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Tutor profile: Shelby M.

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Shelby M.
Biological Sciences Instructor
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Questions

Subject: Biomedical Science

TutorMe
Question:

Explain why doctors may prefer to test for disease antigens rather than antibodies during an outbreak.

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Shelby M.
Answer:

If an individual is exposed to a novel pathogen during an outbreak and has not conferred immunity, the antigens will be detected first. This is due to the body's adaptive immune response requiring time to produce antibodies that can fight the antigens of the pathogen.

Subject: Basic Chemistry

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Question:

Visualizing the structural formula for the hydrocarbon C2H4, what type of bond exists between the two carbons in this molecule?

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Shelby M.
Answer:

A double bond exists between the two carbons in this molecule. Carbon has a valence of 4, which means that carbon must form four covalent bonds. Each carbon is single-bonded to two hydrogens and double-bonded to each other.

Subject: Biology

TutorMe
Question:

What is the metabolic consequence of an oxygen deficiency in muscle cells?

Inactive
Shelby M.
Answer:

An oxygen deficiency would result in a buildup of lactic acid in the muscle cells and tissue due to lactic acid fermentation. This form of fermentation would also lead to lactic acid building up in the blood, decreasing the pH.

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