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Biology 2 DC Semester 1 Review Flashcards | StudBud
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Biology 2 DC Semester 1 Review
Biology 2 DC Semester 1 Review
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1
What is important between all the various systems of life?
enzymes
mating
interactions
reproduction
2
What is unique about the chemistry of water that allows it to attract a solute?
polar molecule
equal electrons
unequal electrons
nonpolar molecule
3
What do we call the breaking apart of a water molecule?
hydrolysis
association
dissociation
4
What is an isotope?
same element but different number of electrons
different element but same number of neutrons
different element but same number of electrons
same element but different number of neutrons
5
What is the oldest domain?
archaea
bacteria
kingdom
eukarya
6
What has to be released from one monomer to the other to be able to link?
enzymes
hydroxide
hydrogen
hydrogen and hydroxide
7
Dehydration synthesis requires enzymes:
True
False
8
How is density measured?
volume over density
density over mass
volume over mass
mass over volume
9
What are the functional groups that form peptide bonds?
methyl
carbonyl and sulfydrl
amino and carboxyl
phosphate
10
What happens in secondary conformation?
helix
macromolecule
coiling and folding/beta pleated sheets
polypeptide chain
11
What are the monomers of nucleic acids?
genes
bases
nucleotides
nucleosides
12
How many domains are there?
3
2
4
1
13
Which electrons are involved in bonding?
4 electrons
valence electrons
neutrons
protons
14
What is a covalent bond?
share neutrons
protons are give
carbons are shared
valence electrons are shared
15
What is the study of right and wrong?
biology
life
morals
ethics
16
Nonpolar bond means:
hydrophilic
unequal
equal
hydrophobic
17
Ionic bond means:
electrons taken
electrons not shared
electrons shared
electrons given
18
What level of organization is most exclusive?
variety
domain
species
kingdom
19
What type of science are they pursuing if they use what they discovered in pure science to help the earth?
pure science
technology
genetics
20
What is meant by “evolution accounts for the unity and diversity of life”?
shows what domain we are from
shows common ancestry and natural selection
shows we came from bacteria
21
What is the name of the while number on the periodic table?
math
atomic number
atomic mass
electrons
22
Why is the atomic mass a decimal?
average of compunds
average of elements
average of all isotopes of that element
average of protons and electrons
23
What happens in quaternary conformation?
folding and coiling
joins polypeptide chains to form macromolecule
beta pleated sheets
helix
24
Functional Group: Carbonyl
-CH^3
-OH
PO^3
-C=O
25
What can we add to carbon skeletons for variety?
ATP
phosphate
genes
functional groups
26
Polar bond means:
equal
unequal
hydrophilic
hydrophobic
27
Most monomers are linked together through what type of reaction?
glucose
catalyst
dehydration reaction
28
On which carbon are nucleotides linked together?
3 prime and 1 prime
4 prime and 6 prime
3 prime and 5 prime
5 prime and 9 prime
29
What do we call how much of a solute is dissolved in a solvent?
density
volume
molarity
mass
30
What is the prefix for one carbon?
oct
but
meth
eth
31
What is the difference between hypothesis and theory?
theory-large body of evidence. hypothesis-testable and falsifiable
theory-is questioning. hypothesis-conclusive
32
Name the 3 domains:
bacteria, protists, kingdom
eukarya, bacteria, archaea
eukaryotes, prokaryotes, domain
33
What is the numerical value of water’s specific heat?
1
32
-7
0
34
Some isomers have devastating results, give one example?
thalidomide
carbon
enantiomers
hydrogen
35
What level of organization is most inclusive?
kingdom
domain
species
population
36
What process do scientists use to find the best answer?
asking
reasoning
thinking
questioning
37
What is a mole?
1 L
.5 mL
6.02 x 10^23
-6.02 x 10^23
38
What do we call atoms that line up vertically on the periodic table?
parents
family
sisters
cousins
39
It is possible to alter the number of electrons without changing the number of neutrons.
True
False
40
what happens in tertiary conformation?
macromolecule
beta pleated sheets
polypeptide chain
helix
41
What happens in primary conformation?
polypeptide chain forms
beta pleated sheets
macromolecule
helix
42
A polysaccharide:
transfers
makes
stores
kills
43
What is the core theme of biology?
DNA
genetics
RNA
evolution
44
What allows carbon to be so useful?
mRNA
electron configuration
electron transport chain
45
If we have a two molar solution, what does that mean?
have two times the number dissolved in 1/2 liter of water
have two timed the number dissolved in 1 liter of water
have one half if the number dissolved in 1 liter of water
46
What type of bond link monosaccharides to polysaccharides?
glucose
covalent bonds
links
glycosidic linkage
47
Functional Group: Methyl
-CH^3
-NH^2
PO^3
-COOH
48
What part of a water molecule has a slightly positive charge?
oxygen
hydrogen
49
For every glycosidic linkage, what has to be removed?
hydrogen
amino
2 hydrogens and 1 oxygen
carboxyl
50
What do scientists exhibit when they do not accept the first answer they get?
skepticism
give up
concern
confusion
51
Why can we find ribosomal rna in both eukaryotes and prokaryotes?
they are bounded by a membrane
they are not bounded by a membrane
52
What is name of the shape of proteins?
shape
condition
conformation
hydrogen
53
What type of reasoning starts with something broad?
deductive
inductive
54
What is the lightest subatomic particle?
proton
atom
electron
neutron
55
Hydrogen bond means:
ionic
covalent
weak bond
strong bond
56
How many bonds does carbon make?
4
3
2
1
57
Atomic mass is determined by?
electrons
protons
electrons and neutrons
protons and neutrons
58
Functional Group: Carboxyl
-COOH
-CH^3
-C=O
-SH
59
What is attached the the 5 prime carbon?
phosphate
hydrogen
oxygen
phosporous
60
What type of science is one pursuing to find new info?
pure science
DNA
organic chemistry
functional groups
61
What are nucleotides made of?
ATP, DNA, RNA
sulfur, hydroxyl, energy
sugar, base, phosphate
62
Why is specific heat so important to biology?
moderates temperature
maintains function
homeostasis
creates temperature
63
What do we call an ion that has lost electrons?
ion
cation
antion
ionic acid
64
What is the decimal number on the periodic table?
science
atomic mass
atomic number
proton
65
What is the weakest of TRUE bonds?
hydrogen
ionic
covalent
66
A disaccharide is:
starch
sucrose
fructose
cellulose
67
What is nature acting directly upon in natural selection?
genotype
phenotype
68
What is the foundational atom of CHNOPS?
nitrogen
carbon
electron
atom
69
What kind of bonds can carbon form?
glycosidic
hydrogen
covalent
ionic
70
What type of reasoning begins with something specific?
deductive
inductive
71
When does a hypothesis become a theory?
when everyone likes it
when it becomes deductive
when it is widely accepted by the scientific community
when it is created
72
What does inquiry mean?
think
question
talk
answer
73
What do we call the destruction of polymers?
hydrolysis
hexokinase
dehydrogenase
74
Functional Group: Sulfhydrl
-COOH
-OH
-CH^3
-SH
75
A monosaccharide is:
starch
cellulose
glucose
76
What are the three monosaccharides in a phospholipid?
phosphorus, carbon, nitrogen
phosphate group, 2 fatty acids, 3 carbon glycerol
tails, head, protein
77
What is at the heart of science?
discovery
inquiry
hypothesis
experiment
78
Functional Group: Hydroxyl
-SH
-NH^2
PO^3
-OH
79
Functional Group: Phosphate
-CH^3
-C=O
-COOH
PO^3
80
The main atoms of life are:
hydrogen, carbon, nitrogen, oxygen
proteins, DNA, RNA, phospholipids
hydrogen, sulfur, oxygen, phosphate
81
Functional Group of Amino:
-NH^2
-OH
-COOH
PO^3
82
6 elements commonly found in living organisms:
carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur
carbon, hydrogen, nitrogen, oxygen, phosphate, sulfur
83
What kind of properties occur with system interactions?
scientific method
life properties
hypothesis
emergent properties
