nmdcat.online
BIO NMDCAT ENZYMES
nmdcat.online July 11, 2026

In the lock-and-key model of enzyme action, the “key” is analogous to the _______, and the “lock” is analogous to the _______.

A. Product; Active site
B. Substrate; Product
C. Enzyme; Substrate
D. Substrate; Active site
✓

📝 Explanation

The lock-and-key model proposes that the enzyme's active site (lock) is a rigid, pre-shaped template perfectly complementary to a specific substrate (key).

📖 Additional Information

  • Product; Active site
  • Substrate; Product
  • Enzyme; Substrate
  • Substrate; Active site

The lock-and-key model proposes that the enzyme's active site (lock) is a rigid, pre-shaped template perfectly complementary to a specific substrate (key).

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

The phenomenon where an increase in enzyme concentration is no longer the factor limiting the reaction rate is correctly attributed to

Next Question

A mutation in the gene encoding a metabolic enzyme results in a complete loss of activity. The mutation is most likely in the region coding for amino acids that are

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 →