Economics - Economics
Economics (63) Add new question
Question
Q: what are vitamins explain briefly?
| Option | Answer | Is Correct |
|---|---|---|
| 1 | A vitamin is a nutrient that is an organic compound required in tiny amounts for essential metabolic reactions in a living organism. The term vitamin does not include other essential nutrients such as dietary minerals, essential fatty acids, or essential amino acids, nor does it encompass the large number of other nutrients that promote health but that are not essential for life.Vitamins are bio-molecules that act as catalysts and substrates in metabolism. When acting as a catalyst, vitamins are often bound to enzymes and are called prosthetic groups. For example, biotin is part of enzymes involved in making fatty acids. Vitamins also act as coenzymes to carry chemical groups between enzymes. For example, folic acid carries various forms of carbon group —. methyl, formyl and methylene - in the cell. Although these roles in assisting enzyme reactions are vitamins’ most important function, these molecules can also act in other parts of metabolism, such as cell signaling.Until the 1900s, vitamins were obtained solely through food intake, and changes in diet (which, for example, could occur during a particular growing season) can alter the types and amounts of vitamins ingested. Vitamins have been produced as commodity chemicals and made widely available as inexpensive pills for several decades, allowing supplementation of the dietary intake. | |
| 2 | Vitamin A deficiency leads to skin diseases, night blindness, belching, and respiratory diseases. Vitamin A is found in milk, butter, carrot tomato, leafy’ vegetables and fruits. Vitamin B deficiency causes Ben Ben, degeneration of sex glands or enlargement of liver. Vitamin B is found in peas, beans and cereals. Vitamin C deficiency causes scurvy and tooth and bone diseases. It is found in lemon, orange and cabbage etc. Vitamin D deficiency causes rickets. It is found in butter, milk, yolk of egg. Vitamin E. - deficiency affects the reproductive organs and causes sterility. Vitamin B is present in germinating wheat. Vitamin K helps in coagulation of blood and is found in fish, wheat and oats. |
Are you prepared and ready for your Exam?
Test your preparation with free online test. Stay ahead from others. Self assessment/analysis at your finger tips.
- Free Registration
- Free 25 test for new members equivalent to 250 question.
- 73225+ free, good quality MCQs included in the system.
Win Prizes
Take part in our quiz competition to win cash prizes, Mobile phone credit and more....
Visit our quiz competition page