21. Field lines begin on positive charge and terminate on negative charge . 22. When embryonic cells are covered with hCG, they acquire a strong negative charge . 23. Ingested fat, when broken down into fatty acid molecules, has a negative charge . 24. When the sinoatrial cells are resting, they have a negative charge on their membranes. 25. This overexpression of sialic acid on surfaces creates a negative charge on cell membranes. 26. :The strongest bases typically bear negative charge and lone pairs on the same atom. 27. Most thunderstorms have positive charges near the top and negative charges at the bottom. 28. Organic materials in soil increase the CEC through an increase in available negative charges . 29. :Electrons that we observe have positive mass and negative charge . 30. Repulsion between the negative charges would raise the energy value near the transition state.
