The following is a property of acids, bases, or neither ? H+1 acceptors O A. acids B. bases O C. neither D. both

1. Polar Covalent Bonds a. Draw one water molecule. b. Indicate which bonds are polar covalent bonds by using a solid red line for each of those bonds. c. Label the partial charges.

A (-) charge in the transition state can be stabilized by a catalyst, which is usually a(n): a. Anion b. Base Oc. Nucleophile Od. Acid

Use the drawing to answer the following: a. Label the bases as A, c, G, or T b. Draw in the Hydrogen bonds c. Circle one Glycosidic bond d. Star one Phosphodiester linkage

What kind of bond is shown in letter B? (Select the best answer) А. Adenine B.- Cyne Guanne Thymane С. D.

The amino acid alanine, shown below, contains all of the following functional groups except A. an amino group. B. a methyl group. C. an ester group. D. a carboxyl group.

Which of the following molecules would you expect to have a lot of nitrogen (N) in it? Group of answer choices   A. carbohydrate B. protein C. polysccharide D. steroid E. fatty acid

Which of the following amino acid side chains CANNOT form hydrogen bond? O a. O b. C. Gln Tyr Pro d. Asn O Oe. Thr

The side chain of acetyl-L-lysine-OMe has a pKa=10.5 and its acid-dissociation reaction  is shown below.  see attachment for Question D.

Why are water and its derivatives useful as buffers in the cell cytoplasm?   A. H3O+ can serve as a strong base.   B. H2O can make hydrogen bonds.   C. H20 can serve as a strong acid and as a strong base.   D. H20 can serve as a weak acid and OH- can serve as a weak base.   E. H20 can serve as a weak base and as a weak acid.