So the stems do not get air pockets in them.
more area on the stem to absorb water & nutrients
No!!!!! IT STOPS IT FROM GROWING IF YOU CUT IT ! sorry to yell but you may kill the plant (lol)
The stem of the plant contains tubes. These tubes act like straws. They pull the water up from the vase and through the plant. If they cut the stem straight across, it crushes the tubes. The plants will wilt much quicker. However, if they cut at an angle, more of the tubes stay open. This means more fresh water moves through the plant, and it will stay fresh longer.
this is due to the upward movement of water/sap in the plant which is called ascent of sap.
It is due to gravity. Cut the stems underneath water to lessen this effect. If not done, this will often cause an air bubble to form in the stem, so stopping water continuing up the stem.
If you mean cut from the plant - it's because they're no longer getting nourishment travelling up the stem from the parent plant. That's why they're packed in wet paper for travelling, and why you need to put them in water as soon as you get them home.
A plant clipping is a small section (normally a leaf on a stem) cut from a plant.
for example you can save the seeds that the plant made or on some plants you can cut off the stem of the plant and put it in water for yams you could cut a piece of the yam and plant that it really works
some will die some will split and grow, depents of the plant and amount of tissue damage.
The plant would wilt and die as it would not be able to receive water from the roots. For this reason cut flowers are placed in water to extend their life. If a vascular plant is subjected to cut its phloem in the stem region (leaving its xylem tissue intact), this plant will die of starvation because transportation of water and menerals is done by xylem and phloem transports the prepared food material to different plant parts. In a situation where phloem is dis-connected to the roots, the food supply to the roots will be stopped. Thus roots in the absence of nourishment will not be able to absorb water and minerals and the plant will die ultimately.
maybe yes maybe no Sure, Tapioca plant can be grown from a piece of stem provided, (1) the stem is from a full grown plant and (2) the bottom portion of the cut piece of stem is planted in the soil.
Yes - it's part of the transport of nutrients from roots to all parts of the plant. The process is osmosis, and the final discharge of water into the atmosphere is transpiration, but not all the plants do that do that only some.