How Many Different Amino Acids Are There to Choose from When

Q21: Carbohydrates<br>A) form only ring structures.<br>B) form only

Q22: D-amino acids are associated with<br>A) radioactive isotopes.<br>B)

Q23: Lipids are polar, hydrophilic molecules.

Q24: The subunits (building blocks) of proteins are<br>A)

Q25: As DNA is always double-stranded, RNA is

Q27: Which is NOT True of lipids?<br>A) They

Q28: The components of fats are fatty acids

Q29: Unsaturated fats have lower melting points than

Q30: Weak bonds are important for the _

Q31: Which statement is True of nucleotides?<br>A) They