Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Lipids contain oxygen and are therefore polar covalent compounds.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Proteins are composed of strings of fatty acids linked by glycosidic bonds.

Why is it important for a protein to maintain its structure? What is it called when a protein loses its structure?

Which of the following is not part of a nucleotide?

a. An amino acid

b. A nitrogenous base

c. One or more phosphate groups

d. A sugar

Mark the following properties as belonging to either DNA or RNA.

a. Contains the nucleotides A, G, C, and U _________          

b. Found only in the nucleus of the cell   _________       

c. Can move in and out of the cell's nucleus _________         

d. Contains two strands of nucleotides linked by hydrogen bonds _________          

e. Contains the code for every protein in the body _________          

f. Contains the sugar ribose _________          

Which of the following statements is/are true regarding ATP?

a. It is the body's primary source of chemical energy.

b. Its production is the main reason humans breathe oxygen.

c. It is produced using the energy from the oxidation of molecular fuels like glucose.

d. All of the above statements are true.