Question

Could someone please check my answer?

Answer 1

Okay, so the question is "Is it correct to say that photosynthesis is the reverse reaction of cellular respiration? Explain."

Answer 2

MissSmartiez here to help

Answer 3

Here are the equations I am going by:

Cellular Respiration: \[C _{6}H _{12}O _{6} + 6O _{2} \rightarrow 6CO _{2} + 6H _{2}O + 36 ATP\]

Photosynthesis: \[6CO _{2} + 6H _{2}O \rightarrow C _{6}H _{12}O _{6} + 6O _{2}\]

Answer 4

Did you explain how it is reversed?

Answer 5

Because I believe you'd get half credit if you did say

yes or no, explain why

Answer 6

It would be more appropriate to leave ATP out of t equation.

Answer 7

My answer is no because photosynthesis does not include ATP. Also, the equation doesn't show it, but photosynthesis requires sunlight and cell respiration does not. I don't know if that proves anything though...

Answer 8

What do you mean?

Answer 9

This would be more appropriate. Also, you can change the ADP+P for light and completely drop the ATP part for photosynthesis.

Answer 10

Notice you that you have a unbalanced equation when you include ATP. In fact, you are missing a few elements in the reactants.

Answer 11

So you did, I would say otherwise, but nice answer,

"Yes. Although the steps involved are quite different, cellular respiration is essentially the reverse reaction of photosynthesis. The formula for photosynthesis is

6 H2O + 6 CO2 + light energy ----------> C6 H12 O6 + 6 O2

and the formula for cellular respiration is

C6 H12 O6 + 6 02 ----------> 6 H2O+ 6 CO2+ energy From the formulas here, you can see that the products of photosynthesis fuel cellular respiration and the products of cellular respiration fuel photosynthesis. Photosynthesis uses energy from sunlight to build glucose and release oxygen from carbon dioxide and water. Cellular respiration combines oxygen with glucose in the mitochondria to produce ATP; water (along with a little heat) and carbon dioxide are produced as well.

Photosynthesis and cellular respiration are said to be reverse chemical processes because the reactants of photosynthesis are the products of cell respiration and the reactants of cell respiration are the products of photosynthesis."

http://www.answers.com/Q/&ad=1

http://www.globalchange.umich.edu/globalchange1/current/lectures/kling/energyflow/PSN_primer.html

http://www.answers.com/Q/Is_cellular_respiration_a_reverse_process_of_photosynthesis

Answer 12

@MissSmartiez Giving direct answers is against the terms of service of this site.

Answer 13

Is it even direct?

I wanted to tell her how it was yes but now I see. No need to summon me. @mrdoldum.

Thanks for that though..

Answer 14

mrdoldum, could you explain your point about how the ATP? I'm a little confused about that.

Answer 15

Do you understand?

If you are borrowing examples from what I cited, please take a look at the listed sources and paraphraise. However, if it is an closed book quiz, put it in your own words, if you still need help, I am sure @mrdoldum can explain.

Answer 16

paraphrase#

First do you recall what ATP is? Also how it differs in each process?

Answer 17

I know that ATP is adenosine triphosphate, and that in cell respiration, it is an energy source, and in photosynthesis.... Doesn't it power the Calvin Cycle?

Answer 18

I believe you are correct about cell cell respiration, but I will check on photosynthesis.

Answer 19

Take a look at the 2nd paragraph

http://www.globalchange.umich.edu/globalchange1/current/lectures/kling/energyflow/PSN_primer.html

tells you about it.

Answer 20

Okay, I think I have it. Photosynthesis is the reverse reaction of cellular respiration because the products of one are the reactants of the other. Right?

Answer 21

I believe so, :), check it because I can be wrong.

However, I really believe that is the case, Kris :D

Answer 22

Thank you!!

Answer 23

@Kris2015 Please close the question so that other people can get their questions answered.

Answer 24

@kris2015 Yes, the overall, generic formula that you get in textbooks is a reversible reaction, cell respiration moves the chemicals in the opposite directions. Now if you look into what is going on in the whole, complete pathways there are major differences.