Gce Model Questions Vol1 2018 Biology Question 3

Practice essay / theory question 3 from the 2018 Gce Model Questions Vol1 Biology examination. This question covers Nutrition, Digestive system .

Gce Model Questions Vol1 2018 Biology Essay / Theory
Topics: Nutrition Digestive system
Question 3 GCE_MODEL_QUESTIONS_VOL1 • 2018 • BIOLOGY • essay
Gce Model Questions Vol1 2018 Biology Question 3 diagram

The diagram shows a labelled illustration of the human digestive system, including the mouth, esophagus, stomach, duodenum, jejunum, ileum, large intestine, rectum, anus, liver, gallbladder and pancreas.

Question Parts

( a )
State the principal function of each of the following organs: mouth, stomach, small intestine and large intestine.
( b )
Explain how mechanical and chemical digestion occur in the stomach, mentioning the role of the main components of gastric juice.
( c )
The pancreas is shown adjacent to the duodenum. Describe how pancreatic secretions aid digestion in the small intestine and outline the hormonal regulation of their release.
( d )
Identify the region where most nutrient absorption occurs and discuss two structural adaptations that make this region efficient for absorption.

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About This Question

This is Gce Model Questions Vol1 2018 Biology Question 3. It is one of the essay questions from the 2018 Gce Model Questions Vol1 Biology examination.

The question covers Nutrition, Digestive system .

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