Penicillinase, also known as β‑lactamase, is a bacterial enzyme that hydrolyzes and inactivates the antibiotic penicillin. Penicillinase follows simple Michaelis–Menten kinetics and reaches half its maximal rate of 6.8 × 10 − 10 µmol ⋅ min − 1 when the penicillin concentration is 5.2 × 10 − 6 M . What would happen to the initial reaction velocity, V 0 , of penicillinase if the penicillin concentration were 10.4 × 10 − 6 M?

Answer : The initial reaction velocity would approach

Explanation :

According to Michaelis-Menten kinetics,

where,

S = substrate concentration =

= initial reaction velocity = ?

Now put all the given values into the above formula, we get:

Therefore, the initial reaction velocity would approach

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.