Neco 2022 Biology Question 3

Practice essay / theory question 3 from the 2022 Neco Biology examination. This question covers nutrition, human digestive system, physiology .

Neco 2022 Biology Essay / Theory

Topics: nutrition human digestive system physiology

Question 3 NECO • 2022 • BIOLOGY • essay

The diagram shows the human digestive system with its major organs labelled A–H.

Question Parts

( a )

Identify the organ labelled C and describe its role in both mechanical and chemical digestion.

( b )

Explain how the enzymes secreted by the organ labelled G (pancreas) aid digestion in the small intestine. Include at least three enzymes and the nutrients they act upon.

( c )

Discuss the importance of the organ labelled E in water absorption and formation of faeces. State two possible health problems that may arise if this organ is impaired.

( d )

Using the diagram, trace the pathway of a bolus of food from ingestion to elimination, naming each labelled organ it passes through and the main function performed at each stage.

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About This Question

This is Neco 2022 Biology Question 3. It is one of the essay questions from the 2022 Neco Biology examination.

The question covers nutrition, human digestive system, physiology .

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