Just do it. Parents have alot of pressure not just raising you to be able to take care of yourself when you're older but also financial, job, health and just working on keeping the family together is alot of the pressures they have, so just try to get along with them, you'll be glad you did.
She's probably not yelling at you just talking sternly to you! Always listen to them the first time they ask you to do something you get better results if you do. Even though you did it eventually she's going to be upset with you for not doing it the first time she asked.
Probably cuz they were mad at you for having to tell you in the first place or maybe it wasn't up to there standards when you completed the task. It might seem like your getting yelled at a lot but when I go back home to visit my rents and little sis she screams and yells at them saying "y'all are always making me do unfair stuff" but from an observers point looking in she should have had the common sense to do certain things and should have done the others without question, but she thinks that they are being unreasonable and unfair. What she can't see is that it is disrespectful to not do what your parents asked. Because some things should be second nature; washing off your dish when your done eating and put it away in dishwasher, taking out trash when it's full instead of putting more on top, or pitting dirty cloths in the hamper when you take them off instead of discarding them.