Question 11 pts Proteins are broken down into ____________________ before being

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Question 11 pts

Proteins are broken down into ____________________ before being further broken down into _______________.

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Question 21 pts

During digestion polysaccharides are broken down into disaccharides, which are composed of 2 hexose sugars. Therefore, sucrose is composed of                            [ Select ]                       ["2 glucose molecules", "glucose and galactose", "glucose and fructose"]         , lactose is composed of                            [ Select ]                       ["2 glucose molecules", "glucose and galactose", "glucose and fructose"]         and maltose is compsed of                           [ Select ]                       ["2 glucose molecules", "glucose and galactose", "glucose and fructose"]      

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Question 31 pts

Triglycerides are hydrophobic molecules that are digested by a hydrophilic molecule called lipase.

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Question 41 pts

In the duct epithelium,                            [ Select ]                       ["Na+ and Cl-", "Na+ and K+", "Cl- and HCO3-", "K+ and HCO3-"]         are transported from the apical surface to the basilar surface, while                            [ Select ]                       ["Na+ and Cl-", "Na+ and K+", "Cl- and HCO3-", "K+ and HCO3-"]         are transported from the basilar surface to the apical surface of salivary glands.

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Question 51 pts

***This is an example of a test question***

Our mouth “waters” when the ___________ branch of the autonomic nervous system stimulates
__________ cells to transport ________ across the glandular epithelium.

Explanation / Answer

11. C. Peptides, Amino acids

This is because protein is first broken down into peptide chains and then further broken down into amino acids that form the peptide chain.

21. Sucrose = glucose and fructose.

Lactose = glucose and galactose.

Maltose = 2 molecules of glucose.

31. True

This is because of the fact that while triglycerides are hydrophobic they are digested by lipase which is hydrophilic and binds to it.

41. A. K+ and HCO3

B. Na+ and Cl-

51. B. parasympathetic, secretory epithelial, sodium

This is the pathway that is followed in this process.

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