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Year 10 DSCI Blood

Last updated about 1 year ago

9 questions

4

Question 1

1.

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

Question 2

2.

Name the structure labelled A in the diagram.

2

1

Human blood cells have different roles within the body.

1

1

1

4

2

Question 3

3.

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

Question 4

4.

Other white blood cells produce proteins called antibodies.

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

Question 5

5.

Question 6

6.

Question 7

7.

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.

Question 8

8.

Explain how white blood cells protect the body from disease.

Question 9

9.

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

Which component does layer P contain?

A plasma

B platelets

C red cells

D white cells

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

A P 5% Q 40% R 55%

B P 40% Q 55% R 5%

C P 55% Q 5% R 40%

D P 55% Q 40% R 5%