Micro Final Exam Portage Learning | Questions
and Correct Answers Verified 100% | Latest
Update
The process of photophosphorylation produces which of the following: select all
that apply.
NADPH
H20
ATP
CO2
Glyceraldehyde-3-phosphate - ANSWER -NADPH
ATP
In phosphorylation, the light reactions always occur where? - ANSWER -
Membrane
True or False: The Calvin cycle must occur in the absence of light. - ANSWER -
False
True or False: The distinguishing characteristic of Gram-Negative bacteria is the
presence of LPS in the outer membrane. - ANSWER -True
True or False: If you wish to study the motility of an organism you cannot heat
fix, but you can chemically fix the specimen. - ANSWER -False both heat and
chemical will kill the cell
You want to observe the size and shape of a cell. What is the easiest staining
technique that you could perform? Name at least one dye you would use during
this process. - ANSWER -Simple stain and I would use crystal violet
You suspect a patient may have TB. Once a sample has been obtained, it is sent
off to the lab for an acid-fast stain. If the patient were infected with TB, describe
, what you would expect to see on the stained slide. - ANSWER -Red Cells on a
blue background
True or False: A Giemsa stain can be used to determine the presence of pathogenic
bacteria. - ANSWER -True
Identify what type of electron microscope was used to capture the following image
and explain your choice (A). - ANSWER -Transmission Electron Microscope
(TEM)
This shows a 2D image of the internal structure, which is only shown by TEM.
Identify what type of electron microscope was used to capture the following image
and explain your choice (B). - ANSWER -Scanning electron microscope and we
can tell based on the trademark shell that is shown in the 20 nm image.
True or False. The purpose of a quadrant streak is to produce individual colonies
of a bacterial population. - ANSWER -True
A dilution gradient is formed when carrying out what generalize plating strategy?
- ANSWER -Phase-Dilution streak
In what phase of a dilution streak would you expect to find the highest
concentration of bacteria, P2 or P4? - ANSWER -P2
True or False. When performing a dilution streak a new (or sterilized) loop is not
required for each phase as long as the bacterial culture is pure. - ANSWER -False
The number of phases (3 vs. 4) and/or the number of times a loop passes through a
previous phase (once vs. multiple times) is acceptable provided what happens? -
ANSWER -The resulting gradient has in it the growth of individual colonies.
True or False. To restrict the growth of a pathogenic microbe a researcher might
decrease an incubator from 37°C to 25°C. - ANSWER -True
and Correct Answers Verified 100% | Latest
Update
The process of photophosphorylation produces which of the following: select all
that apply.
NADPH
H20
ATP
CO2
Glyceraldehyde-3-phosphate - ANSWER -NADPH
ATP
In phosphorylation, the light reactions always occur where? - ANSWER -
Membrane
True or False: The Calvin cycle must occur in the absence of light. - ANSWER -
False
True or False: The distinguishing characteristic of Gram-Negative bacteria is the
presence of LPS in the outer membrane. - ANSWER -True
True or False: If you wish to study the motility of an organism you cannot heat
fix, but you can chemically fix the specimen. - ANSWER -False both heat and
chemical will kill the cell
You want to observe the size and shape of a cell. What is the easiest staining
technique that you could perform? Name at least one dye you would use during
this process. - ANSWER -Simple stain and I would use crystal violet
You suspect a patient may have TB. Once a sample has been obtained, it is sent
off to the lab for an acid-fast stain. If the patient were infected with TB, describe
, what you would expect to see on the stained slide. - ANSWER -Red Cells on a
blue background
True or False: A Giemsa stain can be used to determine the presence of pathogenic
bacteria. - ANSWER -True
Identify what type of electron microscope was used to capture the following image
and explain your choice (A). - ANSWER -Transmission Electron Microscope
(TEM)
This shows a 2D image of the internal structure, which is only shown by TEM.
Identify what type of electron microscope was used to capture the following image
and explain your choice (B). - ANSWER -Scanning electron microscope and we
can tell based on the trademark shell that is shown in the 20 nm image.
True or False. The purpose of a quadrant streak is to produce individual colonies
of a bacterial population. - ANSWER -True
A dilution gradient is formed when carrying out what generalize plating strategy?
- ANSWER -Phase-Dilution streak
In what phase of a dilution streak would you expect to find the highest
concentration of bacteria, P2 or P4? - ANSWER -P2
True or False. When performing a dilution streak a new (or sterilized) loop is not
required for each phase as long as the bacterial culture is pure. - ANSWER -False
The number of phases (3 vs. 4) and/or the number of times a loop passes through a
previous phase (once vs. multiple times) is acceptable provided what happens? -
ANSWER -The resulting gradient has in it the growth of individual colonies.
True or False. To restrict the growth of a pathogenic microbe a researcher might
decrease an incubator from 37°C to 25°C. - ANSWER -True
