Acids and Bases quiz questions.

Question 1

What bonds are formed in acids and bases?

Answer 1

Covalent bonds

Question 2

Acids are:

Answer 2

Proton donors

Question 3

What is the desired range of pH in arterial blood?

Answer 3

7.35-7.45

Question 4

What part of the brain is the respiratory centre?

Answer 4

Medulla oblongata

Question 5

What is the average time that an untrained individual can hold their breath for?

Answer 5

40 Seconds

Question 6

What causes a decrease in arterial pH?

Answer 6

High hydrogen ions

Question 7

What are the symptoms of a low arterial pH?

Answer 7

Dizziness, headaches, nausea

Question 8

What is the role of ventilatory buffering?

Answer 8

CO2 removal.

Question 9

What is the role of renal buffering?

Answer 9

Restoring bicarbonate ions.

Question 10

Bicarbonate ‘mop up’ hydrogen ions to form:

Answer 10

Carbonic Acid

Question 11

What are the key regulators for breathing at rest?

Answer 11

pH, concentration of CO2, concentration of O2, temperature.

Question 12

Give an example of a nutritional buffer:

Answer 12

Sodium bicarbonate.