Waec Model Questions Vol1 2022 Biology Question 3

Practice essay / theory question 3 from the 2022 Waec Model Questions Vol1 Biology examination. This question covers nutrition, digestion, absorption .

Waec Model Questions Vol1 2022 Biology Essay / Theory
Topics: nutrition digestion absorption
Question 3 WAEC_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • essay
Waec Model Questions Vol1 2022 Biology Question 3 diagram

The labelled diagram shows the major parts of the human digestive system and the primary nutrients absorbed at each site.

Question Parts

( a )
Identify the organ where carbohydrate digestion begins and the organ where most carbohydrate absorption occurs.
( b )
Describe the role of pancreatic amylase and brush‑border enzymes in carbohydrate digestion.
( c )
A 70‑kg adult male requires 0.8 g protein per kilogram body weight per day. Calculate his daily protein requirement in grams. If his diet provides only 45 g protein per day, discuss two possible health consequences of this deficiency.
( d )
Using the diagram, match each of the following nutrients to the primary site of their absorption. Give the letter of the organ from the diagram. (i) Lipids (ii) Amino acids (iii) Monosaccharides (iv) Vitamin B12

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About This Question

This is Waec Model Questions Vol1 2022 Biology Question 3. It is one of the essay questions from the 2022 Waec Model Questions Vol1 Biology examination.

The question covers nutrition, digestion, absorption .

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