acid-base 1

Which of the following is TRUE about acids?

• Molecules that are capable of combining with hydrogen ions

• Molecules that can liberate hydrogen ions.

• can reduce the hydrogen ion concentration.

• bicarbonate is an example of a biologically strong acids.

If the pH of arterial blood drops below the average value of 7.4, the resulting condition is termed __________.

• acidosis

• alkalosis

• normal pH

• Normolosis

Alkalosis is results from a loss of acids and an accumulation of bases.

• True

• False

What happens when the pH level in muscles drops due to acidosis?

• Muscle fatigue is delayed, and endurance increases.

• Enzyme activity improves, increasing energy production.

• Muscle contraction strength decreases, leading to fatigue.

• Oxygen requirements for muscles decrease.

Why is acid-base balance important for exercise performance?

• Ensures efficient enzyme function and muscle contraction.

• It reduces the need for oxygen during exercise.

• It eliminates the need for breathing during high-intensity exercise.

• It prevents sweating during exercise.