Question

where is the extra food made by leaves stored

Answer 1

The food manufactured by the leaves is stored in the flashy part of leaves, root, stem, fruits and seeds. 

Many plants store food in the form of starch in their leaves or in the modified roots such as potato. 

Many succulent plants store water and nutrients in modified leaves such as Aloe, ice plant, Sedums and some Agaves.

Answer 2

"The extra food manufactured by the leaves is mainly stored in the flashy part of leaves, root, stem, fruits, and seeds.

Leaves make food through the photosynthesis process. It is a process in which "carbon dioxide and water" are involved in the "presence of sunlight and chlorophyll". It mainly forms carbohydrates like glucose which is used by plant cells for growth and different life processes.

Usually, plants secure food in the form of "starch" in their leaves and also in the modified roots such as potato."