Examlex
Ions need to move in and out of cells through cell membranes. Direct diffusion of ions through the lipid bilayer of the cell membrane is difficult because ions are not soluble in these nonpolar regions. Describe three mechanisms by which ions are transported through cell membranes.
Synthesis
The combination of ideas, information, or data to form a coherent whole or to derive new insights.
Double Helix
The structure of DNA, characterized by two strands that wind around each other like a twisted ladder.
DNA
Deoxyribonucleic acid, a molecule that carries the genetic instructions used in growth, development, functioning, and reproduction of all known living organisms.
Discovered
The act of finding something or someone that was previously unknown or unrecognized.
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