MCQOPTIONS
Saved Bookmarks
| 1. |
The ion most abundant in cells and most permeable to cell membrane is ____________ |
| A. | K<sup>+</sup> |
| B. | Ca<sup>2+</sup> |
| C. | Na<sup>+</sup> |
| D. | H<sup>+</sup> |
| Answer» B. Ca<sup>2+</sup> | |