Chapter 2.4 Carbon

Question 1

The four elements that account for approximately 90% of the total dry mass are

Answer 1

Carbon
Oxygen
Nitrogen
Hydrogen

Question 2

State 3 properties of carbon that contribute to the structural diversity of carbon based molecules

Answer 2

1. The ability of carbon to form four covalent bonds
2. The spatial orientation of these bonds in the form of a tetrahedron
3. The ability of each bond to rotate freely

Question 3

Molecules that have the same chemical formula but different structures are

Answer 3

Isomers

Question 4

Which macromolecules always contain the four most common elements in organic molecules

Answer 4

Nucleic acids
Proteins