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You Isolate an Infectious Substance That Is Capable of Causing

question 22

Multiple Choice

You isolate an infectious substance that is capable of causing disease in plants,but you do not know whether the infectious agent is a bacterium,virus,or prion.You have four methods at your disposal that you can use to analyze the substance in order to determine the nature of the infectious agent.
I.Treat the substance with nucleases that destroy all nucleic acids and then determine whether it is still infectious.
II.Filter the substance to remove all elements smaller than what can be easily seen under a light microscope.
III.Culture the substance by itself on nutritive medium,away from any plant cells.
IV.Treat the sample with proteases that digest all proteins and then determine whether it is still infectious.
If you already knew that the infectious agent was either bacterial or viral,which treatment listed above would allow you to distinguish between these two possibilities?

Definitions:

Linear Processes

Systems or sequences of actions where the output or effect is directly proportional to the input, often characterized by a straightforward progression from cause to effect.

Nursing Diagnosis

A clinical judgment about individual, family, or community experiences/responses to actual or potential health problems/life processes, used by nurses to guide patient care.

Medical Diagnosis

Medical Diagnosis is the process of determining which disease or condition explains a person's symptoms and signs, often involving various diagnostic tests.

Health Problem

Any condition that affects an individual's physical, mental, or social well-being.