MCQ
Which of the following statements is INCORRECT?
- AThe potential difference across the cell membrane is because of the difference in the concentrations of $K ^{+}$and $Na ^{+}$ across the cell membrane.
- BBoth $Na ^{+}$ and $k ^{+}$ control muscle contraction.
- ✓$Na ^{+}$ ion is major cation inside the cell within cell fluid.
- DNaCl is the source of gastric acid.
