HUMAN PHYSIOLOGY
DIGESTION AND ABSORPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to be transported and excreted as waste
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To be delivered to our lungs to be released
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to be taken in as water and delivered to cells
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to be taken to our cells throughout the body
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Detailed explanation-1: -The digestion (breaking down into smaller pieces) of these nutrients in the alimentary tract and the subsequent absorption (entry into the bloodstream) of the digestive end products make it possible for tissues and cells to transform the potential chemical energy of food into useful work.
Detailed explanation-2: -Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body.
Detailed explanation-3: -For cells to build all of the molecules required to sustain life, they need certain substances, collectively called nutrients. When prokaryotes grow, they obtain their nutrients from the environment.
Detailed explanation-4: -The blood carries nutrients such as vitamins, minerals, sugars, fats and proteins around the body. Digested nutrients are absorbed into the blood through capillaries in the small intestine. They are then moved to the cells around the body where they are needed.
Detailed explanation-5: -Absorption. The simple molecules that result from chemical digestion pass through cell membranes of the lining in the small intestine into the blood or lymph capillaries. This process is called absorption.