The villi, microvilli, and circular folds of the large intestine all increase the surface area. True False
Question
Solution
Analysis of the Statement
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Understanding Structures: The villi and microvilli are primarily structures found in the small intestine, while the large intestine mainly contains circular folds (plicae circulares). Villi and microvilli are projections that increase the surface area for absorption.
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Role of Structures:
- Villi and Microvilli: These structures play a key role in enhancing surface area to facilitate nutrient absorption in the small intestine.
- Circular Folds: While the circular folds of the large intestine do contribute to surface area, they are less specialized for absorption compared to the villi and microvilli of the small intestine.
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Conclusion: The statement claims that all these structures increase the surface area of the large intestine. Since villi and microvilli are not predominant in the large intestine, the statement is misleading.
Final Answer
False. Only circular folds increase the surface area of the large intestine; villi and microvilli are primarily features of the small intestine.
Similar Questions
State the three ways that the surface area of the small intestine is increased.
Cells lining the small intestine arrange into ‘finger-like’ projections to increase surface area. Briefly outline why the cells are arranged like this.
Identify which features of the small intestine make it well suited to the absorption of nutrients.BacteriaMicrovilliEnzymesCircular foldsVilli
True regarding the ileum*1 pointMore prominent plicae circulares.Less vascular arcadesLess frequent plicae semilunarisMore fat in the mesentery
in the small intestine absorb nutrients from food and pass them on to the rest of the body.a) Villib) Blood cellsc) Haustrad) Sub-mucosa
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