Do plants use or consume Oxygen?If yes, When? How?

Answer 1

Yes, all green or vascular plants consume oxygen all the time. Green plants release oxygen through photosyntesis but they still consume oxygen at the same time. The primary way plants use oxygen is through their root cells. In order for a plant to take up water and nutrients from the soil, it must continually grow new root hairs. The cells that make up these hairs are living cells that do not carry out photosynthesis. They are similar to the cells of animals in that they require oxygen and give off carbon dioxide as they burn carbohydrates to obtain the energy they need to function. This is why you can "drown" a house plant by watering it too much. If the soil gets too saturated with water, the plants root cells can't get enough oxygen from the air. There are vascular plants such as cypress trees and cattails that are adapted to living in saturated soil. These plants have root hairs that grow out of the stems above the soil and/or water surface so that they can take in oxygen. When a plant is green, it is giving off more oxygen through photosynthesis in it's leaf and sometimes stem cells than it is consuming through it's root cells so that is why you hear people say that plants are "opposite" of animals in that they take in carbon dioxide and give off oxygen. When a plant is dormant and it's leaves have fallen off in the case of perennial decidious plants (as opposed to annuals such as dandilions or evergreen plants such as pine trees), then plants are still using oxygen and giving off carbon dioxide through their roots as the roots must stay active to keep the root crown from which the new stems and leaves will emerge the next growing season alive.

Answer 2

Plants Produce Oxygen

Answer 3

Do Plants Use Oxygen

Answer 4

plants do consume oxygen during respiration when they burn glucose to gain energy for carrying out their metabolic processes .
Duringday time in the presence of light the proceeses of photosynthesis and respiration are taking place simultaneously ,and more oxygen is bign produced in photosynthesis htan is being consumed i nrespiration. So surplus oxygen is giving out into the atmosphere which gives a false impression that plants donot need oxygen.
During night in the absence of photosynthesis plants absorb oxygen from atmospere and release carbon dioxide like all other living organisms .

Answer 5

All plants and animals on earth engage in a process called respiration. Respiration combines oxygen and digested food to release energy.

One of the byproducts of respiration is carbon dioxide.

Respiration doesn’t depend on light; it goes on 24 hours a day, so that plants and animals have enough energy to perform the basic functions that keep them alive.

However, during the day, the amount of oxygen plants release as part of photosynthesis makes the amount of oxygen they consume for respiration seem negligible.

At night, when photosynthesis can’t take place, plants continue to consume oxygen but they don’t release any back into the room.

Answer 6

This Site Might Help You.

RE:
Do plants use or consume Oxygen?If yes, When? How?

Answer 7

use and consume are closely related terms!
So, if you have learnt Photosynthesis; plants USE/CONSUME carbon dioxide from the atmosphere(we 'exhale' or breathe out carbon dioxide) and GIVE OUT Oxygen(we 'inhale' or take in oxygen).THIS IS THE BASIC FUNDAMENTAL.
But as you have asked..
They DO consume Oxygen. especially at night. At night plants instead of carbon dioxide take up oxygen.

When?
yes! at night.

How?
Interesting.
At night, there is no light available to the plant. Thus, photosynthesis stops.
(photo=light and synthesis=to make, to create.)
Just like plants take up carbon dioxide through their body surface, in the very same manner they take up oxygen.

You must have heard them say.. 'you shoudn't sleep at night
with plants in our bedrooms because they take oxygen at night and emit carbon dioxide.' It's true!

Hope that answered your query!:)

Answer 8

plants do BOTH aerobic respiration AND photosynthesis and they can do BOTh during both the day or night, but the "light reaction" of photosynthesis, part 1, occurs in the light whether it be sun or a growlight at night!

Photosynthesis is plants' synthesis reaction which occurs in the thyllakoid membranes of chloroplasts that takes small inorganic molecules of carbon dioxide and water in the presense of the sun-minerals-chlorophyll to make glucose, water and oxygen gas.

The oxygen from photosyntheis can then be used by plant cells for aerobic cell respiration, essentially the opposite equation from photosynthesis, a form of catabolic decomposition. The glucose (a large organic molecule) will be broken down in mitochondria in the presence of oxygen to make small inorganic molecules of carbon dioxide, water and lots of ATP energy for metabolic needs of cells.

Thus plants don't need us animals much, but we (animals including humans) sure need them! In fact, plants often do better without destructive human animals around making mayhem on the planet.

Answer 9

OF COURSE THEY DO . Every living plant cell does it. for those that say no, photosynthesis is not the only process that plants are capable of. the process opposite to photosynthesis (called respiration) goes on all the time in all living cells of a plant, while photosynthesis takes place only in green parts only at light. so roots never photosynthesize, but respire all the time. Leaves respire all the time and photosynthetize during daytime. (if the plant is growing, the photosynthesis should prevain against respiration of all parts of plant) dead cells of wood do neither. is it clear??

photosynthesis uses up carbon dioxide and releases oxygen, respiration is vice versa. and no matter whether it is respiration of a plant or a human like u or me, it is the same

the myth about not sleeping with plants areound makes me laugh each time i hear it. such crap! the amount of oxygen used by a massive houseplant is a tiny littlel fraction of what boyfriend or girlfriend would use and we still share our bedrooms with them!

Answer 10

Hi,
Plants produce Oxygen. This is a process known as Photosynthesis. The Oxygen is produced in the 'light-dependant' reaction, where a process called 'Photolysis' takes place, where energy is taken from Photons of light in the presence of Cholrophyll, which using this energy, is able to release an electron. This electron causes an instability in the polar structure of water, and causes the molecule to split up into Hydrogen Ions (Protons) and Oxygen Molecules. The Protons stay in the leave in order to synthesis NADPH and ATP, but the oxygen is either used elsewhere in the plant for Respiration, or is Released....Hence it goes into the atmosphere for us to breathe!

Tom
Biologist

Answer 11

plants split the water molecule to use the hydrogen (=proton), during the process of photosynthesis. Photosynthesis is a pcrocess whereby plants use carbondioxide and water and the sun's energy to synthesise sugars. The hydrogen of the water molecule is used and the oxygen is discarded.
Plants also break down stored sugars to produce energy by the chemical process of oxidation where oxygen is converted to carbon dioxide. animals respire the same way.So they produce both oxygen and also carbon dioxide.
Luckily for us animals, plants produce food, and also make far more oxygen then they produce carbon dioxide..
Dan the Answers-Man
extra points always appreciated and never rejected.