Elements

Question 0

The primary element in all organic molecules including carbohydrates, lipids, proteins and nucleic acids

Answer 0

Carbon

C

Question 1

A major component of both organism and inorganic; as a gas essential to the oxidation of other foods fuels during which cellular energy (ATP) is produced

Answer 1

Oxygen

O

Question 2

A component of most organic molecules; as an ion (a changed atom) it influences the PH of the body fluids

Answer 2

Hydrogen

H

Question 3

A component of proteins and nucleic acids (genetic material)

Answer 3

Nitrogen

N

Question 4

Found as a salt in teeth and bones; in ionic form required for muscle contraction, neural transmission, and blood clotting

Answer 4

Calcium

CA

Question 5

Present as a salt in combination with calcium in bones and teeth also present in nucleic acids and many proteins; forms part of the high energy compound ATP

Answer 5

Phosphorus

P

Question 6

A compound of proteins (particularly contractile proteins of muscle)

Answer 6

Sulfur

S

Question 7

As an ion the major extra cellular cation; important for water balance, a condition of nerve impulses and muscle contraction

Answer 7

Sodium

NA

Question 8

An ionic form the most abundant ex cellular anion

Answer 8

Chloride

Cl

Question 9

Present in bone; also an important cofactor for enzyme activity in a number of metabolic reactions

Answer 9

Magnesium

Mg

Question 10

Needed to make functional thyroid hormones

Answer 10

Iodine

I

Question 11

A component of the functional hemoglobin molecule (which transports oxygen within red blood cells) and more enzymes

Answer 11

Iron

Re

Question 12

In its ionic form the major intercellular cation; necessary for the conduction of nerve impulses and for muscle contraction

Answer 12

Potassium

K