The movement of water molecules through a selectively permeable membrane is referred to as osmosis. During osmosis, water moves from an area of lower solute concentration to an area of higher solute concentration to achieve equilibrium. This process is vital for maintaining cellular homeostasis in biological systems.
premable
social policy
Secure the blessings of liberty to ourselves and our posterity
The proteinshave certain 'identifiers' attached to them, which only allow certain particles through, making it selectively permeable.
We the people of the United States, in Order to make a more perfect Union, establish Justice insure domestic tranquelity, provide for the common defence, promote the General Welfare, and secure the Blessings of Liberty to ourselfs and our Posterity, do ordain and establish this Constitution for the UNITED STATES of AMERICA.this is the preamble of the constitution this is NOT the answer to the question.
Semi-permeable means that which only allows certain things to pass through. The cell membrane needs to be semi permeable so that it only allows beneficial things (say, ions or water molecules) into the cell whilst keeping harmful things out (eg. toxins and viruses). That's all. Hope this helps you (:
According to the preamble of the United States Constitution, it is "We the People" who agree to the general purposes and goals of the government. This phrase emphasizes that the authority of the government is derived from the consent of the governed, reflecting the collective will of the citizens. The preamble outlines the objectives of establishing justice, ensuring domestic tranquility, providing for the common defense, promoting the general welfare, and securing the blessings of liberty. Thus, it underscores the democratic principle that the government exists to serve the interests of its people.