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Questions from Chemistry and Physiology

4.2

A 55-year-old woman visits a popular eatery for lunch. She orders a cheese and bacon pizza with extra cheese and has about 3 large glasses of cola (ph value 3). On the way back home, she experiences heartburn and abdominal pain, and has difficulty breathing. She drinks a lot of water and has to consume milk of magnesia (pH value 10.5) before she feels comfortable again.
Classify the liquids that she has consumed as acidic or alkaline.
State the pH values of water and blood.
State what the patient can include and avoid in her diet on a regular basis to avoid these symptoms in the future.

5.2

At a prominent state hospital, a 45-year-old woman is receiving a 'combined modality' treatment for the initial stage of breast cancer. State the two aspects included in this treatment. State the methods by which a radiation oncologist can administer these therapies. Additionally, state four major differences between the two modes of treatment.

6.2

The Managing Director of a well-known company on Wall Street thrives on a diet of fruit jam, bread, pasta, and coffee. She exercises intermittently. One day she decides to go to her primary healthcare provider for a routine checkup. The healthcare provider recommends that she take the Benedict's test. Assume that the glucose levels of the patient are high.
State the results that the test would indicate (specify the color of the solution).
State the composition and the properties of the ketohexose derived from fruit jam.
Describe the manner in which ketohexose acts as a reducing sugar in the test.

10.2

A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps.
Explain the chemical process that occurred in his muscle cells to cause this discomfort.
Explain the chemical reactions that have possibly taken place in his body after the exercise.
Discuss possible treatments for the freshman and how the treatment works chemically.

Solution Preview

A 55-year-old woman visits a popular eatery for lunch. She orders a cheese and bacon pizza with extra cheese and has about 3 large glasses of cola (ph value 3). On the way back home, she experiences heartburn and abdominal pain, and has difficulty breathing. She drinks a lot of water and has to consume milk of magnesia (pH value 10.5) before she feels comfortable again.
a) Classify the liquids that she has consumed as acidic or alkaline.
b) State the pH values of water and blood.
c) State what the patient can include and avoid in her diet on a regular basis to avoid these symptoms in the future.

4.2a) pH value 3 is acidic

b) Absolutely pure water has a pH of 7. In reality, some amount of CO2 is dissolved in water, forming carbonic acid and lowering the pH slightly, but this can vary, so it is useless to try and state exactly. Blood pH is around 7.4

c) Avoiding acidic foods in the future and including more dairy products and water instead of soda may help her avoid those symptoms.

5.2

At a prominent state hospital, a 45-year-old woman is receiving a 'combined modality' treatment for the initial ...

Solution Summary

In this solution we consider 4 broad questions that are commonly encountered in introductory courses, touching on a wide range of topics. This includes the notion of combined modality for breast cancer, the use of Benedict's test to infer glucose levels in a patient, and many other concepts are covered. 2 outside resources for the Benedict's test question are included.

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