BIOMOLECULES AND ENZYMES

BIOLOGY

VITAMINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ is first absorbed into the lymph system and then into the blood.
A
Fat soluble vitamins
B
Water soluble vitamins
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The fat-soluble vitamins are vitamin A, D, E and K. These vitamins are insoluble in water. Post absorption these vitamins are transported to the bloodstream by the lymphatic vessels themselves.

Detailed explanation-2: -Fat soluble vitamins are stored in adipose tissues. These vitamins are not absorbed directly into the blood stream but are absorbed into the lacteals in the small intestine via chylomicrons, transported through the lymphatic system and then released into the blood stream (Kalepu et al., 2013).

Detailed explanation-3: -Water-soluble nutrients and small products of fat digestion enter the bloodstream directly; large fats and fat-soluble nutrients are absorbed first into the lymph.

Detailed explanation-4: -There are blood capillaries and special lymph capillaries, called lacteals, in the center of each villus. The blood capillaries absorb most nutrients, but the fats and fat-soluble vitamins are absorbed by the lacteals. The lymph in the lacteals has a milky appearance due to its high fat content and is called chyle.

There is 1 question to complete.