Mod 2- Phosphorus Flashcards
(11 cards)
Where is the majority of phosphorus found in the body?
About 85% of phosphorus is found with calcium in bones and teeth.
How does phosphorus contribute to bone strength?
It forms hydroxyapatite alongside calcium, which strengthens bones.
What structural role does phosphorus play in cells?
It is a key part of phospholipids that support cell membranes and lipoproteins.
Why is phosphorus important for genetic material?
It is essential for making DNA and RNA in cells.
How does phosphorus support energy metabolism?
It is part of ATP, the main energy molecule in cells.
What role does phosphorus play in pH regulation?
It acts as a buffer to help maintain the body’s acid-base balance.
What is the RDI for phosphorus in adults?
1000 mg/day.
What is the UL (Upper Limit) of phosphorus for adults aged 19–70?
4000 mg/day.
What are the top food sources of phosphorus?
Milk, meat, fish, poultry, legumes, and nuts.
What are symptoms of phosphorus deficiency?
Bone pain and muscle weakness.
What are symptoms of phosphorus toxicity?
Calcification of soft tissues, especially in the kidneys.
