The Circulation System: DGCA Air Regulations questions

Question 1

How is oxygen transported around the body?

Accepted Answer

By red blood cells combined with haemoglobin.

Answer

By red blood cells combined with carbon dioxide.

Answer

By red blood cells combined with nitrogen and water vapour.

Answer

By red blood cells combined with nitrogen, hormones and plasma.

Question 2

How is the rate and depth of breathing controlled?

Accepted Answer

By the amount of carbonic acid in the blood.

Answer

By the amount of oxyhaemoglobin in the blood and lungs.

Answer

By the amount of haemoglobin in the blood and the lungs.

Answer

By the amount of carbon monoxide and oxygen in the blood.

Question 3

What is the function of the left and right ventricle?

Accepted Answer

Left: Pumps oxygenated blood around the body. Right: Pumps deoxygenated blood to the lungs.

Answer

Left: Pumps deoxygenated blood to the lungs. Right: Pumps oxygenated blood around the body.

Answer

Left: Pumps oxygenated blood to the lungs. Right: Pumps deoxygenated blood around the body.

Answer

Left: Pumps oxygenated blood to the lungs. Right: Pumps oxygenated blood around the body.

Question 4

The factor which most increases the risk of coronary heart disease is:

Accepted Answer

Family history.

Answer

Lack of exercise.

Answer

Obesity.

Answer

Smoking.

Question 5

What is the carcinogenic content of a cigarette?

Accepted Answer

Tar.

Answer

Nicotine.

Answer

The type of tobacco.

Answer

The wrapping.

15 more questions in this chapter, free with an account