When does a hypothesis become a theory?

when it is widely accepted by the scientific community

If we have a two molar solution, what does that mean?

have two timed the number dissolved in 1 liter of water

What are the three monosaccharides in a phospholipid?

phosphate group, 2 fatty acids, 3 carbon glycerol

6 elements commonly found in living organisms:

carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur

What happens in quaternary conformation?

joins polypeptide chains to form macromolecule

same element but different number of neutrons

Why is the atomic mass a decimal?

average of all isotopes of that element

studbud

Biology 2 DC Semester 1 Review

83 termsStudBud Administration11 plays

Imported from external platform

Flashcards83 cardsFPractice quizPHost liveL

Questions 83

Answers

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

Biology 2 DC Semester 1 Review Flashcards | StudBud