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THE VISUAL LEARNING STUDIO
See the idea. Understand the connection.
35 visual explanations across 29 chapters, with topic maps throughout the library.
The chapter index will grow as additional notes are prepared. Chapters shown here are a learning collection, not a claim that the entire exam syllabus is complete.
SEE IT. CONNECT IT. EXPLAIN IT.
Understand the chapter visually
1 visual explanation · Study the connections, then test yourself.
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FOLLOW THE PROCESS
Digestion, absorption and assimilation
1
Ingestion
Food enters the body.
2
Digestion
Large food molecules are broken down into absorbable products.
3
Absorption
Products cross the gut lining into blood or lymph.
4
Assimilation
Cells use absorbed substances for energy, growth or storage.
5
Egestion
Undigested material leaves the digestive tract.
The connection This is a sequence of nutrition processes, not a diagram of all organs.
Study the expanded notes and the credited detailed textbook lessons. The current chapter index covers core topics; it is not a claim of exhaustive coverage of every examination syllabus. Check the official syllabus and primary references.
Human Life Processes — lesson overview
Digestion and absorption
Digestion breaks food into forms suitable for absorption; absorption transfers substances across the digestive lining into the body’s internal transport systems.
Carbohydrate digestion begins in the mouth through salivary amylase; stomach acid supports conditions for protein digestion and defence, rather than digesting every nutrient itself.
Bile supports fat emulsification and digestion conditions but is not itself a digestive enzyme. Much nutrient absorption occurs in the small intestine.
Respiration and circulation
Ventilation moves air; gas exchange transfers gases across surfaces; cellular respiration involves metabolic processes releasing usable energy. These are different steps.
Alveoli provide a large exchange surface with a thin barrier and close association with capillaries; diffusion follows partial-pressure gradients.
Human circulation is double circulation: pulmonary and systemic circuits connect heart, lungs and body in a coordinated flow.
Excretion and homeostasis
Kidneys form urine through filtration, selective reabsorption and secretion, regulated according to physiological conditions.
Excretion removes metabolic wastes; egestion removes unabsorbed digestive material. They are not interchangeable terms.
Homeostasis maintains internal variables within workable ranges through regulation, not an absolute unchanging state unaffected by the environment.
