biochemistry

Organic

Carbon containing, covalently bonded. Organic molecule also containing hydrogen

Inorganic

All other molecules water, salts, acids, bases

Salts

Ionic compounds that split in water and go into there own elements ( common in body NaCl CaCo3 KCl)

The concentration of blood

300 milliosmoles per liter (300 msOm/L)

Salt: Na K

Nerve impulse transmission,muscle contraction

Ca

Muscle contraction blood clotting bone strength

How much of the blood is sodium chloride

270 -280

Calcium phosphate

Makes bones and teeth hard #1 salt in body

Fe

Red blood cell formation

S

Protein in muscle

I

Thyroid molecule

pH

-Log [h+]

Humans pH

7.4 = alkaline (slightly)

HCI = ht + cl _

Produced in the stomach acid

H2Co3 = h+ + HCO3-

Produced in the blood acid

Co2 + H2O → H2CO3 → H+ + HCO3-

Bicarbonate (in blood) I In the lung it goes backward (base)

Low pH

H+ protons are high, acidity high, pH is low

High pH

H+ are low, alkaline/base, acidity low, pH is high