1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
n200080 [17]
3 years ago
11

What happens to the O2 levels during the light and dark?

Chemistry
1 answer:
Lady_Fox [76]3 years ago
5 0

Answer: Hello, This might help. Unidirectional O2 fluxes were measured with 18O2 in a whole plant of wheat cultivated in a controlled environment. At 2 or 21% O2, O2 uptake was maximum at 60 microliters per liter CO2. At lower CO2 concentrations, it was strongly inhibited, as was photosynthetic O2 evolution. At 2% O2, there remained a substantial O2 uptake, even at high CO2 level; the O2 evolution was inhibited at CO2 concentrations under 330 microliters per liter. The O2 uptake increased linearly with light intensity, starting from the level of dark respiration. No saturation was observed at high light intensities. No significant change in the gas-exchange patterns occurred during a long period of the plant life. An adaptation to low light intensities was observed after 3 hours illumination. These results are interpreted in relation to the functioning of the photosynthetic apparatus and point to a regulation by the electron acceptors and a specific action of CO2. The behavior of the O2 uptake and the study of the CO2 compensation point seem to indicate the persistence of mitochondrial respiration during photosynthesis.

Explanation:

You might be interested in
What are some observable indications that a chemical reaction has occurred?
Leya [2.2K]
Bubbles, release of gas, change in color, release of a smell, change in temperature, formation of a precipitate, 
8 0
3 years ago
How many lone pairs does CO2 have? Does it have Single bonds or Double bonds? Does it obey the octet rule?
Aleks04 [339]
The molecule CO2 have 2 lone pairs located in the oxygen atoms. It has two double bonds also connecting carbon atom to the two oxygen atoms. It does obey the octet rule so the atoms need 8 electrons in each of them that is why electrons are shared.
3 0
3 years ago
An earthquake's____<br> located directly above its_____
Kipish [7]

Answer:

An earthquake's <u>what happens when two blocks of the earth suddenly slip past one another. </u>

located directly above its <u>The epic Center </u>

Explanation:

<h2>Hope this helps you !! </h2>
6 0
2 years ago
The temperature of a gas rose from 250K to 350K. At 350K, the volume of the gas was 3.0L. If the pressure did not change, what w
LenaWriter [7]
Hey there,

So. . I believe is how you do it. I did 350 x 3.0 and it got me 1,050.
We always multiply it by when it come to the initial volume of the gas.

Hope this helps.

~Jurgen<span />
7 0
3 years ago
Read 2 more answers
Balance NH4C2H3O2 + PbO2 and tell what type of reaction it is. Please help!! Time is limited!
Sati [7]

Answer:

.................

Explanation:

7 0
3 years ago
Other questions:
  • Octane (C8H18)reacts oxygen gas (O2) to form carbon dioxide and water
    11·1 answer
  • Both of the carbon-oxygen double bonds in co2 are polar. in which direction should the polarity arrows point?
    9·1 answer
  • What defines rate-determining step in a chemical reaction
    7·1 answer
  • A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-L container of cold water, what woul
    10·1 answer
  • onsider the following reaction at equilibrium: CO(g) + Cl2(g)=======COCl2(g) Predict whether the reaction will shift left,shift
    6·1 answer
  • The arsenic in a 1.223 g sample of a pesticide was converted to H3AsO4 by suitable treatment. The acid was then neutralized, and
    9·1 answer
  • Please help me with this question it’s due in five minutes I’ll give brainliest
    11·1 answer
  • C3H8(g) + 5O2(g) ⟶ 3CO2(g) + 4H2O(g) H = -2220 kJ If 865.9 g of H2O is produced during this combustion, how much heat is generat
    10·1 answer
  • Calcule la molaridad de una solución acuosa de ácido sulfúrico (H₂SO₄) que se preparó al mezclar, en un recipiente aforado, 4 mo
    15·1 answer
  • Help asap! if u answer correct Ill give brainliest!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!