Waec 2021 Biology Question 1

Practice essay / theory question 1 from the 2021 Waec Biology examination. This question covers General .

Waec 2021 Biology Essay / Theory

Topic: General

Question 1 WAEC • 2021 • BIOLOGY • essay

A sample of human blood was put in a test tube and allowed to spin in a centrifuge. The components of the blood sample were clearly separated.

( a )

List the four main components of blood that would be in the test tube.

( b )

Name the component of the blood that:

( c )

Mention three chemical substances transported by the blood component named in 1(b) above.

( d )

List four diseases associated with blood.

( e )

Explain briefly why a disease of the blood could be dangerous.

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This is Waec 2021 Biology Question 1. It is one of the essay questions from the 2021 Waec Biology examination.

The question covers General .

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