I guess that is:
Within the capillaries of the lungs, gases are exchanged by diffusion; O2 diffuses from the alveolus to the bloodstream and CO2 diffuses from the bloodstream to the alveolus.
Answer:
Ribosome, I am not sure just a lucky guess! Hope you get it right!!
Answer:
Lignin is found in plant cell wall, particularly in middle lamella of cell wall (eg. sclerenchyma tissue).
<u>Role of lignin in plants:-</u>
- It helps in conduction of water.
- It provides mechanical support to the plant.
- It also nurtures resistance to many kinds of stress.
Answer:
Liver failure we can die or have a disease
Hiya,
The plasma membrane is sorta like the military of the cell. It's function (it's meaning) is to serve and protect the cell from it's scary surroundings! Composed of proteins, it is very selectively permeable. Meaning it allows certain types of molecules or even ions to pass on through it, as in, active or passive transport.
So, the answer might be...
A.) It is selectively permeable to certain substances.
Hope this helps!
