If the number of villi decreases, which process will be affected most?
Answer and explanation
Correct answer: Absorption of nutrients
The governing concept is the relationship between surface area and absorption. Villi are finger-like projections in the small intestine that greatly enlarge its inner surface and contain capillaries for carrying absorbed nutrients. If their number decreases, the available surface area falls, so nutrient absorption becomes less efficient. Therefore option A is correct. The other choices concern the heart, oxygen production, or plant stomata.
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What is the correct answer to this question?
Absorption of nutrients
Why is this the correct answer?
The governing concept is the relationship between surface area and absorption. Villi are finger-like projections in the small intestine that greatly enlarge its inner surface and contain capillaries for carrying absorbed nutrients. If their number decreases, the available surface area falls, so nutrient absorption becomes less efficient. Therefore option A is correct. The other choices concern the heart, oxygen production, or plant stomata.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Life Processes. Topic: Nutrition.
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