State two factors that affect enzymatic activities

K.C.S.E Biology Q & A - MODEL 2016PP1QN13

State two factors that affect enzymatic activities

(b)Explain how one of the factors stated in (a) above affects enzymatic activities.

answers

• Temperature PH co- factors, co- enzymes; enzyme product concentration; substance concentration/ metabolic poison

(b)

• Temperature- increase in temperature increases rate of enzymatic activity upto an optimum
•  Low temperature decreases enzymatic activity/ too high temp above optimum point denatures enzymes.
•  Ph- Enzymes work best at optimum ph/extreme ph denatures enzymes.
•  Enzyme conc – Increase in conc. increase enzymatic activity.
•  Co- enzymes – complements enzymes increasing rate of activity
•  Substrate concentration increase enzymatic activity up to certain level.