Which of the following located in the active site of the enzyme chymotrypsin participates in acid-base chemistry?

The side chain oxygen of serine

The amide group of glycine

The hydrophobic pocket Histidine

The amide group of serine

what is the substrate in Urease test? what is the enzyme in urease test? what is the pH indicator in the urease test? what is the end products in the urease test? what genera is the urease test helpful in identifying?

The simple Michaelis-Menten model applies only to the initial velocity of an enzyme-catalyzed reaction, that is, to the velocity when no appreciable amount of product has accumulated. What feature of the model is consistent with this constraint? Explain.

​​​​​​1.) Describe the steps of aminoacyl-tRNA charging. What enzyme catalyzes all of these reactions?

2.) Describe how translation is regulated by phosphorylation of eIF2α.

3.) Define an operon. Why are they advantageous for bacteria?

which of the following is true of PCR?

a. the enzyme used denatures at 45 degrees celsius

b. it requires primers that bind to the target DNA

c. it synthesizes RNA molecules

d. all options are true.

Which of the following is a mechanism by which cells ensure a strong response to a small amount of ligand?

Levels of Protein Structure

Enzymes are_____________________ functioning as ________________________.    If digested by something like typsin (a digestive enzyme!), their ______________________structure is lost. If denatured, they will also lose activity, so ____________________, ______________________, and ___________________ structure is also important for proper functioning.

1. Describe the test commonly ordered as cardiac enzymes

2. Explain the rationale for serial cardiac enzyme blood specimen collections.

3. Examine potential sources of error for chemistry testing procedures.

1. Chlamydomonas is a green alga that produces isogametes.

True

False

2.

The difficulties of replicating the ends of a linear DNA molecule are solved by the enzyme called