nmdcat.online
BIO NMDCAT Biological Importance of Water
nmdcat.online June 27, 2026

The concept of “aquaporins” is related to water’s biological role in a way that they are

A. Enzymes that catalyze the hydrolysis of water in photosynthesis
B. Membrane channels that facilitate the rapid, passive transport of water across lipid bilayers
✓
C. Proteins that increase the specific heat of the cytoplasm
D. Structural proteins that bind water to form the cytoskeleton

📝 Explanation

Aquaporins are integral membrane proteins that form water-specific channels. While water can slowly diffuse through the lipid bilayer, aquaporins allow for a much faster, regulated flux of water in tissues like kidney tubules, red blood cells, and plant roots where rapid osmosis is required.

📖 Additional Information

  • Enzymes that catalyze the hydrolysis of water in photosynthesis
  • Membrane channels that facilitate the rapid, passive transport of water across lipid bilayers
  • Proteins that increase the specific heat of the cytoplasm
  • Structural proteins that bind water to form the cytoskeleton

Aquaporins are integral membrane proteins that form water-specific channels. While water can slowly diffuse through the lipid bilayer, aquaporins allow for a much faster, regulated flux of water in tissues like kidney tubules, red blood cells, and plant roots where rapid osmosis is required.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

The primary mechanism by which water serves as a temperature buffer in a cell is the absorption and redistribution of heat energy required to break its

Next Question

During the process of cooking starchy food, the swelling and rupture of starch granules is primarily caused by the

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 →