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Home Q & A Board Biology-Related Homework Help General Biology
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palantriel palantriel
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6 years ago
How many chains are present in crambin?
 
  a. 1
  b. 2
  c. 3
  d. 4

Question 2

The cells that line your small intestine absorb nutrients. Their cell membranes consist of many extensions and folds that project into the open space of the intestine. Why is this cell structure advantageous in the small intestine?
 
  What will be an ideal response?
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wrote...
#1
6 years ago
Answer to q. 1

a

Answer to q. 2

The main function of these cells is absorption of nutrients, and the only way to improve the efficiency of this activity is to increase surface area without too much increase in volume. This leads to the evolution of a multitude of thin, narrow folds in the cell membrane.
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