What term describes an inactive precursor of an enzyme such as the precursors to

Question

What term describes an inactive precursor of an enzyme such as the precursors to protease enzymes produced by the pancreas? A. zymogen B. allosteric enzyme C. hydrolase D. ribozyme E. isozyme The two most common amino sugars, beta-D-glucosamine and beta-D-galactosamine are formed from their respective carbohydrates by substitution of an amine group for the hydroxyl on carbon. A. 1 B. 2 C. 3 D. 4 E. 6 which of the following polysaccharides contains exclusively glucose in beta(1 rightarrow 4) glyosidic bonds? A. chitin B. glycogen C. amylopectin D. cellulose E. amylose In animals, the bulk of energy is stored as. A. glycerophospholipi B. glycogen C. triacylglycerols D. waxes E. fatty acids ds 2, 3-bisphosphoglycerate is an allosteric factor to binding of O_2 by hemoglobins. A. heterotropic positive B. homotropic positive C. heterotropic negative D. homotropic negative E. none of the above The three-dimensional structure of macromolecules is formed and maintained primarily through noncovalent interactions. Which one of the following is not considered a noncovalent interaction? a. Carbon-carbon bonds b. b.Hydrogen bonds c. Hydrophobic interactions d. Ionic interaction e. van der Waals interactions Carbon-carbon bonds

Explanation / Answer

24: A

Zymogens are the inactive precursor of an enzyme.

The allosteric enzyme is the enzyme which has an activating or inhibiting site present on the enzyme other than the catalytic side.

Hydrolase is the class of enzyme classification.

Ribozymes are the RNA molecules work as an enzyme.

Isozyme is the isoform of an enzyme having same enzyme classification but different Km and Vmax.

25: B

At C-2 position this substitution occurs.

26:D

Only Cellulose of this given group has such type of bonding.

27:C

Triglycerides are the main energy source .Free fatty acids and glycophoslipids are found in very low concentration. Wax are inactive form and acts other works. Glycogen also provides a good source of energy but not as much as triglycerides.

28:C

BPG is hetero-tropic allosteric inhibitor which inhibits oxygen binding and sifts the O2 binding curve to the right side and thus favored O2 release.

29: A

Carbon -carbon bond or covalent bonds are not considered.

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