it may or may not depending on speices.
The cactus has the ability to store water in its fleshy stem so it can survive long periods of drought.
Cactus are desert plants.Their leaves have turned into thrones.
A cactus has no leaves but does have a stem.
Cactus
cactus
The desert cactus
The roots absorb water and that makes the stem grow
A cactus can store water in its fleshy stem and this enables it to survive periods of drought.
In most species the stem has evolved to be photosynthetic and succulent,while the leaves have evolved into spines,this helps it adapt to hot and dry environments.
The stem of a cactus performs the function of a leaf because it has evolved to carry out photosynthesis. In some cacti, the stem is able to produce chlorophyll and carry out photosynthesis, enabling the plant to generate energy from sunlight. This adaptation allows cacti to survive in arid environments where leaves would lose too much water through transpiration.
In a cactus the leaves have been reduced to spines, to reduce the surface area from which water can be lost and to deter animals from eating the plant. As there are no leaves, photosynthesis must take place in the stem.
in a cactus there are no leaves and inplace it has spines so the process take place in its stem