Why is Zwitterion called internal salt?

Related questions

1. What amino acids are Zwitterions?
2. What is an effective buffer?
3. Where do amino acids come from?
4. Why do amino acids exist as Zwitterions?
5. At what pH is a buffer most effective?
6. What factors cause proteins to denature?
7. What are examples of buffers?
8. Why do amino acids become Zwitterions when dissolved in water?
9. Why is denaturing proteins important?
10. What is an example of denaturation?

Tags

1. #positive
2. #electrical
3. #charge
4. #contains
5. #electrically
6. #negative
7. #neutral
8. #dipolar
9. #within
10. #different
11. #known
12. #inner
13. #opposite
14. #molecule
15. #charges
16. #zwitterion
17. #locations