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Question
Which one of the following pairs of food compounds in humans reaches the stomach totally undigested?
Which one of the following pairs of food compounds in humans reaches the stomach totally undigested?
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Solution
The correct option is D Fat and cellulose
Digestion of starch begins with the action of salivary alpha-amylase/ptyalin. Chewing your protein-rich foods well – especially tough ones like certain cuts of meat or whole grains – increases the surface area of the food particles and allows digestion to occur more quickly. Also, there is an enzyme called salivary kallikrein which breaks down specific proteins. So the process of protein digestion begins in your mouth and ends in your small intestine, with the help of digestive juices and enzymes. Most mammals have limited ability to digest dietary fiber such as cellulose itself. Even though there is the presence of lingual lipase for fat digestion in the saliva much of the fat reaches the stomach undigested. So the most appropriate answer here is fat and cellulose.
Digestion of starch begins with the action of salivary alpha-amylase/ptyalin. Chewing your protein-rich foods well – especially tough ones like certain cuts of meat or whole grains – increases the surface area of the food particles and allows digestion to occur more quickly. Also, there is an enzyme called salivary kallikrein which breaks down specific proteins. So the process of protein digestion begins in your mouth and ends in your small intestine, with the help of digestive juices and enzymes. Most mammals have limited ability to digest dietary fiber such as cellulose itself. Even though there is the presence of lingual lipase for fat digestion in the saliva much of the fat reaches the stomach undigested. So the most appropriate answer here is fat and cellulose.
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