Answer:
An organelle is a structure within a cell which has specific jobs to peform in the cell (it functions like an organ for our body, except it is within the cell itself!)
Explanation:
The organelles in our cells do a lot for us, and they are extremely important for our survival! The organelle ribosome helps assemble protiens, and another organelle called the mitochondria produces chemical energy called ATP (adenosin triphosphate). Perhaps the most important organelle is our nuclei, which store all of our DNA and genetic information! (Note- I'm not listing all of our organelles and their functions here, but you can find a lot more!)