1. Which one of the following is NOT an important functional group or linkage in biomolecules? A) Phosphodiester B) Hemiketal C) Thiol D) Lipid E) Phosphoanhydride

The R group of aspartic acid is -CH2COOH. What will the structure of the amino acid be at a very high pH (above all its pKa values)? H2N- CH- -C OH H3N- -CH- -С— он H2N- -CH CH2 CH2 A) B) C) D) H3C- ÓH ÓH

Which of the following is NOT a naturally-occurring amino acid?

Compare nucleic acids with polysaccharides. Which of the following is NOT true? Group of answer choices A) Both have monomers that contain simple sugars. B) Both function as structural support for cells. C) Both types of molecules are organic. D) Both are polymerized by dehydration reactions. .

Which of the following levels of protein structure can involve covalent bond formation? A) Primary B) Secondary C) Teritary D) Quaternary E) Primary and teritary F) Primary, teritary and quaternary

Which of the following is not one of the states of lipids?a) Para crystalline stateb) Liquid ordered statec) Liquid disordered stated) Crystalline state

Which statement is true about Nucleic Acids?  a) DNA is a protein b) DNA is identical to RNA c) RNA has the structure of a double helix d) RNA binds to DNA but not to amino acids e) None of these are true.

42. Phospholipids can form all the following structures in a water environment except? chloroplasts b) bilayers c) Chromosomes       d) Endoplasmic reticulum       e) nuclear membrane

When phospholipids are carefully mixed with water they are observed to exhibit which of the following properties? a) Spontaneous organization into stable structures within the water environment, b) Orientation of the Phosphate parts of the molecule away from fatty acid (non-polar) environment of a bilayer, c) Hydrophilic orientation of the ionic section of the phospholipid molecules to the polar portions of the water molecules, d) All are true, e) None are true.

Which of the following is a carbohydrate? a). cholesterol c). wax d). amylopectin e). prostaglandin