Q3. Which of the following are true about cofactors for enzymes? Inorganic metal
ID: 280697 • Letter: Q
Question
Q3. Which of the following are true about cofactors for enzymes? Inorganic metal ions, such as Zn2 and Fe*, are the examples of cofactors. (B) Cofactors that are covalently bound to an enzyme protein are called prosthetic groups (ex. Heme). (C) An apoenzyme is the protein part of an enzyme that is not catalytically active until a cofactor is bound. (D) All enzymes are proteins. (E) Without cofactors, enzymes could not bind substrate(s). Which of the following about Michaelis-Menten kinetics (m-M) are true? A) It is applied when the steady-state assumption is hold B) kcat is called turnover number. ?) KM is numerically equal to the affinity between the substrate and the enzyme )The value of Vmax remains constant when the concentration of total enzyme doubles The value of KM doubles when the concentration of total enzyme doublesExplanation / Answer
Ans 3 : B) Cofactors that are covalently bound to an enzyme protein are called prosthetic groups (ex. Heme)
The cofactors are the non protein molecules which are covalently or even tightly bound to the enzyme molecule.
These are known as the prosthetic groups , and can be of two types : the inorganic ions or the organic molecules which are even complex known as coenzymes.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.