Unit 1 Acid Base Imbalances

What is an acid capable of doing in an acid-base system?

• Accepting a hydrogen ion

• Giving up a hydrogen ion

• Forming a salt

• Neutralizing a base

What is a base capable of doing in an acid-base system?

• Giving up a hydrogen ion

• Accepting a hydrogen ion

• Forming carbon dioxide

• Reacting with water

What is the normal pH range of the human body?

• 6.8 to 7.2

• 7.35 to 7.45

• 7.8 to 8.2

• 7.0 to 7.5

Tags

NGSS.HS-LS1-3

What pH level is considered life-threatening?

• Below 7.25 or above 7.55

• Below 7.0 or above 8.0

• Below 6.5 or above 7.5

• Below 7.5 or above 8.5

What condition is indicated by a pH above 7.8?

• Acidosis

• Neutrality

• Alkalosis

• Hyperacidity

What is acidosis?

• The result of either a loss of base or an accumulation of acid

• The result of either a loss of acid or an accumulation of base

• The result of an accumulation of water

• The result of a loss of oxygen

Tags

NGSS.HS-LS1-3

What is alkalosis?

• The result of either a loss of base or an accumulation of acid

• The result of either a loss of acid or an accumulation of base

• The result of an accumulation of water

• The result of a loss of oxygen

Tags

NGSS.HS-LS1-3

Which of the following is NOT a mechanism that balances pH in the body?

• Buffer systems

• Respiratory system

• Renal system

• Digestive system

Tags

NGSS.HS-LS1-3

What is the role of the buffer system in pH balance?

• It controls bicarbonate to neutralize acids.

• It is the first to respond to neutralize H+ ions.

• It controls CO2 to form carbonic acid.

• It increases the pH to make it more alkaline.

How does the respiratory system contribute to pH balance?

• By controlling bicarbonate levels.

• By increasing the concentration of hydrogen ions.

• By controlling CO2 to form carbonic acid.

• By directly neutralizing acids.