Which organelle can be discribed as a large balloon-shaped organele

Mitochondria. The “powerhouses” of the cell, mitochondria are oval-shaped organelles found in most eukaryotic cells. As the site of cellular respiration, mitochondria serve to transform molecules such as glucose into an energy molecule known as ATP (adenosine triphosphate).

i think it is true in my reasonment ..

✿   this landform has a high elevation and a high relief

✿   this landform is a mountain