Chapter 13: Phosphorus

Question 1

phosphorus

Answer 1

2nd most abundant in the body, provides strength to bones, found mostly in protein foods but also soft drinks

Question 2

85% of phosphorus is found in

Answer 2

bones and teeth

Question 3

15% of phosphorus is found in

Answer 3

soft tissue

Question 4

Phosphorus combined with calcium

Answer 4

hydroxyapatite

Question 5

Phosphorus as phosphate

Answer 5

major intracellular negatively charged electrolyte

Question 6

Functions of phosphorus

Answer 6

critical to mineral composition of bone, required for proper fluid balance, component of ATP, DNA, membranes

Question 7

Hydroxyapatite

Answer 7

mineral composition of bone

Question 8

Recommended intake of phosphorus

Answer 8

RDA is 700 mg/day, we tend to consume 2x on average

Question 9

Deficiency of phosphorus

Answer 9

rare

Question 10

toxicity of phosphorus

Answer 10

none known

Question 11

Sources of Phosphorus

Answer 11

High protein containing foods (milk, meats, eggs), processed foods as an additive, and soft drinks as phosphoric acid