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| Q. |
Saliva is characterized by all the following except: |
| A. | Its concentration of K+ is the same as that in plasma. |
| B. | Its Na+&Clconcentration are lower than those in plasma. |
| C. | Its osmotic pressure and PH are lower than their corresponding values in plasma. |
| D. | It exerts antibacterial action. |
| Answer» A. Its concentration of K+ is the same as that in plasma. | |
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