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

The primary function of an isoenzyme, such as lactate dehydrogenase (LDH), in a physiological context is to

A. Catalyze the same reaction but under different kinetic properties or regulatory conditions in different tissues
✓
B. Bind to the same substrate to form different products depending on the organ
C. Act as a competitive inhibitor for the original enzyme
D. Combine several different metabolic pathways into a single rate-limiting step

📝 Explanation

Isoenzymes are multiple forms of an enzyme that catalyze the same reaction but differ in kinetic properties, allowing for tissue-specific metabolic tailoring.

📖 Additional Information

  • Catalyze the same reaction but under different kinetic properties or regulatory conditions in different tissues
  • Bind to the same substrate to form different products depending on the organ
  • Act as a competitive inhibitor for the original enzyme
  • Combine several different metabolic pathways into a single rate-limiting step

Isoenzymes are multiple forms of an enzyme that catalyze the same reaction but differ in kinetic properties, allowing for tissue-specific metabolic tailoring.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

Among the following statements, the one that correctly links an enzyme to its function is

Next Question

A non-protein organic molecule essential for the catalytic activity of an aminotransferase enzyme is most likely to be derived from a

Back to All Questions

🔗 Related MCQs

Concerning the duration of muscle twitches, if a skeletal muscle twitch lasts approximately 10-100 milliseconds, what is the expected duration of a typical smooth muscle contraction?
July 28, 2026
The physiological response to hypoxia (low oxygen) differs among muscle types. Which muscle type is most susceptible to irreversible damage following a brief period of hypoxia?
July 28, 2026
A medical relevance of understanding muscle tissue differences is the development of calcium channel blockers. These drugs are primarily used to treat hypertension (high blood pressure) and angina. They exert their biological effect mainly by acting on:
July 28, 2026
During the process of cell differentiation, which muscle type loses its ability to divide and form new cells almost completely, relying solely on hypertrophy for growth?
July 28, 2026
The functional relationship between the shape of a muscle cell and its tissue type is evident when observing spindle-shaped cells. This specific morphology allows the cells to:
July 28, 2026

Categories

View all →