26.02.2024 quiz year 8

The diagram shows the human heart.

Which two chambers contract at the same time?

• W and X

• W and Z

• X and Z

• X and Y

Figure shows the blood supply for the liver of a mammal. Blood from organ X is carried to the liver by blood vessel Y. What is the name of blood vessel Y.

The diagram shows a section through a human heart. Which blood vessel is the pulmonary vein?

• A

• B

• C

• D

What happens to the heart valves when the ventricles contract?

• A

• B

• C

• D

Measuring the pulse rate is one way of monitoring the activity of the heart.

State one other way of monitoring the activity of the heart.

A student performed different types of activity. She measured her heart rate during each type of activity in beats per minute (bpm). The results are shown in figure.

1. 1.State the type of activity that results in the highest heart rate in figure.

2. 2.State the heart rate of the student when she was cycling

The nutrients in the blood can be used to become part of cells. State the name of this process.

Answer explanation

This is also a step in food processing

The diagram shows a section through the heart.

What is the function of the structure labelled Q?

• It controls the amount of blood leaving the heart.

• It prevents blood flowing into the vena cava.

• It prevents backflow of blood into part P.

• It increases the pressure in part R.

It is a diagram of a section through a human heart.

1. 1.State the name of the blood vessel labelled Y

2. 2.State the function of the part labelled Z

3. 3.State the name of the main type of tissue that forms the wall of the heart.

Coronary heart disease (CHD) is a blockage of one of the blood vessels of the heart.

1. 1.State the name of the blood vessel that becomes blocked in CHD.

2. 2.List two risk factors for coronary heart disease.

3. 3. List the names of two types of cell found in blood.