Choose all the right answers. which are correct functions of the cell membrane? allows oxygen to enter allows carbon dioxide to enter stops harmful chemicals from entering stops harmful chemicals from exiting acts like a gate keeper

The correct functions of the cell membrane are:

Explanation:

The cell membrane is known to be the gatekeeper of a cell. This is because it selectively regulates which materials to let enter into a cell and which materials need to be exited from the cell. Gases like oxygen and carbon dioxide can easily pass through the cell membrane by diffusion. The cell membrane stops the entry of any kind of harmful component into the cell hence, protecting the cell.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

explanation:

0.07 g/cm³

1.37 g/cm³