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Describe how proteins help get things in or out of the cell if those things don't naturally go across?

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What things in nature produce proteins?

Pretty much any living organism produces proteins since proteins are necessary for life. This includes everything from plants to fungi to microbes to cells. Viruses cannot pro

What types of things do proteins do in cells?

Proteins perform a multitude of tasks in cells including acting as structural support, catalysis of chemical reactions (enzymes), molecule and ion transport, cell signaling, r