Portage Microbiology Final Exam Questions and Answers
Updated
Question 1
Match each of the following organelles with the correct description.
Ribosomes
nucleus
cytoplasm
lysosomes
Correct Answer
Ribo - funtion in protein synthesis
nucleus - contains genomic content
cyto - constitutes the open volume
lyso - contains hydrolytic enzymes
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,Question 2
Briefly explain how a Scanning Electron Microscope (SEM) forms an
image of subcellular organelles, substrates, and viral particles.
Correct Answer
An image is formed from the interactions of electrons
as they reflect off (not through) the surface of the specimen.
Samples are coated in either gold or palladium to enhance
electron reflections. The reflection is seen in 3-D rendering.
OR
A scan (image) as electrons reflect off surfaces of a specimen loaded into the machine. In order for this to best
work, any sample is coated in gold or other refractive material to enhance reflections. SEM is shown in 3-D
Page 2 of 21
, Question 3
Match each of the following organelles with the correct description.
Nucleus
Endoplasmic Reticulum
Lysosomes
Chloroplasts
Correct Answer
Nucleus - Contains genomic content of the cell
Endoplasmic Reticulum - Series of membrane-enclosed sacs and interconnected tubes
Lysosomes - Contain hydrolytic enzymes capable of degrading unwanted cellular debris
Chloroplasts - Site of photosynthesis
Question 4
Match each of the following diseases to the correct bacterial family.
Scalded Skin Syndrome
Bubonic PLague
Opthalmia Neonatorium
Legionnaires
Correct Answer
Scalded Skin Syndrome - Staph Aureus
Bubonic Plague - Yersina Pestis
Opthalmia Neonatorium - Staphylococcus
Legionnaires - Legionella
Page 3 of 21
Updated
Question 1
Match each of the following organelles with the correct description.
Ribosomes
nucleus
cytoplasm
lysosomes
Correct Answer
Ribo - funtion in protein synthesis
nucleus - contains genomic content
cyto - constitutes the open volume
lyso - contains hydrolytic enzymes
Page 1 of 21
,Question 2
Briefly explain how a Scanning Electron Microscope (SEM) forms an
image of subcellular organelles, substrates, and viral particles.
Correct Answer
An image is formed from the interactions of electrons
as they reflect off (not through) the surface of the specimen.
Samples are coated in either gold or palladium to enhance
electron reflections. The reflection is seen in 3-D rendering.
OR
A scan (image) as electrons reflect off surfaces of a specimen loaded into the machine. In order for this to best
work, any sample is coated in gold or other refractive material to enhance reflections. SEM is shown in 3-D
Page 2 of 21
, Question 3
Match each of the following organelles with the correct description.
Nucleus
Endoplasmic Reticulum
Lysosomes
Chloroplasts
Correct Answer
Nucleus - Contains genomic content of the cell
Endoplasmic Reticulum - Series of membrane-enclosed sacs and interconnected tubes
Lysosomes - Contain hydrolytic enzymes capable of degrading unwanted cellular debris
Chloroplasts - Site of photosynthesis
Question 4
Match each of the following diseases to the correct bacterial family.
Scalded Skin Syndrome
Bubonic PLague
Opthalmia Neonatorium
Legionnaires
Correct Answer
Scalded Skin Syndrome - Staph Aureus
Bubonic Plague - Yersina Pestis
Opthalmia Neonatorium - Staphylococcus
Legionnaires - Legionella
Page 3 of 21
