Neco 2024 Biology Question 3

Practice essay / theory question 3 from the 2024 Neco Biology examination. This question covers Nutrition, Digestive system, Enzymes, Macronutrient metabolism .

Neco 2024 Biology Essay / Theory

Topics: Nutrition Digestive system Enzymes Macronutrient metabolism

Question 3 NECO • 2024 • BIOLOGY • essay

The diagram shows a labelled human digestive system highlighting the major organs involved in the processing of food.

Question Parts

( a )

Identify three major sites where digestion of nutrients begins and state the primary type of nutrient that is predominantly digested at each site.

( b )

Using the labelled diagram, trace the pathway of a carbohydrate molecule from ingestion to absorption. In your answer, mention the sequential organs it passes through, the enzymes that act on it, and the site where the final monosaccharides are absorbed into the bloodstream.

( c )

A person consumes a daily diet containing 250 g of carbohydrate, 80 g of protein and 70 g of fat. Calculate: (i) The total caloric intake from the diet. (ii) The percentage contribution of each macronutrient to the total calories.

( d )

If pancreatic amylase secretion is markedly reduced, predict the likely effect on carbohydrate digestion and suggest one practical dietary adjustment to compensate for this deficiency.

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About This Question

This is Neco 2024 Biology Question 3. It is one of the essay questions from the 2024 Neco Biology examination.

The question covers Nutrition, Digestive system, Enzymes, Macronutrient metabolism .

View More Neco 2024 Biology Questions More Neco Practice Questions Back to Questions

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