A cactus plant disintegrates when it gets too much water, because of its tissues. Its tissues aren't set up to work with continuous or large amounts of water. Instead, they're adapted to get as much of the infrequent and insubstantial amounts of water that they can from a bright, drab, dry, extreme, harsh desert environment. Overwatering and waterlogging cause cactus tissues to blacken, rot, and die.
Because that is pretty much the only thing availible.
That depends on what kind of plant it is. Some plants, such as cactus, do not need much water. Other kinds of plants need more. So you would have to ask about a specific plant in order to get a specific answer.It really depends on the plant. Some plants need more water than others, such as a cactus and a bean ,the bean needs more water than the cactus because the cactus stores water and beans don't.
Water lilies will have less. Water plants have stomata on the sides exposed to air. Or if totally submerged, there are no stomata present. A cactus is covered with stomata but not as much as average plants.
No, cactus plants don't live in water. There are two main types of cactus plants. One is the desert cactus, which survives in moisture deprived environments. Another is the jungle cactus, which survives in light deprived environments. The jungle cactus handles higher moisture levels better than the desert cactus does. But neither kind lives in water.
As much as 90% and more of the weight of a Hudson pear cactus [Cylindropuntia rosea] can be devoted to water related activities. The Hudson pear cactus has stems and branching arms that contract and expand. The flexibility enables the cactus to make room for changing amounts of water and watery products and solutions inside.
Cactus plants use their stems for storage. So that's where starches are stored. In fact, stems are where a cactus plant stores everything. Other, non cactus plants may use their roots for storage. But cactus roots are much too fibrous and shallow.
How much of the cactus plant is water depends upon the size of the cactus and the amount of water in moving, processing and stored forms. But no matter the cactus' size and regardless of how much or little water that it holds, the cactus devotes over 90% of its inside body parts to handling, circulating and building up supplies of water.
Cell vacuoles and hydrophilic proteins keep water in plants
Find a cactus that has nearly died of thirst and weigh it.Water the cactus until it stops absorbing water. Weigh the cactus again. Subtract the new weight from the original weight. That tells you how much water the cactus has absorbed.
That depends on what kind of plant it is. Some plants, such as cactus, do not need much water. Other kinds of plants need more. So you would have to ask about a specific plant in order to get a specific answer.It really depends on the plant. Some plants need more water than others, such as a cactus and a bean ,the bean needs more water than the cactus because the cactus stores water and beans don't.
Because a cactus can't grow in clayey soil and there is a lot of water in the marshes, the cactus does not need a lot of water
there are plants that can store water, but do not need much to survive, such as a cactus, they also don't have big leaves because that needs more water, and there is a lot of sun in the desert.