If you hold a salty cracker in your mouth long enough, it will begin to taste sweet. What is responsible for this change in taste?

Video transcript

Hi everyone, here's our next problem. If you chew a piece of salty potato slice for a long time, it starts tasting sweet because let's work our way through our choices. Choice A says salt present in the potato slice is converted by the salivary amylase enzyme. Um Well that's not correct. The salt doesn't go anywhere, Salt doesn't get converted into anything. So that is definitely not a description of what's going on here. Choice B says potato contains sucrose inside it. No, that's not correct. The potato is a starchy vegetable um containing starch. So choice be not our correct answer. Uh Choice E says potato contains starch that is digested into glucose by enzymes present in saliva and that is correct. The enzymes break down the starch. Starch is a polymer of glucose as we recall. So if we chew on this starchy potato slice, um for a long time our saliva enzymes are gonna start breaking it down and as it breaks it down, the starch is broken into glucose so that salty potato slice will start tasting the glucose and it will start tasting sweet. So choice C. Is correct. Choice D. Is none of these. So that's not our answer, since we did have a correct answer. So once again, if you chew a piece of salty potato slice for a long time, it starts tasting sweet because Choice C, potato contains starch that is digested into glucose by enzymes present in saliva. Thanks for watching. Hope to see you in the next video