Do flowers in a vase give off oxygen just as a potted plant would?
138132
That depends on four things.\n\n1)The flower has to be alive. Dead flowers use oxygen and give off carbon dioxide.\n2)The flower has to have enough green area. Only the green parts of plants are capable of making oxygen. But all parts of the plant use oxygen. For a flower in a vase to produce any oxygen the green parts have to be big enough to produce more oxygen than the whole flower is burning. A flower with a lot of leaves attached might produce oxygen. A flower that is just a stem with leaves removed will not.\n3)The flower has to have enough light. Plants require light to produce oxygen. As the light becomes dimmer and dimmer the plant produces less and less oxygen. In very dim light the plant will be burning more oxygen then it is producing. In darkness the plant will be producing no oxygen at all and still burning the same amount. Some flowers will be capable of producing oxygen under a normal light bulb, but most will not.\n4)The flower has to be in water. Plants make oxygen by destroying water. If the flower is in a vase without water it can only use oxygen.\n\n\n\nThe short answer is that a normal flower with most of the leaves removed in a vase inside the house will be burning oxygen, not making  it.
370839
yes...\nLets out the most O2 and atmosphere fixing gasses of ANY OTHER PLANT.  People that smoke it are nicer, not ready to kill someone...not like beer or other drugs
122286
>>>>What happens with the pollen from Flower A\n\nNothing much. Any that gets scraped off will almost certainly die. This isn't really any different from what would happen if you placed horse semen inside a dog. The pollen has alimited lifespan after which it dies, and it can't fertilise anything before then, so it simply dies.\n\n\n\n>>>>Since I'm assuming it can't pollinate Flower B with it\n>>>>or can it?\n\n\nIt would be very unlikely. As other have mentiond cross pollination does occur occassionally, but 99.99999% of the time it would simply die. You can't pollinate an oak flower with clover pollen under any cicrcumstances.
883000
Yes humidity does affect the growth of plants but the effect is greater in conditions of low humidity (dry).  When it is dry many plants will minimise opening of their stomata to reduce water loss this also has the effect of slowing gas exchange.  Plants need to take in CO2 for photosynthesis, if the stomata are closed this decreses the rate of photosynthesis and therefore the plant has less sugars created.  When the plant has less sugars (food) it can't grow as much.  \nSwamps can have the effect of flooding the root systems of plants so they don't work properly.  There are specially adapted plants that can survive in swamps, most can't.\nHope this helps
760691
try feeding a simple plant, such as a rose or carnation, with different juices or beverages. (milk, different kinds of soda pop, lemonade,etc.) make sure you do a regular water one as a control.\n\nsimply place the flowers in vases with the same amount of beverage in each vase.  \n\nyou might need around 2 weeks to get your finished results with your flowers, so i hope you are not in a hurry.
130872
not neccessarily. the heat will likely have a "ph effect" on the plants. if doesn't mater if the water is cold or hot, but it rather does matter if it has nutrients and sun.\n\nalso, too hot of a water will likely cook the roots, which means a dead plant! What does affect plant growth is the amount of sun it has.\n\nhumidity does have it affect on plants. humidity it basically the heat of the water in the air (people say its kinda sticky like)\n\nso overall answer, always use room temperature water for best results!
207047
Does cutting flower stems under water really help prolong the life of the flowers in the vase?\n\nThey say that if you cut the stems in air, air bubbles get in the stem and prevent water from traveling up to the leaves and flowers, so the flower wilts sooner.
492704
it would incease exponentially... plants take in the CO2 and produce oxygen.  We take in oxygen and produce CO2.  without plants, we would die.\n\namaya is wrong by the way
799464
Blood does not need oxygen to be red.  Blood is never blue.  Just because a hose is green, it doesn't mean the water coming out will be green as well. (referring to veins)
1100760
Plants are living things, and like us, need noses to breathe.  The 'noses' of plants are tiny holes called stomata (s), stoma (p) at the underside of leaves.  These stoma help the plant exchange gases with its surrounding.  Oxygen is produced during the day as the byproduct of photosynthesis, when the plant takes in carbon dioxide in the presence of sunlight to make food.  At night, the plant rests and does not make any more food, thus consuming oxygen.  This whole process is called respiration.
815771
Well plants are organisms that don't breathe in oxygen. They breathe in carbon dioxide.
887182
By experience, I know roses live the longest if cut sideways, cutting at 45 degree angle so they don’t sit flat on the bottom of the vase, for better water absorption.  They also live longer if with leaves, as leaves help to feed the bloom. But be sure to remove leaves which touches the water on the vase as they rot and make the life of rose shorter.☺
1041403
Spirogyra does not breathe per say.  It respires, which is an energy conversion process that takes place in the cytoplasm and mitochondria of its cells.  It also takes in oxygen from its surroundings through the process of diffusion.  Since it is a photosynthtic organism it also takes in carbon dioxide and water to form its own food.   So It also receives oxygen from the water that is destroyed as it is used in the photosynthetic process.
556905
Well, technically plants spend carbon dioxide and produce oxygen.I think... I would think that since most plants continue to grow until they die, that the bigger they get, the more carbon dioxide they use, and the more oxygen they produce.
216895
If you're talking about flowers on an apple tree, then their function is the same as any other flower - reproduction.\n\nBut perhaps you're talking about Apple flour... http://www.flickr.com/photos/jenniewoo/21528395/ :)
1126902
Actually a large enough container may have enough oxygen without the holes. Just as important is keeping a decent air flow to prevent fungal growth. There are many fungal species that attact living insects. High humidity and stagnant air promote fungi over insects. The best way to rear a caterpillar is to keep them in a paper bag or a gauze sleeve that is slipped over the host plant.
875787
Well, this happened once before.  Originally the earth had a very low concentration of atmospheric oxygen and oxygen was toxic to most organisms (they were all single celled back then).  But as organisms started to develop photosynthesis, oxygen was released into the atmosphere in huge amounts causing a massive extinction.  Now most organisms need or tolerate oxygen.  I'm not sure what would happen if the %O2 was increased now......I bet that plants wouldn't like it though.