common elements in the human body Flashcards Preview

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Flashcards in common elements in the human body Deck (13)
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1

Carbon (C)

18.5% of body.
carbohydrates, lipids, proteins, and nucleus acids

2

Hydrogen (H)

9.5% of body.
influences pH of body fluids,

3

Nitrogen (N)

3.2% of body.
component of proteins and nucleus acids (genetic material)

4

Calcium (Ca)

1.5% of body.
salt in bones and teeth, required for muscle contraction, neural transmission, and blood clotting

5

Phosphorus (P)

1.0% of body. salt in combo with calcium in bones in teeth. forms part of high energy compound (ATP)

6

Potassium (K)

0.4% of body.
intercellular cation. necessary for conduction of nerve impulses and muscle contraction.

7

Sulfur (S)

0.3% of body.
Component of proteins (particularly contractile proteins of muscle)

8

Sodium (Na)

0.2% of body.
extra cellular cation. important for water balance, conduction of nerve impulse and muscle contraction

9

Chlorine (Cl)

0.2% of body.
extra cellular anion

10

Magnesium (Mg)

0.1% of body.
important cofactor for enzyme activity in a number of metabolic reactions.

11

Iodine (I)

0.1% of body.
needed to make functional thyroid hormones.

12

Iron (Fe)

0.1% of body.
component of functional hemoglobin molecule (which transports oxygen within red blood cells) and some enzymes.

13

Oxygen (O)

65% of body.
organic and inorganic. essential to oxidation of glucose and other food fuels. cellular energy (ATP) is produced.