Absorption in the small intestine
Absorption is the passage of digested food from the small intestine into the blood or lymph.
Practice This ConceptMain explanation
Teacher explanation
The inner lining of the small intestine has many villi. These finger-like projections increase surface area so nutrients are absorbed quickly. Glucose and amino acids enter blood capillaries, while fats enter lacteals. This makes nutrient transfer efficient after digestion.
Example
After a meal, digested sugar from the intestine enters blood through villi.
Simple analogy
Villi are tiny absorbers with big surface power.
Common confusion
Students confuse absorption with digestion or think villi only add length.
Exam tip
Always mention increased surface area and the role of villi and lacteals.
Answer writing and exam use
1-mark use
Write the exact meaning of absorption in the small intestine in one clean line.
2-mark use
Define absorption in the small intestine and add one example or condition.
3-mark use
Explain absorption in the small intestine, show the method or example, and mention the common mistake.
Practice this concept with focused MCQs
Open the concept quiz intro first, review the test details, and then start a focused MCQ set from this concept only. Instant score and answer review are live now.
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