If you were to jog 1 km a few hours after lunch, which stored fuel would you probably tap? a. muscle proteins b. muscle and liver glycogen c. fat in the liver d. fat in adipose tissue

Video transcript

Hello. Everyone here's our next question. In what form is energy stored in our muscles and liver. So let's look at our answers here. Well Choice A. Is glucose. And our body does use glucose to produce energy but and glucose circulates around in the blood. But we cannot store energy as glucose. And this is because glucose is water soluble. And as a result if there's too much glucose in a cell then water tries to dilute that. Um and the cells become hyper tonic and can actually lice so it can cause cell damage. So it's not safe for our body to have too much glucose circulating around. So we've developed this storage system and that storage system is what we have in Choice B. Which is glycogen. And glycogen is a polish sacha ride of glucose and it can be stored in muscles and liver to be broken down back into glucose when our body needs more. So we have our correct answer. But let's just look at the other two and see why they're not correct. Starch. Also used to store energy also a policy right of glucose but is the form to store energy in plants not in humans or other animals. So Choice C. Is not correct. And choice T lactate it builds up in muscles but it builds up as a product of anaerobic respiration when our body has to switch to that lactate builds up so it's not a storage system for energy. So Choice D. Is not correct. Our answer is B. Glycogen to store energy and muscles and liver. Thanks for watching. See you in the next video.