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WorksheetsMicrobiology unit 2
Total questions: 149
Worksheet time: 5hrs 58mins
Name
Class
Date
1.
Which of the following are all essential macronutrients
a)
None of these
b)
carbs, lipids, proteins and nucleic acids
c)
Carbon, hydrogen, o2, nitrogen, sulfur, and phosphorus
d)
sodium, potassium, iron and calcium
2.
Mostly made of carbon and hydrogen atoms, made by organisms, Proteins, Carbs, nucleic acids and lipids is an example of (a)
a)
Inorganic Molecule
b)
Organic Molecule
c)
Carbon Molecule
d)
None of the above
3.
which of the following are essential micronutrients
a)
sodium, potassium, iron and calcium
b)
carbs, lipids, protein, and nucleic acids
c)
carbon, hydrogen, o2, nitrogen, sulfur, and phos
d)
None of these
4.
A molecule that comes typically from environmental sources, examples are CO2 and H2o is an ______
a)
Organic Molecule
b)
Inorganic Molecule
c)
Amino Acids
d)
None if the above
5.
What is the name of all of the biochemical reactions in a cell?
a)
Phototroph
b)
Anabolism
c)
Metabolism
d)
None of the above
6.
What are the four metabolic classes depending on?
a)
heterotrophs
b)
Autotroph
c)
Chemotrophs & phototrophs, heterotrophs & autotrophs
d)
none of the above
7.
What is the name of a carbon source that uses organic compounds and light as energy
a)
Photochemotroph
b)
heterophotroph
c)
chemophototroph
d)
photoheterotroph
8.
What is the name of an organism that uses organic compounds as a carbon source
a)
Heterotroph
b)
Autotroph
c)
Chemotroph
d)
Phototroph
9.
What is the name of an organism that uses inorganic compounds as its carbon source
a)
Heterotroph
b)
Autotroph
c)
Chemotroph
d)
Phototroph
10.
What is the name of an organism that uses light for their energy source?
a)
Heterotroph
b)
Autotroph
c)
Chemotroph
d)
Phototroph
11.
What is the name of an organism that uses chemicals as an energy source?
a)
Heterotroph
b)
Autotroph
c)
Chemotroph
d)
Phototroph
12.
What is a Saprobe
a)
Utilizes fluids & Tissues of a live host, that lets other host do all the work
b)
Photosynthetic bacteria
c)
Decomposers
d)
Chemoautotroph
13.
What is a parasite
a)
Utilizes fluids & Tissues of a live host, that lets other host do all the work
b)
Photosynthetic bacteria
c)
Decomposers
d)
Chemoautotroph
14.
T or F
Every living thing needs a carbon source and has a category.
Every living thing needs a carbon source and has a category.
a)
True
b)
False
15.
______ The movement of any molecule, to an area where its concentration is lower
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Diffusion
16.
______ Higher concentration on the outside of a cell
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Diffusion
17.
______ Less concentration on the outside of a cell
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Diffusion
18.
______ Same concentration gradients on inside and outside of a cell
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Diffusion
19.
______ Water movement across a membrane
a)
None
b)
Solute
c)
Solvent
d)
Osmosis
20.
______. A Liquid that things can dissolve in
a)
Diffusion
b)
Solute
c)
Solvent
d)
Osmosis
21.
______ The thing that dissolves in the liquid
a)
Diffusion
b)
Solute
c)
Solvent
d)
Osmosis
22.
What type of cell division does microbial do
a)
Meiosis
b)
Mitosis
c)
Binary Fission
d)
None
23.
Type of diffusion/transport whereby a substance passes through a membrane without an aid
a)
Simple Diffusion
b)
Facilitated diffusion
c)
Active Transport
d)
None
24.
Type of diffusion/transport where substances are transported across cell membranes by protein carrier molecules
a)
Simple Diffusion
b)
Facilitated Diffusion
c)
Active Transport
d)
Osmosis
25.
The movement of ions or molecules across a cell membrane in the direction opposite of diffusion. (From an area of lower concentration to one of higher concentration)
a)
Simple Diffusion
b)
Facilitated Diffusion
c)
Active Transport
d)
Osmosis
26.
Define Exponential Growht
a)
The Growth rate of a population accelerates, nutrient full
b)
The rate accelerates then reaches maximum growth then rate slows down
c)
None
27.
Define Logistic Growth
a)
The Growth rate of a population accelerates, nutrient full
b)
The rate accelerates then reaches maximum growth then rate slows down
c)
None
28.
Stages of Microbial Growth
a)
Lag, stationary, exponential then death
b)
Exponential then Death
c)
None
d)
Lag, Exponential, Staitionary, then Death
29.
Define turbidity
a)
A machine that mixes test tubes full of n. broth and microbes
b)
nutrient broth that is cloudy with microbial growth
30.
What are the 4 key controlling factors to microbial growth
a)
Temp, pH, CO2, O2
b)
Temp, pH, H2O, O2
c)
Temp, pH, CO2, H2O
d)
Temp, pH,FAD, H2O
31.
Define Minimum, Temperature
a)
Lowest temp a microbial can grow without becoming microbistat
b)
Growth at a maximum rate
c)
Highest temp a microbialacan grow without becoming
32.
Define Optimum Temp
a)
Lowest a microbial can grow withMicrobiostatic
b)
Growth at a maximum rate
c)
Highest temp a microbial an grow withouMicrobiosidal
33.
Define maximum temp
a)
Microbiostatic
b)
Maximum Growth Rate
c)
Microbiosidal
34.
T or F
Acidophile prefer a ph below 7, Alkaliphile ph above 7, Neutrophile. Neutral pH
Acidophile prefer a ph below 7, Alkaliphile ph above 7, Neutrophile. Neutral pH
a)
F
b)
t
35.
Halophiles...
a)
15-30% NaCI
b)
Grow best in absence of of added salts but can tolerate some
c)
Requirement of 3% NaCI
d)
Unable to tolerate salts
36.
Extreme Halophiles...
a)
15-30% NaCI
b)
Grow best in absence of of added salts but can tolerate some
c)
3% NaCI
d)
Unable to tolerate sal
37.
___ Requires/tolerates O2
a)
Aerboe
b)
Anaerobe
c)
None
38.
___ doesn’t have enzymes that will deal with damage of O2
a)
Aerobe
b)
Anaerobe
39.
___ ____ Absolutly has to grow w/oxygen
a)
Facultative aerobe
b)
Obligate Aerobe
c)
Obligate Anaerobe
d)
Aerotolerant Anaerobe
40.
Growth w/ or w/out O2
a)
Facultative Aerobe
b)
Obligate Aerobe
c)
Obligate Anaerobe
d)
Aerotolerant Anaerobe
41.
Has to grow w/out O2
a)
Facultative Aerobe
b)
Obligate Aerobe
c)
Obligate Anaerobe
d)
Aerotolerant Anaerobe
42.
Doesn’t use O2 for energy production, but can survive exposure
a)
Facultative Aerobe
b)
Obligate Aerobe
c)
Obligate Anaerobe
d)
Aerotolerant Anaerobe
43.
T or F Microaerophilic can have small amounts of O2
a)
T
b)
F
44.
___ Every chemical reaction going into an organism
a)
Anabolism
b)
Catabolism
c)
Metabolism
d)
Amphibolic
45.
*Endorgonic
*Builds Larger Molecules from smaller molecules
*Builds Larger Molecules from smaller molecules
a)
Anabolism
b)
Catabolism
c)
Metabolism
d)
Amphibolic
46.
*Exorgonic
*Breaks molecules apart into smaller pieces
*Breaks molecules apart into smaller pieces
a)
Anabolism
b)
Catabolism
c)
Metabolism
d)
Amphibolic
47.
Couples exorgonic and endorgonic metabolic pathways
a)
Anabolism
b)
Catabolism
c)
Metabolism
d)
Amphibolic
48.
Is the Electron transport Chain the only place O2 is used
a)
Yes
b)
No
49.
Where does Glycolysis happen in prokaryotes
a)
Cytoplasm
b)
Periplasm & Cell Membrane
c)
Mitochondria
50.
Where does the Krebs Cycle take please in prokaryotes
a)
Cyotoplasm
b)
Periplasm & Cell Membrane
c)
Mitochondria
51.
Where doe the E.T.C take place in prokaryotes
a)
Cytoplasm
b)
Periplasm & Cell Membrane
c)
Mitochondria
52.
Which is untrue about bacterial chromosomes
a)
Chromosomes are condensed by his tone-like proteins
b)
Located in nucleoid
c)
Usually multiple chromosomes
d)
Circular
53.
Which has the smallest amount of DNA
a)
Human cell
b)
Viruses
c)
E. Coli
54.
Which of the above is true
a)
DNA A-T, C-G
RNA A-U, C-G
RNA A-U, C-G
b)
DNA T-G, A-C
RNA U-C, G-T
RNA U-C, G-T
c)
DNA A-U, C-G
RNA A-T, C-G
RNA A-T, C-G
55.
Which Best explains the Central Dogma of Molecular Biology
a)
RNA is translated into DNA then transcribed into only A.A
b)
DNA is translated into RNA then transcribed with ribosomes to make proteins
c)
DNA is transcribed into RNA then translated with ribosomes to make protein
d)
NOne
56.
mRNA is...
a)
A tool required for translation
b)
in transcribed to translate a protein
57.
What is Ribosomes made out of
a)
Catalase
b)
tRNA
c)
rRNA
58.
What is tRNA used for
a)
A tool required for translation
b)
used for transcription and translation
59.
What does the small subunit of the ribosome do
a)
Aligns the mRNA
b)
Connects tRNA to mRNA to find A.A codons
60.
What does the large subunit of the ribosome do
a)
Alighns mRNA
b)
Connects tRNA to mRNA to find A.A codons
61.
What does the A, P, E sites stand for
a)
Acceptor, Peptidyl, Entry
b)
Acceptor, Protein,Exit
c)
Absorbtion, Peptidyl, Exit
d)
Acceptor, Peptidyl, Exit
62.
What does the acceptor site do
a)
In the middle, Forms peptide bonds with the amino acids on the right
b)
On the very right, accepts tRNA with correct codons
c)
On the Left, exits proteins
63.
What does the Peptidyl site do
a)
In the middle, Forms peptide bonds with the amino acids on the right
b)
On the very right, accepts tRNA with correct codons
c)
On the Left, exits proteins
64.
How much ATP comes from fermentation
a)
1
b)
2
c)
3
d)
4
65.
Name of enzyme that builds DNA polymers
a)
DNA polymerase
b)
RNA polymerase
c)
Helicase
66.
Name of enzyme that makes copies of RNA
a)
DNA polymerase
b)
RNA polymerase
c)
Helicase
67.
Name of enzyme that unwinds DNA
a)
DNA polymerase
b)
RNA polymerase
c)
Helicase
68.
Does Transcription require DNA replication
a)
YES
b)
NO
69.
T or F
DNA replication is only prior to cell division
DNA replication is only prior to cell division
a)
T
b)
F
70.
Where does transcription take place in prokaryotes/eukaryotes
a)
cytoplasm/nucleus
b)
nucleoid/cytoplasm
c)
Periplasm/nucleus
d)
Cell membrane
71.
EUkaryotes has a RNA processing center, does prokaryotes
a)
YES
b)
NO
72.
2 types of gene transfer in prokaryotes
a)
Transcription, Translation
b)
NONE
c)
Vertical, Horizonal
73.
What is vertical gene transfer and how many types are there
a)
organism to offspring (1)
b)
donor to recipient (3)
74.
What is the horizontal gene transfer, and how many types are there?
a)
Organism to offspring (1)
b)
Donor to recipient (3)
75.
What kind of Horizonal Gene transfer is naked DNA left in the environment by dead cells, and some types of bacteria can pick it up. (Dead Donor)
a)
Transformation
b)
Transduction
c)
Conjugation
d)
none
76.
What kind of horizonal gene transfer are from viruses moving bacterial DNA from one cell to another (Dead Donor, from virus killing the cell)
a)
Transformation
b)
Transduction
c)
Conjugation
d)
None
77.
What kind of horizonal gene transfer uses pillus
a)
Transformation
b)
Transduction
c)
Conjugation
d)
None
78.
What kind of expirament was used in Transformation gene transfer
a)
John Stanley with Staphylococcus Epidermitis
b)
Fredrick Griffith with Streptococcus pneumoniae
c)
Fredrick Griffith with Staphylococcus Epidermitis
d)
John Stany with Streptococcus pneumoniae
79.
Which kind of microbial control destroys MOST microbial life, used on inanimate surfaces. Like disinfection desks
a)
Disinfection
b)
Antisepsis
c)
Decontamination
d)
Sterilization
80.
Which kind of control microorganism destroys most microbial life, used on a living surface like washing hands
a)
Disinfection
b)
Antisepsis
c)
Decontamination
d)
Sterilization
81.
Which kind of control microorganism is the mechanical removal of most microbes from living or inanimate surfaces. Like scrubbing
a)
Disinfection
b)
Antisepsis
c)
Decontamination
d)
Sterilization
82.
Which kind of controlling microoganism is the destruction of ALL microbial life used on inanimate objects
a)
Disinfection
b)
Antisepsis
c)
Decontamination
d)
Sterilization
83.
What does the prefix -cide mean?
a)
Slowed growth
b)
Died off, Denaturation
84.
What does the prefix -static mean?
a)
Killed off, denaturation
b)
Slowed growth
85.
What does the term degermation mean?
a)
state Of being free from pathogenic bacteria, fungi, and viruses and parasites
b)
A substance which inhibits growth and development of mucroorganisms
c)
reduces the number of microbes on the human skin (mechanical)
d)
Presence of bacteria & etc in the bloodstream & spread throughout the body
86.
What does the term Antiseptic mean?
a)
state Of being free from pathogenic bacteria, fungi, and viruses and parasites
b)
A substance which inhibits growth and development of mucroorganisms
c)
reduces the number of microbes on the human skin (mechanical)
d)
Presence of bacteria & etc in the bloodstream & spread throughout the body
87.
What does the word Asepsis mean?
a)
state Of being free from pathogenic bacteria, fungi, and viruses and parasites
b)
A substance which inhibits growth and development of mucroorganisms
c)
reduces the number of microbes on the human skin (mechanical)
d)
Presence of bacteria & etc in the bloodstream & spread throughout the body
88.
What does the word sepsis mean?
a)
state Of being free from pathogenic bacteria, fungi, and viruses and parasites
b)
A substance which inhibits growth and development of mucroorganisms
c)
reduces the number of microbes on the human skin (mechanical)
d)
Presence of bacteria & etc in the bloodstream & spread throughout the body
89.
___ Kills microbes then becomes bacteriocidal
___Slows growth, becomes bacteriostatic
___Slows growth, becomes bacteriostatic
a)
COLD/HEAT
b)
HEAT/COL
90.
How does physical and chemical agent interfere with the cell wall
a)
Denature Proteins-> loss of normal protein function
b)
Inhibit transcription/translation, DNA/RNA function-> interrupt supply of proteins
c)
Alter permeability-> cell unable to prevent loss/entry
d)
Block synthesis, break it down-> cell loses easily
91.
How does physical/chemical agents interfere with the cell membrane
a)
Denature Proteins-> loss of normal protein function
b)
Inhibit transcription/translation, DNA/RNA function-> interrupt supply of proteins
c)
Alter permeability-> cell unable to prevent loss/entry
d)
Block synthesis, break it down-> cell loses easily
92.
How does physical and chemical agents interfere with cell synthetic processes
a)
Denature Proteins-> loss of normal protein function
b)
Inhibit transcription/translation, DNA/RNA function-> interrupt supply of proteins
c)
Alter permeability-> cell unable to prevent loss/entry
d)
Block synthesis, break it down-> cell loses easily
93.
How does physical and chemical agents interfere with proteins?
a)
Denature Proteins-> loss of normal protein function
b)
Inhibit transcription/translation, DNA/RNA function-> interrupt supply of proteins
c)
Alter permeability-> cell unable to prevent loss/entry
d)
Block synthesis, break it down-> cell loses easily
94.
Which type of heat kills microbial faster?
a)
Dry Heat
b)
Moist Heat
95.
Which of the following are good examples of moist heat?
a)
Autoclave
b)
Pasteurization
c)
Boiling water
d)
All of the above
96.
Which of the following are good examples of Dry heat
a)
Autoclave
b)
Pasteuri
c)
Boiling wate
d)
Incineration
97.
T or F
Cold kills microbes; and cannot preserve cutures
Cold kills microbes; and cannot preserve cutures
a)
T
b)
F
98.
Define Desiccation
Hint: Microbiostatic
Hint: Microbiostatic
a)
dehydration of vegetative cells when directly exposed to normal room air
b)
A common method of moist heat control
99.
___ Electrons ejected from atoms-> bonds brea
a)
Ionizing Radiation
b)
Nonionizing Radiation
100.
___Exites atoms to form abnormal bonds
a)
Ionizing radiation
b)
Nonionizing radiation
101.
Which form of radiation is gamma-rays and x-ray
a)
Nonionizing Radiatio
b)
Ionizing Radiatio
102.
Whcih form of radiation is from ultraviolet ray
a)
Nonionizing Radiatio
b)
Ionizing Radiatio
103.
Which Fact is NOT true about Decontamination by filtration
a)
Effective for removing microbes from the air
b)
Pore size can be controlled and standerdized
c)
Non-effective for removing microbes from the air, but can liquid
104.
T or F
Chemical Agents in Microbial control mostly attack proteins, nucleic acids, cell walls and cell membrane
Chemical Agents in Microbial control mostly attack proteins, nucleic acids, cell walls and cell membrane
a)
T
b)
F
105.
a)
Gylcolysi
b)
Krebs Cycl
c)
Electron Transport Chai
d)
Fermentatio
106.
a)
Glycolysis
b)
Krebs Cycl
c)
Electron Transport Chain
d)
Fermentatio
107.
a)
Glycolys
b)
Krebs Cycl
c)
Electron Transport Cha
d)
Fermentatio
108.
a)
Glycolysis
b)
Krebs Cycl
c)
Electron Transport Chain
d)
Fermentati
109.
What is a Photoautotroph
a)
Energy source is light and carbon source if from inorganic compounds
b)
Energy source is chemicals and gets its carbon source from organic compounds
c)
Energy source is light and carbon source is organic compunds
d)
Energy source is chemicals and carbon source is inorganic compounds
110.
What is a photoheterotroph
a)
Energy source is light and carbon source if from inorganic compounds
b)
Energy source is chemicals and gets its carbon source from organic compounds
c)
Energy source is light and carbon source is organic compunds
d)
Energy source is chemicals and carbon source is inorganic compounds
111.
What is a chemoautotroph
a)
Energy source is light and carbon source if from inorganic compounds
b)
Energy source is chemicals and gets its carbon source from organic compounds
c)
Energy source is light and carbon source is organic compunds
d)
Energy source is chemicals and carbon source is inorganic compounds
112.
What is a chemoheterotroph
a)
energy Source is light and carbon source is inorganic compounds
b)
Energy source is chemical and carbon source is organic
c)
Energy source is light and carbon source is organic compounds
d)
Energy source is chemicals and carbon source is inorganic compounds
113.
In Microbial metabolism what are humans classified as?
a)
chemoautotrop
b)
Photoautotrop
c)
Chemoheterotrop
d)
Chemoautotroph
114.
What are all of the cell types
a)
F+, F-
b)
F+,F-,Hfr
c)
F+,F-,Hfr+,Hfr-
d)
A,B,AB,O
115.
WHich of theses facts are untrue regarding transformation
a)
Occurs naturally in few genes
b)
Picks up large pieces of DN
c)
Picks up small pieces of DN
d)
Compotent-> genetically determined
116.
Which of the following stages are UNTRUE regarding transduction
a)
During synthesis bacterial DNA is broken into small piece
b)
During Viral assembly any DNA can be placed in a viral capsid
c)
Viruses w/ bacterial DNA cause transductio
d)
Viruses continue on virusin
117.
Which of the following is UNTRUE regarding conjugation
a)
Opillus is only located in chromosomes
b)
Have to have a gene for making a pillu
c)
Direct cell to cell conta
d)
Opposite mating cell type
118.
Which of the following stages UNTRUE about glycolysis
a)
Start with glucose,
b)
invest 2 ATP to make activated gluco
c)
Harvest energy
d)
End result is Acetyl CoA
119.
Which of the following is UNTRUE regarding stages of the krebs cycl
a)
Pyruvate (3c) is covered to Acetyl CoA
b)
After Acetyl CoA is converted into a 3 carbon molecul
c)
Molecules are then decarbonized into the end resul
d)
End result is 3 CO2, NADH,FADH2, AT
120.
Which of the following is untrue regarding Fermentatio
a)
Lack of oxygen, ETC stops because no oxygen to remove e
b)
NADH or FADH2 remain loaded with electrons, THe cell runs out of NAD or FAD
c)
Glycolysis & Krebs cycle stops because lack of NAD and FA
d)
Glycolysis never continues
121.
T or F
Muscle cells capable of fermentation, and make an acid when working out aggresively
Muscle cells capable of fermentation, and make an acid when working out aggresively
a)
T
b)
F
122.
What is the point of fermentation
a)
Everytime you make alcohol/Acid it needs NADH->NAD SO it can restart glycolysis
b)
To generate carbohydrates
c)
TO make FA
123.
What is ATP’s full name
a)
Adeninine Triphosphat
b)
Anabolism Triphosphate
c)
Adenosine Triprotein
d)
Adenosine Triphosphat
124.
Energy from NADH is similar to FADH2 regarding electron
a)
T
b)
F
125.
ATP energy comes from a phosphate breaking odd of the ch
a)
T
b)
F
126.
What are the three types of phosphorylation reaction
a)
substrate-level, photo-and oxidative phosphorylatio
b)
glycolysis, Krebs cycle, and etc
c)
amphibolism, anabolism, catabolism
127.
Any process or agent that inhibits microbial growth is referred to a
a)
microbistatic
b)
Microbicidal
128.
____ is a decontamination technique that mechanically removes microorganisms from inanimate objects such as utensils to reduce contamination to safe levels
a)
Disinfecctio
b)
Sterilizaton
c)
Sanitatio
d)
antisepsis
129.
Which of the following should NOT be considered when initially choosing a method of microbial control?
a)
Can it withstand chemiCal treatments? Will it penetrate efficiently?
b)
Is it safe? Is it cost and labor efficient?
c)
Is sterilization needed? Is the item reusable or disposable
d)
Are the cells in the culture old or new? WHat is the temperature and pH of the environment?
130.
Which of the following are NOT examples of physical agents or mechanical means used to control microbes?
a)
Radiation & Filtration
b)
Heat & Cold
c)
Phenolic & Germici
131.
A ____ is an agent that can destroy bacterial endoscopes?
a)
Disinfectio
b)
Sporoci
c)
Virocid
d)
Bacteriosid
132.
Sepsis is defines as:
a)
grows of microorganisms in the water suppl
b)
death Of tissue due to microbial growth
c)
Growth of microorganisms in the blood or other tiss
d)
death of cells due to microbial grow
133.
A process that completely removes or destroys ALL. Viable microorganisms, including viruses, from an object or habitat is referred to a
a)
Sterilization
b)
Disinfection
134.
____Involves the transfer of DNA via bacteriophage
a)
Transduction
b)
Transformatio
c)
Conj
135.
An anabolic reaction is a chemical reaction that requires Ene
a)
T
b)
F
136.
A gene is best defines as
a)
A DNA sequence specifying a protein (via mRNA) a tRNA or a rRNA
b)
An RNA sequence
c)
A protein product encoded by DNA
d)
A DNA sequence
137.
During the ELectron Transport chain H+ accumulates in the cell membrane
a)
T
b)
F
138.
Eukaryotes have 2 copies of each type of chromosome which makes them...
a)
Diploid
b)
Haploid
139.
Prokaryotes have no copies of chromosomes which makes th
a)
Diploid
b)
Haploid
140.
Cell Respiration
a)
Usually begins w/ glycolyid
b)
Involves the formation of ATP via the ETC in non phototroph
c)
occurs when a compound containing phosphate reacts with ADP to form AT
141.
Oxidative phosphorylation
a)
Usually begins with glycolys
b)
Involves the formation of ATP via the ETC in non phototroph
c)
occurs when a compound containing phosphate reacts with ADP to form AT
142.
Substrate level phosphorylatio
a)
Usually begins with glycol
b)
Involves the formation of ATP via the ETC in non phototroph
c)
occurs when a compound containing phosphate reacts with ADP to form AT
143.
Plasmids contain genes that confer no advantages to the cell
a)
T
b)
F
144.
A microbe growing in a functioning refrigerator is probably a _____
a)
Mesophil
b)
THermoph
c)
Extreme thermophi
d)
Psychrophile
145.
DNA replication is always the first step before a cell can proceed to transcription
a)
T
b)
F
146.
All of the following make RNA different from DNA except
a)
RNA contains cystosin
b)
In RNA ribose sugar instead of deoxyribo
c)
RNA is normally singl
d)
RNA contains Ura
147.
A cell in a hypotonic environment will ____ by osmosis
a)
Gain water
b)
Lose water
c)
Cell lysis
148.
Mrna is formed by translation of a gene on the DNA template stran
a)
T
b)
F
149.
Mrna is formed by translation of a gene on the DNA template stran
a)
T
b)
F
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