do plants breath when they do photosynthesis?

Question

are plant just breathing in the night or they r breathing in the day time too?if they do the same time could you explain how do it works

Answer 1

Breathing is usually associated with lungs. of course lants do not have lungs. The gas exchange process is called respiration.

Anyways, from what i know of, photosynthesis is totally a different issue from respiration. plants respire and photosynthesise at the same time.

Respiration is defined as taking in oxygen and react it with glucose to release energy. Photosynthesis is taking in carbon dioxide and produce glucose. (oxygen is a byproduct) Respiration takes place in every single cell in a plant while pphotosynthesis only takes place in the mesophyll layer, mostly the palisade layer (the chloroplasts)

plants DO respire at daytime, it's just that in the daytime the rate of photosynthesis is very high thus the amount of oxygen produced is much higher than the carbon dioxide produced. so a plant seemed to produce only oxygen in daytime.

at night, when there is no light available for photosynthesis, the plant will only produce carbondioxide from respiration

i don't think that photosynthesis has anything to do with breathing. it's for making food only.

phew, finally the stuff we learn at school is actually helping someone

Answer 2

Let's be clear. Plants do not breath. Breathing is the motion of lungs taking in air. However, that is not the same thing as respiration either , which is gas exchange.

Plants take in gases (carbon dioxide), and with water (and using sunlight as a catalyst) convert it to sugar (that's their food, or energy source) and oxygen, which they release through stomata (holes on the undersides of leaves).

The photosythesis process takes place 24 hours a day (as long as the plant has its leaves), even when the sun goes down.

Answer 3

tu put it shortly, while only green parts can photosynthesize at daytime, the whole plant breaths round the clock, just we call it respiration rather than breathing. e.g. roots, flower petals, etc. can only respire. it is a procecss counter to photosynthesis. if a plant does more photosynthesis than respiration over some time- it grows in size over that time

what BOAZ says is perfect NONSENSE. Boaz, i suppose you remove any other human from your bedroom as well, because a human would consume about 100-1000 times more oxygen than a potted plant

Answer 4

Yes they do. They breathe out oxygen during the daytime and release carbon dioxide during the nights. That is why it is not a good idea to have too many plants in small sleeping quarters.

Boaz

Answer 5

As far as breathing is concerned, Papyrus is correct. Photosynthesis is the process plants use that turns light into food, which is not related to the breathing issue.

Answer 6

The plants take in carbon dioxide during photosynthesis and leave out oxygen.

Answer 7

It depends how you define the word "breathe" In any case, carbon dioxide goes in and oxygen goes out. Gases move, so in that sense they do breathe.

v. breathed, breath·ing, breathes
v. intr.
To inhale and exhale air, especially when naturally and freely.
To be alive; live: A nicer person has never breathed.
To pause to rest or regain breath: Give me a moment to breathe.
To move or blow gently, as air.
To allow air to pass through: a natural fabric that breathes.
To be exhaled or emanated, as a fragrance.
To be manifested or suggested, as an idea or feeling: A sense of calm breathed from the landscape.
To reach fullness of flavor and aroma through exposure to air. Used chiefly of wine.
To require air in the combustion process. Used of an internal-combustion engine.

v. tr.
To inhale and exhale (air, for example) during respiration.
To inhale (an aroma, for example): breathe the lush scent of lilacs.
To impart as if by breathing; instill: an artist who knows how to breathe life into a portrait.
To exhale (something); emit.
To utter, especially quietly: Don't breathe a word of this.
To make apparent or manifest; suggest: Their manner breathed self-satisfaction.
To allow (a person or animal) to rest or regain breath.
Linguistics. To utter with a voiceless exhalation of air.
To draw in (air) for the combustion process. Used of an internal-combustion engine.

Answer 8

Plants do not have lungs and therefore do not breath in the sense that we know it. They do however absorb carbon dioxide and release oxygen, whereas humans breath in oxygen and breath out carbon dioxide. They give us what we need and we give them what they need.

Answer 9

What do you mean by "BREATHE?"

There is "transpiration" in plants (water vapor release thru stoma), which is different from cell respiration (catabolic break down of glucose into CO2 and H2O and production of ATP, which is different from photosynthesis, which is the anabolic synthesis of carbs from CO2 and H2O in the presence of the sun and chlorophyll, releasing oxygen and water. (Thus plants do not need us, but we need them.)

Answer 10

Plants take in carbon dioxide and releases oxygen. You may call that "breathe".