Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

\"TRUE\" in the statment if the statement is FALSE, rewrite it correctly in the

ID: 693579 • Letter: #

Question

"TRUE" in the statment if the statement is FALSE, rewrite it correctly in the Do not simply negate a false statemen 1. (6 pt) space celor he following statements, if the statement is TRUE, write space below the statement. primary structure EXAMPLE: Protein three -dimensional structure determines This is false, so rewrite it Pretein pnimary structure determines This rewrite is not acceptable: Protein not determine primary structure protein must have a specific three-dimensional structure in order to B. A kinase catalyzes a redox reaction. C. The dominant form of phenylalanine at pH 7.4 has a carboxylate group in its side chain. D. Many dehydrogenases have NAD" as a coenzyme.

Explanation / Answer

A.            TRUE : The 3-D conformation of a protein molecule is determined by its amino acid sequence. And the precise shape of each protein molecule determines its function in a cell.

B.            False : kinase is an enzyme that catalyzes phosphorylation i.e., the transfer of phosphate groups from high-energy, phosphate-donating molecules to specific substratesand not the redox reactions.

C.            False : Phenylalanine is an -amino acid substituted with benzyl group. At pH 7.4 the carboxylate group will be unprotonated and the amino group will be protonated but a new carboxylate group will not turn into carboxylate group from benzyl group.

D.            TRUE : NADH stands for nicotinamide adenine dinucleotide, an important pyridine nucleotide functioning as an oxidative cofactor for dehydrogenases, reductases and hydroxylases.