wiz-icon
MyQuestionIcon
MyQuestionIcon
25
You visited us 25 times! Enjoying our articles? Unlock Full Access!
Question

Which one of the following graphs shows the relationship between the rate of an enzymatic activity and substrate concentration(S)?


A

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D


Increase in substrate concentration increases the rate of reaction due to two factors: (i) occupation of more and more active sites by the substrate molecules: (ii) higher number of collisions between substrate molecules.

The rise in velocity is quite high in the beginning but it decreases progressively with the increase in substrate concentration. If a graph is plotted for substrate concentration versus reaction velocity, it appears as a hyperbolic curve. A stage is reached where velocity is maximum. It does not increase further by increasing the substrate concentration. At this stage, the enzyme molecules become fully saturated and no active site is left free to bind additional substrate molecule.


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Enzymes
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon