Ijmb Model Questions Vol1 2023 Biology Question 3

Practice essay / theory question 3 from the 2023 Ijmb Model Questions Vol1 Biology examination. This question covers Nutrition, Digestive system, Absorption .

Ijmb Model Questions Vol1 2023 Biology Essay / Theory

Topics: Nutrition Digestive system Absorption

Question 3 IJMB_MODEL_QUESTIONS_VOL1 • 2023 • BIOLOGY • essay

The diagram shows a transverse cross‑section of the adult human small intestine. The labelled parts include the duodenum (D), jejunum (J), ileum (I), villi (V), microvilli (M) lining the villi, and lacteals (L). The total length of the small intestine is approximately 6 m and its average internal diameter is 2.5 cm.

Question Parts

( a )

Identify the three regions of the small intestine shown in the diagram.

( b )

Explain how the structure of villi and microvilli enhances nutrient absorption in the small intestine.

( c )

Using the data provided, estimate the total effective absorptive surface area of the small intestine. Show all steps of your calculation.

( d )

Discuss two nutritional disorders that can result from impaired absorption in the small intestine, describing the underlying pathology for each.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Ijmb Model Questions Vol1 2023 Biology Question 3. It is one of the essay questions from the 2023 Ijmb Model Questions Vol1 Biology examination.

The question covers Nutrition, Digestive system, Absorption .

View More Ijmb Model Questions Vol1 2023 Biology Questions More Ijmb Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Chat with Support