Do the plants give Carbon Dioxit at night time?

Question

Plants give oxygen during day but at night time do they give Carbon Dioxit?

Answer 1

I would guess that you're asking this question because of the absence of sunlight at night.  Although this has plenty to do with photosynthesis, it has very little to do with the plant's conversion from carbon dioxide to oxygen.  Plants will continuously exchange through day or night!

Answer 2

um first its carbon dioxide.not dioxit lol and no plants breath in carbon dioxide and breath out oxygen . i put in the simplest form for you to understand.read a biology text book and read about photosynthesis

good luck

xoxo

Answer 3

of course they do. in fact they even give carbon dioxide during the day time. it is just lesser compared to the oxygen output.

    At night there is no photosynthesis-only respiration (burning of food to release carbon dioxide and energy).So carbon dioxide is released

Answer 4

no

Answer 5

"Yes, plants do have a net release of carbon dioxide at night due to cellular

respiration. Both animals and plants undergo cellular respiration constantly.

However, in the light, plants produce much more oxygen via photosynthesis than

than they consume in cellular respiration.

Nonphotosynthetic plant parts, such as potato tubers and apple fruits, would

give off carbon dioxide even in the light. You would need a very poorly

ventilated room and a lot of plants in order to produce a toxic level of carbon

dioxide at night."

Answer 6

You can’t see it. You can’t smell it. You can’t taste or feel it. It enters your body with every breath and you don’t even know it. Carbon dioxide (CO2) has no direct effect on people. Most of us hardly think about it at all. But climate scientists think about it a lot, because it does affect our planet, and it’s on the rise.

CO2 is the second most common greenhouse gas. Water vapor is first. Greenhouse gases act like a blanket around the earth. They trap in the sun’s heat. Without greenhouse gases, we could not survive. Earth would be way too cold.

We don’t have to worry about that, however. CO2 levels in the atmosphere are rising. So is the average global temperature. If CO2 continues to increase, what will it mean for Earth’s climate?

Scientists aren’t exactly sure, but most researchers believe the result will be bad. They think that rising sea levels would flood whole islands and coastal cities. Entire forests, like the Amazon, could be destroyed. A few scientists, however, claim that global warming will actually slow the rise in sea levels. They say that high levels of CO2 will help plants and trees.

These theories are very different, but they do have something in common. Both theories are based on computer models.

“Most future climate predictions are based on mathematical models,” explains Craig Idso, a climatologist at Arizona State University. “You can’t just double the CO2 concentration and see what happens in the real world. We don’t have the technology to do that.”

Computer models are not perfect. But they have been the only way to study the effects of CO2 in the atmosphere.

Until now.

In 1998, Idso discovered that Phoenix lies under a carbon dioxide “dome.” The city has CO2 levels up to 50 percent higher than the global average.

Those high levels are what scientists expect to see around the world in about 50 years. Because Phoenix is ahead of the game, scientists can use the city as a natural “laboratory” to study the effects of these changes.

“People are running around saying we’ll double carbon dioxide sometime in the next century,” says ASU climatologist Robert Balling. “We are saying that we’ve already come close to doing it in Phoenix. You don’t have to wait around.”

This type of CO2 dome hasn’t been seen in any other city, says Balling. Very few cities have even measured CO2 levels. Those that have show only small increases of CO2 over urban areas.

“It looks like everything comes together in Phoenix to produce this carbon dioxide dome,” says Balling. For one thing, the desert does not have many trees or other plants. Trees and green plants normally absorb lots and lots of CO2. Also, people in Phoenix drive a lot. Cars, trucks, and buses spew tons of CO2 from their tailpipes as they go. Finally, Phoenix has very little wind compared to other cities. As a result, the CO2 in Phoenix doesn’t get blown away.

Balling leads a group of scientists who study the relationship between CO2, humans, and the environment. Their first job was to measure CO2 over time and space.

ASU students, led by Idso, drove all over the Phoenix metropolitan area taking air samples and measuring their CO2 content. They also set up several permanent sampling sites.

So far, the results all support Idso’s earlier findings of a huge CO2 dome over Phoenix. They also found that CO2 levels in the heart of Phoenix are higher than those on the outskirts of the city.

Where does all that carbon dioxide come from?

There are many sources. Cars, power plants, and anything else that burns fossil fuels will produce CO2. Cement production also releases the gas. Rotting materials produce CO2, so landfills may be a big contributor. And plant life gives off CO2 at night.

Even people are a source, because we all exhale CO2.

“You’re producing carbon dioxide right now, never forget it,” says Balling. “We have plans sometime in the next year to go out in Sun Devil Stadium. We want to measure the carbon dioxide dome around that stadium when 70,000 great Sun Devil fans are out there screaming and yelling. We think that the level probably goes way up.”

Balling’s team also found that CO2 levels change throughout the day, week, and year. For instance, CO2 levels before dawn are higher than they are in the middle of the afternoon. ASU ecologist Jeff Klopatek suggests a couple of reasons for this difference.

“Carbon dioxide is heavy. At night, it tends to settle in,” he says. “During the day we think the CO2 may just be rising with the warmer air. It could also be a function of vegetation. In most natural ecosystems the CO2’s going to be a lot lower during the day because the plants are taking in the gas for photosynthesis.”

The team also found that CO2 levels are higher on weekdays than on weekends, and higher in mid-winter than in the summer.

Vegetation is one of the trickiest pieces of the CO2 puzzle. Plant life affects the CO2 dome but is affected by it as well. At night, plants give off CO2. But during the day, plants take in CO2 to use for photosynthesis. Photosynthesis is the process plants use to turn sunlight into food.

ASU plant biologist Tad Day is studying the relationship between plants and the CO2 dome. He is looking at CO2 levels over four types of land: turf (grass) outside the CO2 dome, turf inside the dome, desert remnant outside the dome, and desert remnant inside the dome.

There is a wider daily range of CO2 levels over turf than over desert areas. Over turf, nightly spikes are higher than over desert. Daily lows are lower over turf.

“This makes sense because turf vegetation draws in much more CO2 per ground surface area [during the day],” says Day.

Jeff Klopatek digs deeper into the vegetation issue. He studies underground and soil contribution to the CO2 dome.

“In most ecosystems, about 80 to 90 percent of the CO2 in the system is being emitted from the soil,” he says.

Soil CO2 comes from root and fungal activity. It also comes from rotting organic matter. Klopatek is comparing these below-ground sources of CO2 across Phoenix, especially in landfills.

“We expect that they’re significant sources,” he says. “When the organic matter buried in landfills starts to decompose, it also starts to release carbon dioxide.”

Human activities are at the heart of Phoenix’s CO2 dome. It’s easy to see that CO2 levels spike over areas where the most people live. The researchers want to know which human activities produce the most CO2.

Tim Hogan is the director of ASU’s Center for Business Research. He provides information on human-made sources of CO2.

Hogan and his co-workers locate major CO2 sources in Phoenix. They find out just how much electricity the power plants are producing, or how many miles people are driving, to learn how much CO2 is being produced.

He also looks at how these numbers vary over time. As the Phoenix area grows, so will the carbon dioxide dome. Hogan works to predict how the CO2 dome will change, and how it will affect the area.

Collecting data is the first step. That takes lots of time. The real work starts once the data is collected. The researchers have to put it all together and try to figure out what it means.

Patricia Gober and Elizabeth Wentz are geographers. They collect data on traffic patterns, population, land use, and employment. They use numbers from Hogan’s office, along with other local and national sources. They also gather the CO2 data from the other researchers. Then they plug all the information into Geographic Information Systems software and use the computer to look for patterns among the masses of information.

For example, they can make a map showing where the highest CO2 levels occur in the Phoenix area. They can overlay that map onto a map of traffic patterns to see if there is more CO2 over high-traffic areas such as freeways.

Their findings will bring us closer to answering some of the important questions about carbon dioxide.

“There are all these linkages,” says Balling. “We’re working together as a grand team. The goal is to better understand the carbon dioxide all around us.”



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Answer 7

Yes, during the night, photosynthesis gets shut down (since there's no light) and it will give off CO2 like us human.  At night carbon dioxide is taken up from the air and used in the process of making sugars. At night, when photosynthesis does not occur - no sunlight for energy - respiration does occur, which gives off carbon dioxide just as it does in animals. On balance, though, plants take up much more carbon dioxide in photosynthesis than they give off in respiration.

That's why some people say that ppl should take the plants out of the room at night.

Answer 8

Yes, Plants give Cabon dioxide at night. At night, plants take breath like animals. They take Oxygen into and discharge CO2 into air. Therefore, it should not sleep neer plants at night due to deficient in O2 around us.

        During daytime, in the presence of light (Energy) plants produce thier food by using CO2. And discharge oxygen, which use all animals in the universe.

   Here it is clear that Plants has dual method of breathing.