CaCO3 Interpret each of these formulas. Help me please

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

Works together in the synthesis, modification, packaging, and transport of lipids and proteins

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient