nmdcat.online
BIO NMDCAT Factors that Affect the Rate of Enzyme Reactions
nmdcat.online July 11, 2026

During enzyme-catalyzed reactions, a gradual increase in substrate concentration initially produces a rapid increase in reaction rate because

A. The enzyme becomes permanently activated
B. More enzyme-substrate complexes are formed per unit time
✓
C. The enzyme synthesizes additional active sites
D. Product molecules act as activators

📝 Explanation

At low substrate concentrations, many enzyme active sites are unoccupied. Increasing substrate concentration increases the frequency of enzyme-substrate complex formation and accelerates the reaction.

📖 Additional Information

  • The enzyme becomes permanently activated
  • More enzyme-substrate complexes are formed per unit time
  • The enzyme synthesizes additional active sites
  • Product molecules act as activators

At low substrate concentrations, many enzyme active sites are unoccupied. Increasing substrate concentration increases the frequency of enzyme-substrate complex formation and accelerates the reaction.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

In an enzyme assay, doubling both enzyme concentration and substrate concentration under suitable conditions generally results in

Next Question

The reaction catalyzed by an enzyme reaches maximum velocity when

Back to All Questions

🔗 Related MCQs

An increase in the incidence of ectopic pregnancies within a population can often be epidemiologically correlated with a prior increase in the prevalence of which sexually transmitted disease?
July 16, 2026
In the life cycle of Herpes Simplex Virus 2 (HSV-2), the virus travels along nerve fibers to reach the sensory ganglia. The cellular mechanism responsible for this retrograde transport utilizes:
July 16, 2026
A defining characteristic of the lesions associated with the secondary stage of syphilis is that they:
July 16, 2026
The causative agent of genital herpes, HSV-2, is enveloped. The biological significance of this viral envelope in the context of transmission is that it makes the virus:
July 16, 2026
The structural basis for the severe cardiovascular complications seen in tertiary syphilis, such as aortic aneurysms, is the chronic inflammation and destruction of:
July 16, 2026

Categories

View all →