Hydration and Human Physiology Quiz

What event led the speaker to focus more on hydration?

• A fitness challenge

• A medical diagnosis

• A fall caused by dehydration

• A racing accident

What percentage of an adult's body is water?

• 50%

• 60%

• 70%

• 80%

What is the primary component of intracellular fluid?

• Plasma

• Water

• Proteins

• Electrolytes

What percentage of the extracellular fluid is plasma?

• 50%

• 33%

• 67%

• 25%

How does the water content in muscle tissue compare to fat tissue?

• Fat has more water

• Muscle has less water

• Muscle and fat have equal water content

• Muscle has more water

What does tonicity refer to?

• The concentration gradient between solutions

• The thickness of a fluid

• The color of a fluid

• The temperature of a fluid

What happens to cells in a hypertonic solution?

• They multiply

• They swell

• They shrink

• They dissolve

What is the effect of a hypotonic solution on cells?

• Cells gain water

• Cells lose water

• Cells remain unchanged

• Cells divide

What causes cells to rupture in a hypotonic solution?

• Exposure to heat

• Plasma leakage

• Loss of electrolytes

• Influx of water

What is the primary reason for the body's water distribution changes when sick?

• Electrolyte imbalance

• Increased plasma production

• Expansion of the interstitial space

• Dehydration