Question

The daily value of phosphorus is 800 mg. How many grams of phosphorus are recommended?

Answer 1

Hint: Before solving this question, We should first know the relation between the grams (g) and milligrams (mg). 1 gram has 1000 milligrams units. Now we have to use this conversion and apply it to our question to get the required answer.

Complete answer:
We know, 1 kilogram has 1000 grams
The symbol of a kilogram is (Kg) whereas the symbol of grams is (g)
But here we have been asked about grams and milligrams
1 gram has 1000 milligrams
Therefore, 1 mg = $\dfrac{1}{1000}$g = ${{10}^{-3}}$g
In the question, The value of phosphorus is given 800 mg
So, 800mg = $800\,\times \,{{10}^{-3}}$
                   = $\dfrac{800}{1000}$
                   = 0.8 g
So, 0.8 g of phosphorus is required daily.
Phosphorus is present in the food in the form of phosphate and phosphate esters. Passive absorption in the small intestine is faced by phosphorus, some get absorbed by active transport as well.
Phosphorus helps to regulate gene transcription, helps to maintain the pH in energy storage. It also activates the enzymes. Phosphorus forms 1-1.5% fat-free mass. Our bones and teeth comprise 85 % and 15% are there all over the blood and soft tissues.

Note:
Phosphorous is a vital mineral that is present organically in many foods and is taken as a dietary supplement too. Our bones, teeth, DNA, and RNA comprises phosphorus. Our cell membrane also has phosphorus in the form of phospholipids. It is a component in RNA as well.