Flashcards in Phosphorus Deck (15)
Loading flashcards...
1
2nd most abundant inorganic element in the body
phosphorus
2
body stores _____g of phosphorus which makes up ___% total body weight
700g
1%
3
best source of phosphorus
animal products
4
intestinal hydrolytic enzymes cannot free ____ bound phosphates (found in plant base foods)
phylate (lack enzyme phytase)
5
in bone, found complexed with Ca as part of the bone mineral ____
hydroxyapatite
6
PTH function on phosphorus
reabsorption of phosphate from bone, stimulates excretion of phosphorus in urine via kidney
7
calcitriol function on phosphorus
promotes phosphate absorption in small intestine
8
calcitonin function on phosphorus
prevent phosphate resorption from bone
9
as a structural role: phosphorus makes up _______ of DNA and RNA
sugar phosphate backbone
10
energy storage and transfer as ________ ATP, GTP, and creatine phosphate
high-energy phosphate bonds
(phosphoanhydride bond in hydrolyzed for energy)
11
acts a _______ within cells by activating certain kinases
secondary messenger
1. PI 4,5 bisphosphate
2. IP3 (inositol 1,4,5 trisphosphate)
12
phosphorus ___ pH by removing free hydrogen ions
increases (kidney most important)
13
PTH _____ the amount of phosphate excretion
increases
14
people who take anti-acids give themselves the chance of becoming
hypophophatemic
15
