why could a salt solution be used as an antispetic for a cut?

Question

i need a biological answer

thank you

Answer 1

The hypertonic solution interferes with the homeostasis in the cells of bacteria which kills them or at least slows their reproduction so your body's immune system can control the invading bacteria.

Salt water can also be used to gargle when you have a sore throat because it will kill off bacteria for the same reason.

Answer 2

the presence of NaCl will cause an increase in the osmotic potential present between the cell and the external environment. this means that fluid which is in the bacterial cell will be forced into the external environment causing cell lysis and destruction of the cell. this is why salted meat is a commonly used preservative in the food industry