Transport Across a Cell Membrane. The cell membrane is one of the great multi-taskers of biology. It provides structure for the cell, protects cytosolic contents from the environment, and allows cells to act as specialized units.
How to Amend the Constitution. Article V of the United States Constitution provides authority and instructions for amending the Constitution. Amendments can be proposed by Congress or by constitutional convention. Congress then decides how to ratify the amendment if approved by Congress or convention.
There are a couple ways that the U.S. Constitution could be formally amended. First Congress could adopt a proposed amendment (2/3 majority vote in both House of Representatives and Senate) and then send that proposed amendment to the state legislatures to be adopted - 3/4 majority required.