Question

The vitamin which is generally excreted in urine by humans is:
A. Vitamin A
B. Vitamin K
C. Vitamin B
D. Vitamin E

Answer 1

Hint: Human body runover urine which contains vitamin B and C. These vitamins can not be synthesized by the human body so they are excreted out from the body. Generally human beings excrete vitamins which are soluble in water.

Complete Solution:
Vitamins are of two types based on their ability to dissolve in water or lipids, namely water-soluble and lipid-soluble vitamins. Vitamin B complex and C constitute water-soluble vitamins whereas Vitamin A, D, E, and K are considered as lipid-soluble vitamins.

Therefore, the option (C) is the correct choice.

Additional Information:
Vitamins are organic compounds needed to sustain life in limited amounts. The majority of vitamins must come from food. Different vitamins have various functions, and different amounts are required.

Vitamins can be split into two types: fat-soluble and water-soluble vitamins. In the body's and liver fatty tissues, fat-soluble vitamins are processed. Fat-soluble are vitamins A, D, E, and K. This is more easily stored than water-soluble vitamins thus, they will remain in the body as reserves for days and months. The intestinal tract absorbs fat-soluble vitamins by means of lipids or fats.

Vitamins that are water-soluble don't last in the body for long. They can't be kept in the body and are excreted in urine prematurely. As a result, water-soluble vitamins need to be substituted more frequently than fat-soluble ones. Vitamin C and all B vitamins come under the category of water-soluble vitamins.

Note: Fat soluble and water soluble are the two main types of vitamins. Vitamin C and all B vitamins – thiamine, riboflavin, niacin and others– are similar in nature, because they are all water soluble. The body is able to store these vitamins only in a limited way and thus must continually be loaded up with food to supply these vitamins. Water-soluble vitamins are metabolized and then excreted in the urine through the digestive tract into the bloodstream.