Water: Practice Questions

• a.

  Air-conditioned environment, light desk work, and a low-protein diet

• b.

  Low ambient temperature, sedentary activity, and a high-water fruit diet

• c.

  High ambient temperature, vigorous physical activity, and a high-protein diet

• d.

  High ambient humidity, resting state, and a low-sodium diet

• a.

  To prevent the development of hypertension

• b.

  To increase the rate of digestion of complex carbohydrates

• c.

  To replace fluids lost through perspiration to regulate body temperature

• d.

  To ensure the absorption of fat-soluble vitamins

• a.

  Loss of water causes instant coagulation of haemoglobin, preventing cellular respiration in skeletal muscles

• b.

  Increased blood volume dilutes electrolytes, causing excessive perspiration that leads to severe hypothermia

• c.

  Extracellular fluid shifts into fat tissue, leading to an abrupt cessation of glycogen breakdown in the liver

• d.

  Decreased blood volume reduces sweat production, impairing evaporative cooling and leading to a critical rise in core body temperature

• a.

  Regulating core body temperature through the evaporation of sweat

• b.

  Providing a direct substrate for the synthesis of adenosine triphosphate (ATP)

• c.

  Serving as a structural component for the calcification of bones and teeth

• d.

  Acting as an emulsifying agent to break down dietary triglycerides in the stomach

• a.

  A resting metabolic state during sleep in a cool, air-conditioned room

• b.

  Low ambient temperature and a sedentary lifestyle

• c.

  Consumption of a diet extremely low in dietary fibre and rich in simple sugars

• d.

  High ambient temperature combined with vigorous physical activity

Write your answer out first, then check it against the worked solution.

Write your answer out first, then check it against the worked solution.

Write your answer out first, then check it against the worked solution.