An illustration of villi in the small intestine. The microvilli are too small to see.Question 17SavedLook carefully at the diagram above and the illustration to the left.State the three ways that the surface area of the small intestine is increased.
Question
An illustration of villi in the small intestine. The microvilli are too small to see.Question 17SavedLook carefully at the diagram above and the illustration to the left.State the three ways that the surface area of the small intestine is increased.
Solution
The surface area of the small intestine is increased in three ways:
-
Length: The small intestine is very long, approximately 6-7 meters in adults. This length provides a large surface area for absorption.
-
Villi: The inner wall of the small intestine is covered in small finger-like projections called villi. These increase the surface area even further.
-
Microvilli: Each cell on the surface of a villus has even smaller finger-like projections called microvilli. These are too small to see with the naked eye, but they provide the greatest increase in surface area.
These three adaptations work together to maximize the surface area of the small intestine, allowing for efficient absorption of nutrients.
Similar Questions
The villi, microvilli, and circular folds of the large intestine all increase the surface area. True False
After looking carefully at the diagram above and the illustration to the left, state the three ways that the surface area of the small intestine is increased.
Select the option that explains why villi are shaped the way they are.They mash up foodThey move food through the digestive tractThey allow us to taste foodThey increase the surface area of the small intestine for absorption of nutrients
The fingerlike projections of the small intestine increase the surface area and are known as ________. villi cilia rugae haustra
The diagram shows the lining of the small intestine.How do villi affect the diffusion of nutrients?The folded membrane provides more surface area for particles to diffuse across and this decreases the rate of diffusion.The folded membrane provides less surface area for particles to diffuse across and this increases the rate of diffusion.The folded membrane provides more surface area for particles to diffuse across and this increases the rate of diffusion.The folded membrane provides less surface area for particles to diffuse across and this decreases the rate of diffusion.I DON'T KNOWSUBMIT ANSWER
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.