Bicarbonate Buffer System Concepts

The video tutorial explains the bicarbonate buffer system, which helps maintain blood pH within a narrow range of 7.35 to 7.45. It discusses the importance of buffers in preventing blood from becoming too acidic or alkaline, which can lead to serious health issues. The tutorial reviews basic concepts of acids and bases, illustrating how the bicarbonate buffer system works to regulate pH by either forming carbonic acid or dissociating it. Additionally, it highlights the role of the respiratory system in maintaining pH balance by adjusting respiration rates to manage carbon dioxide levels.

What is the normal pH range of blood?

• 6.5 to 7.0

• 6.8 to 7.2

• 7.5 to 8.0

• 7.35 to 7.45

What can result from abnormal blood pH levels?

• Improved digestion

• Increased energy

• Coma and death

• Enhanced immunity

What do acids tend to do in a solution?

• Form water

• Combine with hydrogen ions

• Give up hydrogen ions

• Increase pH

Which of the following is an example of a base?

• Sodium chloride

• Hydrochloric acid

• Sodium hydroxide

• Carbonic acid

What happens when there are too many hydrogen ions in the blood?

• Bicarbonate ion combines with hydrogen ion

• Carbonic acid dissociates

• pH increases

• Respiration rate decreases

What does carbonic acid dissociate into?

• Carbon dioxide and water

• Hydrogen ions and bicarbonate ions

• Hydrogen ions and chloride ions

• Sodium ions and hydroxyl groups

What is the effect of acidosis on the bicarbonate buffer system?

• Increase in pH

• Decrease in hydrogen ion concentration

• Formation of carbonic acid

• Reaction moves to the right

What happens during alkalosis in the bicarbonate buffer system?

• Dissociation of carbonic acid

• Reaction moves to the left

• Decrease in pH

• Formation of carbonic acid

How does the respiratory system respond to acidic blood?

• Decreases respiration rate

• Increases carbon dioxide concentration

• Increases respiration rate

• Decreases hydrogen ion concentration

What follows carbon dioxide concentration in the blood?

• Hydrogen ion concentration

• Oxygen concentration

• Bicarbonate ion concentration

• Chloride ion concentration