Effect of increased substrate concentration on enzyme activity?
- Decrease the rate of reaction
- Increase the reaction rate until all active sites are saturated
- Have no effect on the reaction rate
- Increase the rate of reaction in a straight diagonal line
Explanation
Increasing substrate concentration increases the reaction rate until all active sites are saturated, then the rate of reaction levels off.
As more substrate molecules are added to a system with a fixed amount of enzyme,
The chance of an enzyme molecule colliding with a substrate molecule increases,
Leading to a higher reaction rate.
However, at a certain point,
All enzyme active sites are occupied by substrate molecules, meaning there are no more available sites for additional substrate molecules to bind.
This saturation point results in a leveling off of the reaction rate, where further increases in substrate concentration won't significantly impact the reaction speed.
Related MCQs
پودوں کے کون سے اعضاء تولید میں مدد کرتے ہیں؟
- Stems
- Flowers
- Roots
- Leaves
اس سوال کو وضاحت کے ساتھ پڑھیں
وراثت کی بنیادی جسمانی اور فعال اکائی کو _____ کہا جاتا ہے؟
- Chromosome
- Gene
- Cell
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
پودوں کے پتوں کے ذریعے پانی کے بخارات خارج ہونے کے عمل کو کیا کہتے ہیں؟
- Absorption
- Respiration
- Transpiration
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
سبز پودے خوراک تیار کرنے کے عمل کو کیا کہتے ہیں؟
- Photosynthesis
- Respiration
- Transpiration
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
تپ دق (ٹی بی) کی بیماری کس وجہ سے ہوتی ہے؟
- Bacteria
- Fungus
- Virus
- Protozoa
اس سوال کو وضاحت کے ساتھ پڑھیں
