 19

genomes can change

Answer 19

durig life and some will neevr be expressed

Question 20

mutations happenn at a

Answer 20

constant rate so can be predicted

Question 21

luca got energy from

Answer 21

chemosynthesis (co2 to glucoes )

Question 22

cell theory

Answer 22

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

Question 23

eukaryotes have folds

Answer 23

im membrane to increase sa

Question 24

water attatches to

Answer 24

hydrophobic R group side chain,

Question 25

genes are turned on by

Answer 25

on by the enviroment

Question 26

animals and fungi store carbohydrates as

plants store carbohydrates as

Answer 26

glycogen

starch