Organic Molecules Quiz

The functions of this group of molecules include energy and cell membrane structure.

• nucleic acids

• carbon dioxide

• lipids

• carbohydrates

lipids

What type of molecule is made of CHON?

• lipid

• carbohydrate

• sodium chloride

• protein

protein

Nucleotides are the monomers for ____________.

• carbohydrates

• nucleic acid

• lipids

• proteins

nucleic acids

Which process is used to break down polymers into monomers?

• hydrogen bonds

• buffering

• hydrolysis

• dehydration

hydrolysis

What makes oils liquid at room temperature?

• carbon in a ring shape

• pH

• single bonds between carbon atoms

• double bonds between carbon atoms

double bonds between carbon atoms

What holds polypeptides in an alpha helix secondary structure?

• peptide bonds

• hydrogen bonds

• fatty acids

• polar covalent bonds

hydrogen bonds

Structure, transport, and movement are all functions of …

• proteins

• lipids

• carbohydrates

• nucleic acids

proteins

Which group of organic molecules stores genetic instructions?

• carbohydrates

• nucleic acids

• proteins

• lipids

nucleic acids

What molecule is this?

carbohydrate

What molecule is this?

protein

What molecule is this?

lipid

What type of reaction is this?

dehydration synthesis

Explain why a water molecule is taken out in dehydration synthesis?

A water molecule is taken out to create space in the valence shell of the oxygen in order to bond the monomers together.

A carboxylic acid functional group has the formula -COOH. What does the structure of a carboxylic acid look like? What two groups of organic molecules have a carboxylic acid functional group as part of their monomers?

lipids and proteins

Your instructor gives you a substance that contains carbon, hydrogen, and oxygen. What are 2 things that you should look for to identify your substance as a carbohydrate, lipid, or protein?

carbohydrate: can dissolve in water & has a ring-like structure

lipid: cannot dissolve in water & has a long carbon chain

protein: cannot be a protein because there is no nitrogen