Answer:
Remarkably efficient alveolar macrophages crawl freely along the internal and external alveolar surfaces
Explanation:
The alveolar macrophages are present on the internal lumenal surfaces of the alveolar ducts, the alveoli, and the bronchioles.
Alveolar macrophages are phagocytes that uses several surface receptors to release many secretions, to interact with other cells and molecules.
But the alveolar macrophages are intact to the inner surface only and do not crawl freely along the internal and external alveolar surfaces.
Hence, the correct option is " C".
Answer:
Through denitrification. Nitrates are converted back to N2 gas by denitrifying bacteria. N2 gas is also returned to the atmosphere through volcanos.Explanation:simple science
Answer 1:
The Correct options are <u>"A and C"</u>
Answer 2:
The Correct Option is <u>"Placing channel proteins in the membrane"</u>
Explanation:
There is a bigger number of a hydrophilic particles outwardly of a cell than within. Distinguish the conditions that could level the intracellular and extracellular convergences of this particle.
Not embeddings any channels proteins balance the extracellular and Intracellular fixations. Furthermore, putting just intracellular coordinated increments intracellular fixation. These two alternatives aren't right.
