Abiologist working in a lab adds a compound to a solution that contains an enzyme and its substrate. this compound binds to the enzyme and decreases the rate at which the enzyme converts substrate to product. this decrease cannot be overcome by increasing the concentration of substrate to the reaction mix. therefore, which of the following is true of the compound?

a. the compound is an allosteric activator.
b. the compound is an allosteric inhibitor.
c. the compound is an inhibitor that binds to the active site of the enzyme.
d. the compound is a catalyst for the reaction.

Defend or refute the argument that the government has too large a presence in the agriculture industry.

Match the descriptions / definitions with the term they best describe 1. three dimensional relationship of the different polypeptide chains in a multisubunit protein or protein complex 2. common folding pattern in proteins in which a linear sequence of amino acids folds into a right-handed coil stabilized by internal hydrogen-bonding between polypeptide backbone atoms. 3. the amino acid sequence of a protein 4. a region on the surface of a protein that can interact with another molecule through noncovalent bonding. 5. three-dimensional arrangement of alpha-helices and beta-sheets within a single polypeptide, typically stabilized by a variety of noncovalent bonds, including ionic and hydrogen bonds, and nonpolar interactions / hydrophobic force. 6. the chain of repeating carbon and nitrogen atoms, linked by peptide bonds, in a protein. 7. common structural motif in proteins in which different sections of the polypeptide chain run alongside each other and are joined together by hydrogen bonding between atoms of the polypeptide backbone. 8. portion of a polypeptide chain that has a discrete tertiary structure of its own and can often fold independently of the rest of the chain 9. regular local folding patterns in a protein, including alpha-helix and beta-sheet a. primary structure b. beta-sheet c. protein d. coiled-coil e. polypeptide backbone f. secondary structure g. side chain h. tertiary structure i. binding site j. alpha-helix k. quaternary structure l. protein domain

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?