CMB201 Exam 1
1. louis pasteurs famous experiment started with him boiling a broth solution in a swan neck flask.
which of the following was a result he observed after boiling the broth?: breaking off the swan neck
flask resulted in the appearance of microbes in the broth
2. which molecule is unique to gram positive bacteria?: teichoic acid
3. a network of hyphae is collectively referred to as a: mycelium
4. tropism is defined as: the range of cells/ tissues that a virus can infect with the host
5. is the process by which environmental DNA is taken up into the cytoplasm of
competent bacteria: transformation
6. After exposure to radiation, the second codon of a gene mutated from UAC to UAG (coding it
to stop) This is an example of a
mutation: nonsense
7. which of the following is an example of enzyme regulation caused by competitive inhibition?: an
antibiotic binds to the active cite of the first enzyme of a phospholipid synthesis pathway and
prohibits the natural substrate from binding, which shuts off the pathway
8. an oncogenic virus can cause transformation of the infected host cell, resulting in cancer:
true
9. certain types of gram positive bacteria can make a dormant form that is resistant to heat,
radiation and antibiotics. this is called a: endospore
10.DNA replication in bacteria : is classified as semi-conserva- tive
11.which of the following correctly ranks items in order from largest to small- est: grain of rice >
human skin cell > bacteria > virion > glucose molecule
12.a 10-year-old boy named akal arrived at the local clinic complaining of profuse diarrhea and
lack of energy. in addition, he showed visible signs
of dehydration. the medical staff collected a stool specimen and performed a gram stain. using the
microscope, the medical lab scientist viewed the
sample and observed cylindrical bacterial stells that were stained pink. which of the following
statements is true regarding this organism?: it would be best described as a bacillus
13.during which phase of the growth curve are the bacteria not growing due to the accumulation of
waste products and depletion of available nutrients?-
: stationary phase
14.aerobic respiration yields more ATP per molecule of glucose compared to anaerobic respiration:
true
15.how many hydrogen bonds are there in DNA base pair consisting of adenine and
thymine?: 2
1/
3
1. louis pasteurs famous experiment started with him boiling a broth solution in a swan neck flask.
which of the following was a result he observed after boiling the broth?: breaking off the swan neck
flask resulted in the appearance of microbes in the broth
2. which molecule is unique to gram positive bacteria?: teichoic acid
3. a network of hyphae is collectively referred to as a: mycelium
4. tropism is defined as: the range of cells/ tissues that a virus can infect with the host
5. is the process by which environmental DNA is taken up into the cytoplasm of
competent bacteria: transformation
6. After exposure to radiation, the second codon of a gene mutated from UAC to UAG (coding it
to stop) This is an example of a
mutation: nonsense
7. which of the following is an example of enzyme regulation caused by competitive inhibition?: an
antibiotic binds to the active cite of the first enzyme of a phospholipid synthesis pathway and
prohibits the natural substrate from binding, which shuts off the pathway
8. an oncogenic virus can cause transformation of the infected host cell, resulting in cancer:
true
9. certain types of gram positive bacteria can make a dormant form that is resistant to heat,
radiation and antibiotics. this is called a: endospore
10.DNA replication in bacteria : is classified as semi-conserva- tive
11.which of the following correctly ranks items in order from largest to small- est: grain of rice >
human skin cell > bacteria > virion > glucose molecule
12.a 10-year-old boy named akal arrived at the local clinic complaining of profuse diarrhea and
lack of energy. in addition, he showed visible signs
of dehydration. the medical staff collected a stool specimen and performed a gram stain. using the
microscope, the medical lab scientist viewed the
sample and observed cylindrical bacterial stells that were stained pink. which of the following
statements is true regarding this organism?: it would be best described as a bacillus
13.during which phase of the growth curve are the bacteria not growing due to the accumulation of
waste products and depletion of available nutrients?-
: stationary phase
14.aerobic respiration yields more ATP per molecule of glucose compared to anaerobic respiration:
true
15.how many hydrogen bonds are there in DNA base pair consisting of adenine and
thymine?: 2
1/
3
