Active transport: Movement of materials across a membrane that requires an input of energy from a cell. Movement of material against the concentration gradient (from low concentration to high concentration)
Passive transport: Movement of materials across a membrane that does not require energy from the cell. Movement of material against the concentration gradient (from high concentration to low concentration)
Hope this helps!
You could make this absolutely anything. you could say you are going to have a monarchy, which is a queen or king. with education you could say, free, or starts at 11, or something that you would change in your schooling. doesn’t seem like it needs to be serious.
Answer:
12. Brain abscesses
13. Cytotoxic agents
Explanation:
I didn't really understand 14 and 15,
if you need an example of cytotoxic agent one of them is Hydrochloric acid which is one of the most common acids
Hope it helps.
Answer: These villi increase the surface area for more efficient food absorption. Within these villi, are present numerous blood vessels that absorb the digested food and carry it to the bloodstream. It is hence from the bloodstream, the absorbed food is delivered to each and every cell of the body.
The process of exchanging gases (carbon dioxide for oxygen) occurs at the lung alveoli. Alveoli are coated with a moist film that dissolves air in the lungs. Oxygen diffuses across the thin epithelium of the alveoli sacs into the blood within the surrounding capillaries.
In exocytosis, a cell releases substances into its environment. During exocytosis, vesicles that contain substances are moved to the cell membrane and fuse with it. This cell membrane function has three results: the total surface of the membrane increases, toxins or waste products are eliminated, and proteins become part of the plasma membrane.
Explanation:
thats all of the things for openings in villi the alveoli and the cell membrane
