QUESTION 12 pH is not affected e pH will increase pH will decrease QUESTION 13 H

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QUESTION 12 pH is not affected e pH will increase pH will decrease QUESTION 13 How are dietary lipids absorbed (mechanism of transport) into the absorptive cells of the small intestine? reference: chapter 24 digestive system-section " "absorption of lipids and bile salts") QUESTION 14 If the concentration of fatty acids and monoglycerides is higher in the lumen of the small intestine versus inside the absorptive cell of the smal intestine, the movement of fatty acids and monoglycerides will be from the lumen into the absorptive cel. the (reference: chapter 24 digestive system section "absorption of lipids and bile sals"; chapter g cellular level of organ principle of diffusion and 'simple diffusion" and "facilitated difusion) True o False

Explanation / Answer

1.

Correctoption: pH will increase.

when fatty acids are broken down into fats then the leads to increase in pH.Fats acidic PH which leads to increase in the pH of the system.

They have certain chemical group which provides them acidic PH.

Fatty acid have high chain length composed of carbon and hydrogen.

2.

Correct answer: by simple diffusion process.

the membrane of cell is composed of lipid bilayer which is hydrophobic in nature. Fats are also hydrophobic in nature. when the cross through a cell membrane that dissolves in the lipid bilayer and can cross easily.

Simple diffusion : movement of molecules from higher concentration to lower concentration without the use of energy.

14.

True.

As I mentioned above molecules most from higher concentration to lower concentration.

Here it is mentioned that fats and monoacylgycerides are more in human and less in absorptive cells. The molecules moves by simple diffusion from lumen to cells.

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