Question: Which of the following represents a chemical substance that is produced and secreted by microorganisms that inhibits or kills other microorganisms (including pathogenic microorganisms)?

Answer Options:
Antiseptic
Disinfectant
Antibiotic

Answer: Antibiotic

Question: Lipids that act as storage molecules in cells are called:

Answer Options:
Wax
Triglycerides
Phospholipids
Peptidoglycan
Glycogen

Answer: Triglycerides

Question: Which of the following viruses does NOT have an animal (non-human) vector?

Answer Options:
Zika
Hantavirus
Rabies
Smallpox

Answer: Smallpox

Question: Protozoa can exist in both cyst and trophozoite forms.

Answer Options:
True
False

Answer: True

Question: Which type of eukaryotic microbe has two sets of nuclei, one for general cell function and one for sexual reproduction?

Answer Options:
Fungi
Kinetoplastids
Apicomplexans
Ciliates
Stramenopiles

Answer: Ciliates

Question: An oncogenic viral infection is one during which a virus:

Answer Options:
Produces reverse transcriptase
Induces cancerous tumor formation
Does not produce a capsid
Produces a chronic infection

Answer: Induces cancerous tumor formation

Question: What enzyme breaks down starch?

Answer Options:
β-Galactosidase
Glucoamylase
Amylase
Disaccharidase

Answer: Amylase

Question: A positive catalase test result would depict [blank] production due to release of oxygen.

Answer: bubble

Question: The production of antibiotics by the fungus Penicillium chrysogenum is considered which type of symbiotic relationship?

Answer Options:
Mutualism
Commensalism
Amensalism
Parasitism

Answer: Mutualism

Question: Please answer parts A-C in reference to depicted microscope lens features. A. The total magnification of this microscope is _____ x. B. The limit of resolution of this microscope (assuming the wavelength is 255 nm) is _____ nm. Provide with correct unit. C. If two cells are 90 nm apart, they will appear _____.

Answer: A. 1000x
B. 170 nm
C. blurred

Question: ______ medium designed to permit the growth of a particular organism while inhibiting the growth of others.

Answer Options:
Complex
Defined
Differential
Selective

Answer: Selective