Explain why fluid and electrolyte balance is critical for human health.
Fluid and electrolyte balance is essential for maintaining normal hydration, nerve impulses, muscle contraction, blood pressure, and overall cellular function.
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10
Which part of an amino acid gives each one its unique chemical properties?
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15
Enzymes are a part of which macromolecule group?
proteins
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Why is it important that some radioisotopes used in diagnostic imaging have short half-lives?
Short half-lives are important because the radioisotopes decay quickly, minimizing radiation exposure to the patient while still providing enough time to produc
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15
Why are buffers critical in the human body?
Buffers are critical because they maintain a stable pH in body fluids, which is essential for enzyme function, chemical reactions, and overall cellular health.
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15
Explain why waterâs cohesion is important for processes like capillary action in plants or blood flow in humans.
Cohesion allows water molecules to stick together, helping it move through narrow vessels and tubes efficiently.
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10
Which statement about hydrogen bonds is FALSE?
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10
Which statement about lipids is TRUE?
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10
The process that breaks down polymers into monomers by adding water is called ____________.
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15
Explain the difference between kinetic and potential energy and give an example of each in the human body.
PE is stored energy, such as the energy in ATP or chemical bonds in glucose. KE is energy in motion, such as muscle contraction or nerve impulses that use ATP
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10
Which type of lipid is most important in cell membrane structure?
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10
A solution with a pH of 8 is _____________________.
