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Biology 113 Exams 1 and 2 Flashcards | StudBud
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Biology 113 Exams 1 and 2
Biology 113 Exams 1 and 2
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All the multiple choice questions from the exams 1 and 2.
Flashcards
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Questions
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Answers
1
During replication, which enzyme unwinds the DNA double helix?
DNA primase
DNA ligase
DNA gyrase
DNA helicase
2
What type of DNA damage should sunbathers be aware of before going to the beach?
photolyase-induced mutation
thymine dimers
activations of uvr A, B, and C genes
decreased telomere length
3
Messenger RNA molecules contain information that is used to synthesize ________.
fatty acids
polypeptides
amino acids
nucleotides
4
Water movement from a high concentration to a low concentration through a semipermeable membrane is know as...
mass actin
diffusion
osmosis
equilibration
5
The lagging strand is replicated with a series of Okazaki fragments and that is why its synthesis is considered to be...
bidirectional
discontinuous
continuous
antiparallel
6
Where is the vacuole?
F
D
E
C
7
Microfilaments (actin, microtubules, intermediate filaments) from the cell-supporting structure called the...
cytoskeleton
cytoplasma
plasma membrane
nucleus
8
Negatively or positively charged atoms are known as...
ions
isomers
unstable atoms
isotopes
9
The genetic code uses how many nucleotide(s) to specify one amino acid?
four
two
one
three
10
What does the initiation of transcription does not require ____.
enzymes
a promoter
a primer
a DNA template strand
11
Where is the cell membrane?
C
D
E
F
12
Information obtained by Franklin from Xray crystallography on DNA suggested that it is shaped like a...
helix
hollow cylinder
ribbon
pleated sheet
13
Where is the mitochondria?
K
J
I
H
14
The central dogma of biology can be stated as...
DNA -> proteins -> RNA
RNA -> DNA -> proteins
DNA -> RNA -> proteins
proteins -> RNA -> DNA
15
Synthesis of a growing strand of DNA is carried out by adding nucleotides to which end of the growing strand?
1'
3'
2'
5'
16
What would happen to the H
+
ion concentration as substances traveled from a pH of 7.5 to a pH of 5.5?
It increase by 100 fold
It increase by 10 fold
It decrease by 10 fold
It decrease by 100 fold
17
Neon's electron configuration can be written as, 1s
2
2s
2
2p
6
. What is the electron configuration of argon.
1s2 2s6 2p2 3s6 3p2
1s2 2s8 3p8
1s2 2s2 3p6 4s2 5p6
1s2 2s2 2p6 3s2 3p6
18
Where is the Golgi apparatus?
L
K
I
J
19
After Darwin's voyage on the
Beagle
, he proposed that the process of natural selection was a mechanism for...
speciation
evolution
overpopulation of finches on the Galapagos Islands
sexual selection
20
Mitochondria and chloroplasts are the only other organelles besides the nucleus that contain...
channels
pigments
DNA
pores
21
During translation, amino acids are carried to the ribosomes by ____.
snRNA
rRNA
mRNA
tRNA
22
DNA consist of two antiparallel strands of nucleotides held together by...
covalent bonds
hydrogen bonds
peptide bonds
ionic bonds
23
The primary difference between fungi and animal sis that fungi...
are multicellular
are photosynthetic
have nuclei
digest food externally
24
Enzymes function to...
catalyze chemical reactions
regulate messages between cells
transport molecule and ions across membranes
react with other enzymes
25
Luke's pediatrician said he be a tall adult and seeing his heigh, weight, and length. What type of reason is this?
deductive
inductive
reduction
applied theory
26
Biological membranes contain bilayers containing
mostly
....
phospholipids
triglycerides
prostaglandins
oils
27
What type of bond would S-H form?
polar covalent
ionic
hydrogen bond
non-polar covalent bond
28
Carbon-12, carbon-13, and carbon-14 are examples of...
isomers
isotopes
molecules
ions
29
Where is the cell membrane?
F
K
H
G
30
The concept that the animals with the best characteristics for survival are more likely to pass down their traits is...
geometric diversity
natural selection
superior beings
biological diversity
31
The site where the two original DNA strands are separated and active replication occurs is called the...
sliding clamp subunit
replication fork
primosome
replisome
32
The types of of bonds linking nucleotides in nucleic acids are...
non-polar covalent bonds
ionic bonds
phosphodiester bonds
peptide bonds
33
Which of the following reactions is a hydrolysis reaction?
A + B + H2O → C
A + H2O → B + C
A → B + C + H2O
A + B → C + H2O
34
The microwave won't turn on and you think it's because of a tripped circuit breaker. What is this an example of?
developing a hypothesis based on an observation
testing a prediction generation from a hypothesis
forming conclusions from the results on the experiment
devoting observations based on a hypothesis
35
Eukaryotes have how many different types of RNA polymerase enzymes?
64
three
two
four
36
In crystal matrix of ordinary salt, the sodium of chlorine are held together by...
covalent bonds
ionic bonds
hydrogen bonds
peptide bonds
37
Covalent bonds connect monomer units in sugars formed by the removal of a water molecule is what type of reaction?
a hydrolysis reaction
a chemical reaction
an oxidation-reduction reaction
a dehydration reaction
38
Your body shivering to regulate body temperature is an example of what?
energy diffusion
sensitivity
homeostasis
evolutionary adaptation
39
The evolutionary process that created chloroplasts and the mitochondria is...
punctuated equilibrium
endosymbiosis
evolution
symbiosis
40
The DNA sequence capable of pairing with 5' CGATTAGT 3' is?
5' CGATTAGT 3'
5' GCTAATCA 3'
3' CGATTAGT 5'
3' GCTAATCA 5'
41
During this process, RNA polymerase synthesizes a molecule of RNA using DNA as a template.
translation
termination
gene sequencing
transcription
42
Where is the Golgi apparatus?
E
F
G
H
43
An amino acid is a small organic molecule with a central carbon atom bound to a carboxyl group and what else?
an amino group
a hydrogen atom
all of the above
a carbon containing group
44
Ribosomes are complex aggregates of....
RNA and sugars
DNA and proteins
RNA and DNA
RNA and proteins
45
The specific amino acid sequence is its...
primary structure
tertiary structure
secondary structure
quaternary structure
46
Where is the endoplasmic reticulum?
C
D
A
B
47
You walk in on your professor talking about "five-prime end" and "three-prime end." What is he talking about?
lipids
carbohydrates
proteins
DNA/RNA
48
Is this an animal or plant cell?
plant
animal
49
Watson and Crick developed a model of DNA in which the two strands twist into the shape of a...
double helix
circle
double pleated sheet
helix
50
Is this an animal of plant cell?
plant
animal
51
The nitrogenous base that is
normally
only found in RNA and not DNA is...
adenine
thymine
cytosine
uracil
52
Amino acids are linked together by peptide bonds in a....
phospholipid
polypeptide
polysaccharide
nucleic acid
53
If you prevent vesicle transportation at the
cis
face of the Golgi apparatus, what will no longer happen in the cell?
movement of vesicles from the mitochondria to the Golgi apparatus
synthesis of proteins or lipids on the ER
movement of lipids and proteins from the ER to the Golgi apparatus
movement of materials from the Golgi apparatus to the plasma membrane
54
Both fructose and glucose have the same number and type of atoms. Why are they not named the same thing?
They have different secondary structure
They cannot be converted into glucose
They are isomers of the monosaccharide, glucose
One is found in RNA and the other DNA
55
An effective way to increase the rate of the reaction A + B → C would be to...
decrease the temperature
remove the catayst
add more A and/or B
add more C
56
Where is the chloroplast?
L
K
I
J
57
Experiments are carried out to changing one variable at a time and including an unchanging variable termed a(n)...
altered variable
control
stable variable
experimental variable
58
DNA and RNA contain functional units known as...
amino acids
peptides
enzymes
nucleotides
59
The method of DNA replication, where each original strand is used as a template to build a new strand, is called the...
semiconservative method
conservative method
continuous method
disruptive method
60
A DNA molecule containing 32% thymine would contain how much cytosine?
18%
64%
36%
32%
61
How does DNA polymerase differ from RNA polymerase?
Only DNA polymerase has a proofreading ability
only RNA polymerase adds new nucleotides to the 3' end of a growing chain
only DNA polymerase uses a template DNA strand for synthesis of nucleotides
only RNA polymerase requires a primer
62
If the DNA double helix was a ladder, what would be the rungs/steps on the ladder?
sugars only
phosphate groups only
purines and pyrimidines
phosphate groups and other bases
63
A suggested explanation that might be true and is subject to testing by further observations is a(n)....
theory
experiment
scientific principal
hypothesis
64
Because oxygen is more electronegative than hydrogen, the water molecule is?
ionic
polar
non polar
hydrophobic
65
What would happen to a protein if trafficking was blocked at the
trans
face of the Golgi?
the protein would be stuck in the Golgi
the protein would return to the endoplasmic reticulum
the protein would continue on to the cell surface
the protein would exit the Golgi, but instead be targeted to the cytoplasm
66
carbohydrates are composed of...
fatty acids and glycerol
monosaccharides
amino acids
nucleotides
67
The semifluid matrix that surrounds organelles in a cell is called the...
stroma
cytoplasm
ribosome
nucleoplasm
68
During translation, uncharges tRNA molecules leave ribosomes from this site.
termination
P
A
E
69
What creates a short RNA primer that is complementary to a DNA template?
I don't know anymore
look... your choices are blue or red
RNA primase
DNA primase
70
Small single-celled organisms that lack nuclei can be broadly classified in what domain?
animalia
bacteria
fungi
protista
71
If you put plant cells in a hypotonic solution they swell up. The water entering the cell can be found in the...
central vacuole
nucleus
Golgi body
centriole
72
Either strand of a DNA molecule can be used as a template to reconstruct the other because the strands are...
identical
bound
complimentary
antiparallel
73
Photosynthetic pigment in bacteria are located in the...
plasmids
cell wall
nuclei
chloroplasts
74
The strand of DNA that is not transcribed is called the _____.
complementary strand
noncoding strand
template strand
coding strand
75
Where is the endoplasmic reticulum?
D
G
E
F
76
How could you use a novel protein's sequence to predict the function of the protein?
useignt eh sequence to make antibodies against the protein
looking for conserved domains
Determine the secondary structure of the protein
determining sequences that could encode the protein
77
Where is the cell wall?
K
G
L
H
78
The atomic number of an element is equal to the number of...
protons only
protons plus electrons
neutrons plus electrons
neutrons only
79
When two atoms share a pair of electrons, the bonding is referred to as...
hydrogen
unstable
covalent
ionic
