What is the energy source for cellular respiration?

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Discussion Overview

The discussion centers around the energy sources involved in cellular respiration and photosynthesis, exploring the processes and comparisons between them. Participants express uncertainty about the details of cellular respiration while discussing the role of ATP and glucose in these biological processes.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested
  • Homework-related

Main Points Raised

  • Some participants note that photosynthesis involves trapping sunlight to create glucose, which serves as an energy source for plants.
  • Others argue that ATP is the universal energy source for all organisms and is used in cellular respiration to break down glucose, resulting in a net gain of energy.
  • A participant highlights that photosynthesis is not exclusive to plants, mentioning photosynthetic bacteria and the evolutionary theory of chloroplasts and mitochondria being assimilated bacteria.
  • Another participant emphasizes that respiration is essentially the reverse of photosynthesis, converting glucose back into carbon dioxide and water while liberating stored energy.
  • There is a correction regarding the terminology used in describing photosynthesis, with a focus on factual reporting rather than descriptive language.

Areas of Agreement / Disagreement

Participants express various viewpoints on the processes of photosynthesis and respiration, with some agreeing on the roles of ATP and glucose while others provide differing perspectives on the details and implications of these processes. The discussion remains unresolved regarding the specifics of cellular respiration.

Contextual Notes

Some participants mention the need for clarity in definitions and processes, indicating potential limitations in understanding the relationship between photosynthesis and respiration. There is also a reference to the complexity of evolutionary theories regarding the origins of chloroplasts and mitochondria.

Who May Find This Useful

This discussion may be useful for students studying biology, particularly those interested in the processes of photosynthesis and cellular respiration, as well as their evolutionary implications.

RainGurl
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I am not sure about respiration but I know photosynthesis the energy is through light creating photosynthesis. By trapping the sunlight. Creating energy for plants since they cannot fed themselves. That energy creates glucose.

Am I right? If not please correct me.

If someone can help me with cellular respiration and it's energy source is produced/kept/used.


Thanks, RG
 
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Light is the energy that makes things happen in photosynthesis. ATP is the universal energy source for all organisms. In cellular respiration (both anaerobic and aerobic), ATP is the source of energy that is used to breakdown glucose. Although ATP is used in these processes, there is a net gain with each molecule of glucose that is broken down.

Does that help at all?
 
Plants are the only organisms that can turn sunlight into the little energy storage packages that we call sugar. When the sun is shining plants create photosynthesis, furiousily turning sunlight into stored energy. Everyday they turn the sun’s energy into millions tons of sugar.


I guess that answer doesn't really apply to the question right?
 
RainGurl said:
Plants are the only organisms that can turn sunlight into the little energy storage packages that we call sugar. When the sun is shining plants create photosynthesis, furiousily turning sunlight into stored energy. Everyday they turn the sun’s energy into millions tons of sugar.


I guess that answer doesn't really apply to the question right?

Plants don't "create photosynthesis". They use the process of photosynthesis to create glucose with the help of sunlight.

Is this for a biology or english class? If it's the former, you could drop the adjectives and report the facts. I'm just nitpicking on that point and I can be a little anal.
 
GoneRogue said:
Plants don't "create photosynthesis". They use the process of photosynthesis to create glucose with the help of sunlight.

Is this for a biology or english class? If it's the former, you could drop the adjectives and report the facts. I'm just nitpicking on that point and I can be a little anal.

Actually its for biology 12. I am doing a comparison table between respiration and photosynthesis. They only give you the option of using web, text and whatever resources you can find.

Right now I am comparing energy source of photosynthesis and respiration.
 
I have a rather large textbook (or two) which I am sure has tons of information on all of the differences between Photosynthesis and Respiration, but I am sure just as much info can be found online.

First point: Photosynthesis is not only found in plants, it is found in photsynthetic bacteria too, and it is undoubtedly from an assimilation of these photsynthetic bacteria into the plant eukaryotic cells through which plants gained the power of photosynthesis.

In fact, this might be interesting in your report, I will check up on this but I am confident that the currently accepted theory is that Chloroplasts (the organelle in cells where photosynthesis occurs) and Mitochondrion (the organelle in cells where respiration occurs) are both thought to be assimialted bacteria. That is the cell has formed (millions of years ago) a symbiotic relationship with the photosynthetic bacterial cell whereby the photosynthetic cell provided the larger cell with energy, while the larger cell provided the photosynthetic cell (the chloroplast) with a means for reliable replication.

of course there are many theories explain how this could have happened but they are largely speculation.

http://www.phschool.com/science/biology_place/biocoach/cellresp/intro.html looks like it might have some good information on the topic. (I didn't look too closely)

try looking through that tutorial, and then see if you have more questions :)
 
Mitochondria have their own DNA...

Simply put:
1. Photosynthesis (putting together with light) stores sunlight energy
(fixes) in glucose. Glucose is made from water and carbon dioxide.

2. Respiration(aerobic and anaerobic) converts glucose back to carbon dioxide and water. Respiration liberates the stored energy. That freed energy is carried by ATP molecules around the cell to do work in the cell.

At a very simplistic level, Respiration is the reverse of Photosynthesis.
 

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