nmdcat.online
BIO NMDCAT BIOLOGICAL MOLECULES
nmdcat.online June 27, 2026

A significant decrease in the cellular level of ATP would have the most immediate effect on the process of

A. Osmosis
B. Active transport
✓
C. Facilitated diffusion
D. Simple diffusion of gases

📝 Explanation

Active transport is the movement of molecules against a concentration gradient. This process is directly coupled to ATP hydrolysis as an energy source, for example, by the Na⁺/K⁺ pump. Passive processes like diffusion and facilitated diffusion are driven by the gradient itself and do not require ATP directly.

📖 Additional Information

  • Osmosis
  • Active transport
  • Facilitated diffusion
  • Simple diffusion of gases

Active transport is the movement of molecules against a concentration gradient. This process is directly coupled to ATP hydrolysis as an energy source, for example, by the Na⁺/K⁺ pump. Passive processes like diffusion and facilitated diffusion are driven by the gradient itself and do not require ATP directly.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

The specific three-dimensional shape of an antibody's antigen-binding site is an example of the relationship between a protein's structure and its function, primarily determined at the

Next Question

The complete hydrolysis of a molecule of a phospholipid, such as lecithin, will yield glycerol, two fatty acids, phosphoric acid, and 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 →