Neco 2021 Biology Question 5

Practice essay / theory question 5 from the 2021 Neco Biology examination. This question covers transport, circulatory system .

Neco 2021 Biology Essay / Theory

Topics: transport circulatory system

Question 5 NECO • 2021 • BIOLOGY • essay

The diagram shows the major components of the human circulatory system involved in the transport of blood throughout the body.

( a )

Trace the complete pathway of oxygenated blood from the lungs to the systemic tissues, naming each chamber and major vessel it passes through.

( b )

Explain the role of the atrioventricular (AV) valves and the semilunar valves in maintaining unidirectional blood flow.

( c )

Discuss two physiological mechanisms that increase the rate of blood transport during moderate exercise.

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This is Neco 2021 Biology Question 5. It is one of the essay questions from the 2021 Neco Biology examination.

The question covers transport, circulatory system .

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