Unit 2 review Chemistry of Life & Macromolecules

Carbon is unique because it bonds

• 1 time readily with carbon

• 2 times readily with carbon

• 3 times readily with carbon

• 4 times readily with carbon

Within a water molecule, what bond is between the hydrogen and oxygen

• Covalent bond

• Ionic bond

• Hydrogen bond

• Peptide bond

Water's special properties of cohesion, adhesion, high specific heat, and ability to act as a near universal solvent are ALL due to

• covalent bonds between hydrogen and oxygen

• ionic bonds between oxygen and hydrogen

• hydrogen bonds between water molecules

• its polarity, uneven distribution of charges within the water molecule itself

What three elements are often in organic molecules?

• Nitrogen, carbon, hydrogen

• Oxygen, carbon, hydrogen

• Neon carbon hydrogen

• Oxygen, hydrogen, nitrogen

Which element is in all organic compounds?

• Hydrogen

• Carbon

• Nitrogen

• Oxygen

This macromolecule above is

• Lipid

• Carbohydrate

• Protein

• Nucleic acid

The function of this macromolecule is long term storage

• Carbohydrate

• Protein

• Nucleic acid

• Lipids

This function of this macromolecule is storing our genetic material

• Lipid

• Carbohydrate

• Nucleic acid

• Protein

An enzyme

• Is A lipid

• Is A biological catalyst

• Able to heat up molecules

• Slows down chemical reactions

Starch, glycogen, polysaccharides and cellulose are all

• Carbohydrates

• Lipids

• Nucleic acids

• Proteins