oxygen by plants.?

Question

from where do oxygen liberated by plants comes ?CO2 or H2O?

Answer 1

OXYGEN COMES FROM THE BREAKING DOWN OF THE WATER MOLECULE IN THE LIGHT REACTION TO LIBERATE THE HYDROGEN ION. THE OXYGEN LEAVES THE PLANT AND THE HYDROGEN IS USED TO PRODUCE ATP WHICH IS NECESSARY FOR THE PRODUCTION OF SUGAR IN THE DARK REACTIONS.

Answer 2

Mr. Biology is correct.
Oxygen come from the splitting of Water in photosynthesis.
This occurs in the light reactions which happen in the thylakoid membrance of the chloroplasts.

The Hydrogens (H+) go to form a proton gradient, the electrons split from the Hydrogen bounce around and get excited going to higher energy levels and the Oxygen is released as O2.

COntrary to popular ideas though, plants ALSO USE oxygen.

They use oxygen in the process of respiration which occurs in the mitochondria. Respiration is using oxygen to change food into energy (with water and carbon dioxide as waste products).

Respiration is almost the exact opposite of photosynthesis.

Answer 3

Oxygen is a byproduct of photosynthesis. We exhale CO2 and the plant uses it in a process called photosynthesis adn in turn plants produce Oxygen

Answer 4

The plant's metabolic process (the conversion of food into energy) uses CO2. One of the byproducts of that process is O2 derived from the CO2.

Answer 5

from H2O because they take water and liberate oxygen

Answer 6

the break down of h20 and carbons. like co2 is the waste product of our breathing, o2 is the waste product of photosynthesis by pants.

Answer 7

we give oxygen to the plants. And the plants give us carbon di-oxide



but nise questain a small child can learn it very easy

Answer 8

Both i think.

Answer 9

im pretty sure both