Which one of the following statements is true regarding digestion and absorption of food in humans?

  • Option 1)

    Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like N_{a}^{+}

     

  • Option 2)

    Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries.

  • Option 3)

    About 60% of starch is hydrolysed by salivary amylase in our mouth

  • Option 4)

    Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

 

Answers (1)

As we learnt in

Absorption in Different Parts of Digestive System -

Small Intestine

- wherein

Principal organ for absorption of nutrients. The digestion is completed here and the final products of digestion such as glucose, fructose, fatty acids, glycerol and amino acids are absorbed through the mucosa into the blood stream and lymph.

 

 The absorption takes place with the help of Na+


Option 1)

Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like N_{a}^{+}

 

Correct

Option 2)

Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries.

Incorrect

Option 3)

About 60% of starch is hydrolysed by salivary amylase in our mouth

Incorrect

Option 4)

Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Incorrect

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