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Chapter 2 Flashcards

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1
Q

water is connected by __________

A

hydrogen bonds

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2
Q

weak covalent bonds

A

hydrogen bonds

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3
Q

like molecules attach to like molecules

A

cohesion

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4
Q

water going up a straw is an example of __________

A

cohesion

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5
Q

unlike molecules attached to other unlike molecules

A

adhesion

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6
Q

water brought to the top of a plant is an example of __________

A

adhesion

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7
Q

heat is transferred from _____ to _____ substances

A

warmer

colder

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8
Q

ice is _____ dense than the liquid form

hydrogen bonds __________

A

less

spread out

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9
Q

elements in air

A

nitrogen
oxygen
carbon
hydrogen

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10
Q

types of mixtures

A

solution

suspension

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11
Q

uniform mixture of 2 or more substances

A

solution

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12
Q

a solvent with nondissolved solute

A

suspension

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13
Q

dissolves the other substance and is present in greater amount

A

solvent

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14
Q

substance that is dissolved and is present in lesser amount

A

solute

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15
Q

ions formed in aqueous solutions

A

H+

OH-

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16
Q

compound that forms H+ ions in solution

A

acid

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17
Q

compound that produces OH- ions in solution

A

basic

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18
Q

pH of:
pure water
blood cells
stomach acid

A

pure water = 7
blood cells = 7.4
stomach acid = 2

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19
Q

small units

“single” “part”

A

monomer

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20
Q

large units formed by monomers

“many” “many parts”

A

polymer

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21
Q

CH2O

A

carbohydrates

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22
Q

single sugar molecules

A

monosaccharides

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23
Q

CHO

A

lipids

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24
Q

CHONS

A

proteins

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25
CHNOP
nucleic acids
26
bio molecules have a backbone of ______ atoms
Carbon
27
hydrophilic
attracts water
28
doesn't like water
hydrophobic
29
OH water-loving carbohydrates
hydroxyl group
30
COOH fatty acids proteins
carboxyl group
31
process of forming large organic molecules
polymerization
32
losing water while forming a polymer
dehydration reaction
33
polymer breaking into monomers
water is added
34
unused glucose becomes:
starch glycogen fat molecules
35
glucose, fructose, galactose
monosaccharides
36
sucrose
disaccharides
37
many sugar monomers
polymer chain
38
starch cellulose glycogen
polysaccharides
39
function of carbohydrates
provide and store energy | provide functional support
40
function of lipids
store energy provide for chemical communication provide protection
41
function of proteins
``` support transport communication reaction speeds cell growth ```
42
fats oils waxes steroids
lipids
43
muscle tissues | enzymes
proteins
44
function of nuclei acids
store and transmit genetic information
45
DNA | RNA
nucleic acids
46
a process that changes one set of chemicals into another
chemical reaction
47
elements or compounds that enter into a reaction
reactants
48
elements or compounds produced by a reaction
products
49
released or absorbed whenever chemical bonds form or break
energy
50
energy needed to get a reaction started
energy of activation
51
glucose molecule
C6H12O6
52
hydrophobic boundary in cell membrane waterproof coverings
lipids
53
3C backbone
glycogen
54
3 fatty acids
long hydrocarbon chain
55
Carbon joined to another Carbon by single bond
saturated fat
56
double bonded carbon
unsaturated fat
57
lipid with 4 fused Carbon rings
steroids
58
essential for membrane function
cholesterol
59
chemical messengers
hormones
60
5C sugar | nitrogen based
nucleotide
61
proteins are ______ of amino acids
polymers
62
chain of amino acids
polypeptide
63
proteins are made in __________
ribosomes
64
unraveling and changing the shape of a protein caused by changes in pH and temperature
denaturalization
65
amino acid is made up of:
Amin group carboxylate group R (side) group
66
DNA
thymine adenine cytosine guanine
67
RNA
uracil adenine guanine cytosine
68
in water: oxygen ___ charge hydrogen ___ charge
- | +

Biology (7 decks)

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