NEET BIOLOGY

Detailed explanation-1: -Vitamins are not digested but absorbed in the gastrointestinal tract. Carbohydrate, protein and fats require digestion before they can be absorbed in monomer form. Fat soluble vitamins are absorbed along with dietary fat, whereas water soluble vitamins are absorbed by passive diffusion.

Detailed explanation-2: -They do not require digestion. They are either water soluble or fat soluble, hence no enzyme is required to digest vitamins. They are absorbed directly from the digestive tract, transported by blood to the cells, and the cells absorb and use them whenever they need.

Detailed explanation-3: -They are absorbed directly into the bloodstream as food is broken down during digestion or as a supplement dissolves. Because much of your body consists of water, many of the water-soluble vitamins circulate easily in your body.

Detailed explanation-4: -Vitamin A, D, E, and K are fat-soluble and become surrounded by fatty acids in spherical structures called micelles. They are absorbed into lymphatic vessels. All the B vitamins, folic acid and vitamin C are water-soluble and are absorbed into the bloodstream.