The Human Body System · JHS1 Science

Lesson notes

Learning Objectives

Indicator: B7.3.1.1.3 - Identify the end product of digestion of starchy, protein and oily foods and explain how absorption of the digested food occurs in humans

By the end of the lesson, learners can:

State the end products of digestion for starchy foods, protein foods, and oily foods (sugar/glucose, amino acids, and fatty acids respectively).
Draw a simple flow chart linking each food type to its digested end product.
Describe the pathway of absorption of digested food in humans, including the role of the small intestine and villi.
Explain in their own words why digested food must be in liquid or soluble form before it can pass into the blood.
Use simple food tests (iodine for starch, Benedict’s solution for glucose) to confirm that digestion changes foods into new substances.

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Curriculum details

Strand: Systems (Strand 3)
Sub-strand: The Human Body System (3.1)
Content standard: B7.3.1.1 - Show an understanding of the concept of food, and the process of digestion and appreciate its importance in humans
Indicator: B7.3.1.1.3 - Identify the end product of digestion of starchy, protein and oily foods and explain how absorption of the digested food occurs in humans
Suggested placement: Term 2, Week 1 (Week 13 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: Science, Common Core Programme (JHS1-JHS3), 2023, p. 18
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

1. Observe and describe how digested food is absorbed into the body of humans using animation.
2. Draw a flow chart to show that starch is digested to sugar, protein is digested to amino acids and oils are digested into fatty acids.
3. Perform practical tests on food: starch, glucose, protein and fats and oils.