Acid-Base Balance in Biological Systems
Biology ⇒ Biological Systems and Homeostasis
Acid-Base Balance in Biological Systems starts at 10 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Acid-Base Balance in Biological Systems.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A patient has a blood pH of 7.28. Is this considered acidosis or alkalosis?
A patient with chronic kidney failure is likely to develop which acid-base disorder?
Describe how the body compensates for metabolic alkalosis.
Describe the effect of hypoventilation on blood pH.
Describe the role of hemoglobin in acid-base balance.
Explain how the respiratory system helps maintain acid-base balance.
A patient has a blood pH of 7.28. Is this considered acidosis or alkalosis?
A patient with chronic kidney failure is likely to develop which acid-base disorder?
If a person is hyperventilating, what effect does this have on blood pH? (1) Increases pH (2) Decreases pH (3) No effect (4) Causes metabolic acidosis
If the concentration of bicarbonate (HCO₃⁻) in blood increases, what will happen to the pH? (1) Increase (2) Decrease (3) Remain unchanged (4) Fluctuate randomly
What is the normal pH range of human blood? (1) 6.8–7.0 (2) 7.35–7.45 (3) 7.8–8.0 (4) 6.0–6.5
Which of the following best describes a buffer? (1) A substance that speeds up chemical reactions (2) A substance that resists changes in pH (3) A substance that increases acidity (4) A substance that neutralizes bases only
Metabolic alkalosis can result from excessive loss of _______ from the body, such as through vomiting.
Respiratory acidosis is caused by _______ ventilation, leading to accumulation of CO₂.
The enzyme that catalyzes the conversion of CO₂ and H₂O to carbonic acid in red blood cells is _______.
The kidneys compensate for respiratory acidosis by _______ the reabsorption of bicarbonate ions.
The Henderson-Hasselbalch equation is used to calculate the pH of a buffer solution. True or False?
True or False: Acidosis refers to a condition where the blood pH falls below 7.35.
True or False: Proteins can act as buffers in both intracellular and extracellular fluids.
True or False: The lungs can compensate for metabolic acidosis by increasing the rate of breathing.
