Portage Microbiology Final Exam
Question With Well Elaborated Solutions
Adenine to Uracil
Guanine to Cytosine
List the 4 nitrogen bases in RNA and describe how they pair with one another
TRUE - Alpha hemolysis presents as a greenish-brown color due to partial lysis of
red blood cells.
True or False. If the statement is false, change it to make it true.
When grown on Blood Agar Plates (BAP), microbes capable of alpha hemolysis
present as greenish-brown color colonies due to incomplete (partial) lysis of red
blood cells.
FALSE - Gamma-hemolysis designate the absence....
True or False. If the statement is false, change it to make it true.
When grown on Blood Agar Plates (BAP), microbes capable of delta hemolysis
designate the absence or lack of hemolytic activity and the resulting colonies are
often white/tan in color growing on the red background of the unaffected BAP
present as greenish-brown color colonies due to incomplete (partial) lysis of red
blood cells
The net gain is 4 ATP
,Each of the following statements about glycolysis is true, except:
- Reactants include glucose, NAD, and ATP
- 2 molecules of ATP are required as reactants
- The net gain is 4 ATP
- Products include pyruvate, NADH, ATP, and H+
it does not produce atp
Each of the following statements about respiration are true, except:
- it is an aerobic process
- it does not produce atp
- it produces NADH and FADH2 in abundance
-the central cycle is called the tricarboxylic acid cycle
Lytic bacteriophages replicate within the host bacteria until it ruptures, whereas
temperate (or lysogenic) phages primarily exist in a non-replicative state that
does not kill the host cell.
Describe the ONE main differences between lytic and temperate phages.
1. it replicates in the host cell until the host ruptures
2. it replicates all proteins that it needs to assemble new virus particles describe
TWO main characteristics of LYTIC bacteriophage replication
, Vibrio
Bacteria that have a curved rod morphology are referred to as ______.
A wet mount stain is indicated. A small liquid culture (usually just a drop)
containing a microorganism of interest is prepared, added to a slide, and then
covered with a glass coverslip. The coverslip is present to both protect the
objective and the specimen while also holding the microorganism in place. Wet
mounts are used to observe the motility and behavior of an organism.
You want to observe the movement of microorganisms that are present in a
sample of cheek cells obtained on a patient. Briefly explain the technique that you
would use and how it is performed.
it uses a solution of positively charged dye, which binds to and stains the
negatively changed membrane of the microorganism.
This technique can show size, shape, and arrangement of cells
briefly explain why a researcher would use the simple stain technique. How is it
preformed and what does it identify
2003: SARS
2020: Covid-19
What coronavirus-associated infection gave rise to quarantining and travel
restrictions in 2003?
Question With Well Elaborated Solutions
Adenine to Uracil
Guanine to Cytosine
List the 4 nitrogen bases in RNA and describe how they pair with one another
TRUE - Alpha hemolysis presents as a greenish-brown color due to partial lysis of
red blood cells.
True or False. If the statement is false, change it to make it true.
When grown on Blood Agar Plates (BAP), microbes capable of alpha hemolysis
present as greenish-brown color colonies due to incomplete (partial) lysis of red
blood cells.
FALSE - Gamma-hemolysis designate the absence....
True or False. If the statement is false, change it to make it true.
When grown on Blood Agar Plates (BAP), microbes capable of delta hemolysis
designate the absence or lack of hemolytic activity and the resulting colonies are
often white/tan in color growing on the red background of the unaffected BAP
present as greenish-brown color colonies due to incomplete (partial) lysis of red
blood cells
The net gain is 4 ATP
,Each of the following statements about glycolysis is true, except:
- Reactants include glucose, NAD, and ATP
- 2 molecules of ATP are required as reactants
- The net gain is 4 ATP
- Products include pyruvate, NADH, ATP, and H+
it does not produce atp
Each of the following statements about respiration are true, except:
- it is an aerobic process
- it does not produce atp
- it produces NADH and FADH2 in abundance
-the central cycle is called the tricarboxylic acid cycle
Lytic bacteriophages replicate within the host bacteria until it ruptures, whereas
temperate (or lysogenic) phages primarily exist in a non-replicative state that
does not kill the host cell.
Describe the ONE main differences between lytic and temperate phages.
1. it replicates in the host cell until the host ruptures
2. it replicates all proteins that it needs to assemble new virus particles describe
TWO main characteristics of LYTIC bacteriophage replication
, Vibrio
Bacteria that have a curved rod morphology are referred to as ______.
A wet mount stain is indicated. A small liquid culture (usually just a drop)
containing a microorganism of interest is prepared, added to a slide, and then
covered with a glass coverslip. The coverslip is present to both protect the
objective and the specimen while also holding the microorganism in place. Wet
mounts are used to observe the motility and behavior of an organism.
You want to observe the movement of microorganisms that are present in a
sample of cheek cells obtained on a patient. Briefly explain the technique that you
would use and how it is performed.
it uses a solution of positively charged dye, which binds to and stains the
negatively changed membrane of the microorganism.
This technique can show size, shape, and arrangement of cells
briefly explain why a researcher would use the simple stain technique. How is it
preformed and what does it identify
2003: SARS
2020: Covid-19
What coronavirus-associated infection gave rise to quarantining and travel
restrictions in 2003?
