nmdcat.online
BIO NMDCAT CELL STRUCTURE & FUNCTION
nmdcat.online July 3, 2026

49. The biochemical compound that adds structural stability to animal plasma membranes, preventing them from becoming too fluid at high physiological temperatures, is

A. Ergosterol
B. Cholesterol
✓
C. Phytosterol
D. Carotenoid

📝 Explanation

Cholesterol inserts its rigid steroid ring core between phospholipid tails, stabilizing the membrane and regulating fluid properties.

📖 Additional Information

  • Ergosterol
  • Cholesterol
  • Phytosterol
  • Carotenoid

Cholesterol inserts its rigid steroid ring core between phospholipid tails, stabilizing the membrane and regulating fluid properties.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

48. The chemical component deposited in the outer epidermal walls of plant leaves to form a protective, waterproof waxy cuticle layer is

Next Question

50. The target structure for the assembly of the phragmoplast during plant cell cytokinesis is composed primarily of

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 →