2006-10-19 22:24:47 · 23 answers · asked by dazza g 2 in Environment
The answer is "Yes"! Your real question should be "How?"!
You need to look up Photosynthesis in your text book to answer that new question.
But you also need to be aware that plants respire too, and THAT process would REMOVE oxygen from the environment. So, the next question is "when do plants photosythesise more than they respire?" and "under what conditions might plants respire more than they photosynthesise?" The balance between these two is of crucial importance. You can get some ideas on this by understanding that phtosynthesis PRODUCES sugar, but respiration USES sugar. Sugar is the source of materials for plant growth - without a surplus of sugar, a plant will not be able to grow. It can convert the sugar into cellulose for cell walls and proteins for enzymes and other components of protoplasm etc.
So, when designing an experimental project, you set out to test the hypothesis that "plants produce oxygen", but you may end up testing this by weighing the plant (dry mass, not fresh mass of course - you don't want to get involved with the water that the plant may be taking on board). So you may guess that you would be testing to see whether the plant gives off oxygen, takes oxygen in or does not change the oxygen concentration of the atmosphere round it. But, measuring oxygen is not as easy as measuring dry mass, of course. Ideally, you might prefer to measure oxygen, but dry mass is a back door into the same subject!
2006-10-20 01:31:34 · answer #1 · answered by tanu 1 · 1⤊ 0⤋
Plants don't produce oxygen, oxygen is produced during the formation of a solar system inside stars. Plants do however liberate oxygen from water during the process of photosynthesis which is released back into the air as a gas. PLANTS DO NOT CONVERT CO2 TO OXYGEN. The CO2 is incorporated into sugars.
2006-10-20 00:11:47 · answer #2 · answered by uselessadvice 4 · 0⤊ 0⤋
Yes, plants produce oxygen during the day.
It's called photosynthesis.
They use the energy of the sun, the mineral and water from the ground, CO2 from the air and regenrate themselves. Once this process id finished, they release oxygen.
During the night it's the opposite though, they will release CO2.
Plant breeze like we do !
2006-10-19 22:28:50 · answer #3 · answered by Sylvain 2 · 3⤊ 0⤋
Yes... the byproduct of photosynthesis is oxygen. We can thank plant-life for 100% of the oxygen in our atmosphere today.
2006-10-19 23:24:20 · answer #4 · answered by Brooks B 3 · 0⤊ 0⤋
only green plants produce oxygen in the presence of light (in a process called photosynthesis)
2006-10-19 22:31:38 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Yes. photosynthesis is the process of turning co2 in tho 02 and energy for the plant that is why most leaves are green
2006-10-19 22:31:48 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Yes
2006-10-19 22:34:21 · answer #7 · answered by mk 2 · 0⤊ 0⤋
during photosynthesis yes CO2 is converted to oxygen.. however in the absence of light they respire converting oxygen to CO2.. just at a much slower rate.
2006-10-19 23:58:03 · answer #8 · answered by blue_cabbage 2 · 0⤊ 0⤋
during the morning they produces oxygen and absorb carbon dioxide, during the evening they absorb oxygen and release carbon dioxide
2006-10-20 02:19:21 · answer #9 · answered by Brandon 2 · 0⤊ 0⤋
yes cos they take in the carbon dioxide that we breathe out and we breathe in the oxygen that they release into the atmosphere
2006-10-19 22:36:38 · answer #10 · answered by sheritzy 2 · 0⤊ 0⤋