Question 4
The potato tuber, carrot root and banana fruit have something in common. What is it?
The right answer is the one marked above.
They all store food in parenchyma acting as storage tissue. Parenchyma that stores food is called storage tissue, and all three are examples given in the chapter.
They are not all roots — the potato is a stem tuber and the banana is a fruit. What they share is the tissue, not the organ.