Which of the following is true in regards to k_cat? K_cat can be determined only

Question

Which of the following is true in regards to k_cat? K_cat can be determined only if the concentration of enzyme [E] is known K_cat referred to as the turnover number. According to Michaelis-Menton kinetics, k_cat determines the amount of ES complex formation A and B A and C Which of the following can be determined from a Lineweaver-Burk plot? K_M k_cat V_max A and C all of the above Which of the following statement is incorrect about chymopepsinogen? It is a zymogen synthesized and stored in the pancreas a single polypeptide chain of 245 amino acid residues cross linked by two disulfide (-S-S-) bonds is activated in the small Intestine is a single polypeptide chain Which of the following statement is correct about chymopepsinogen activation? Activated by trpsinogen an enzyme cleaves a 15 unit polypeptide from the C-terminal end of chymopepsinogen alpha chymotrypsin is capable of self digestion phi chymotrypsin is an active form of enzyme alpha chymotrypsin consist of four disulfide (-S-S-) bonds Consider this reaction of glycogen with phosphate Glycogen_n + HPO_4^2- rightarrow Glucose -1-phospate + Glycogen_n - 1 What is the rate equation for this single step reaction? Rate = [Glycogen]^n[HPO_4^2] Rate = [Glycogen]^[HPO_4^2-] Rate = [Glycogen]^n [HPO_4]^2- Rate = [Glycogen]_n [HPO^2]_4 None of the above

Explanation / Answer

1) answer is C

Kcat determines enzyme substrate complex ES.

It is turn over rate and not turnover number.

2) km and vmax are determined by lineweaver-burk plot.

Answer is C) A & C

C) all r correct

D) (A) is correct. It activates chum of type in oven in digestive system.

E) (a) is the answer

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