SAC 2 Revision

How many molecules of Oxygen can one molecule of Haemoglobin transport?

• 2

• 4

• 0

• 10

Can a small amount of oxygen be transported in blood plasma?

• Yes

• No

The average resting respiratory rate for an adult is

• 0-4 breaths per minute

• 5-10 breaths per minute

• 60-90 breaths per minute

• 12-16 breaths per minute

A-VO2 difference is

• the difference in oxygen concentration between the arteries and the veins

• the difference in oxygen concentration between the arteries and the capillaries

• the difference in oxygen concentration between the capillaries and the veins

• the difference in oxygen concentration between the heart and the lungs

What is the definition of high blood pressure?

• High blood pressure is when the pressure in your arteries is (90/140 mmHg or higher)

• High blood pressure is when the pressure in your arteries is (140/90 mmHg or higher)

• High blood pressure is when the pressure in your arteries is (120/80 mmHg or higher)

Which answer best describes the term "thermoregulation"

• Thermoregulation refers to how the body tries to increase its internal temperature.

• Thermoregulation refers to how the body tries to reduce its internal temperature.

• Thermoregulation refers to how the body maintains its internal temperature.