Introduction to Organic Macromolecules

The most common elements in living things are:

• Carbon, Hydrogen, Oxygen, Sodium

• Carbon, Hydrogen, Oxygen, Nitrogen

• Calcium, Hydrogen, Sodium, Iron

• Sodium, Calcium, Iron, Hydrogen

How many elements are things mostly made of?

• Four

• Six

• eight

• twelve

For a molecule to be an organic molecule, it must contain

• Hydrogen and Oxygen

• Oxygen and Helium

• Carbon and Oxygen

• Carbon and Hydrogen

Living things are made of both organic and inorganic molecules

• True

• False

Which is true about organic molecules built around carbon atoms?

• They must also contain nitrogen

• They do not contain hydrogen

• They can form very long chains

• They cannot form very long chains

Is this an organic molecule? C₆H₁₂O₆

• Yes

• No

Is this an organic molecule? CO₂

• Yes

• No

Is this an organic molecule? NaCl

• Yes

• No

Is this an organic molecule? H₂O

• Yes

• No

Is this an organic molecule? CH₄

• Yes

• No