Year 10 DSCI Blood

Last updated 10 months ago
9 questions
4

Blood consists of cells and plasma.

Plasma transports various substances to and from different parts of the body.
Describe the function of plasma in transporting named substances in the body.

1

Name the structure labelled A in the diagram.

2

Describe the function of this cell in defending the body from infection.

1

Other white blood cells produce proteins called antibodies.

State how you could test a sample of plasma for protein.

Human blood cells have different roles within the body.
1

Which component does layer P contain?

1

The diagram can be used to estimate the percentage of total blood volume that is made up by each layer.

The estimated percentage of each layer is

1

Some people have a condition called anaemia, in which the blood contains less haemoglobin. This alters the percentage of each layer.

Describe how a blood sample from a person with anaemia would differ in appearance from a normal blood sample.

4

Explain how white blood cells protect the body from disease.

2

Name two substances that are transported around the body in plasma.