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I have a Test Tomarrow!!! HELP!

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I have a Test Tomarrow!!! HELP!

Postby Redspart1 » Wed Feb 24, 2010 8:06 pm

My teacher is going to give us a 65 question test, but the thing is he told us that 20% of your grade. The question was

"What is the similarities between photosynthesis and cellular respiration? Use a picture to show as a example"

I do not understand the similarties between both. I need help!!!!!



Thank you
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Postby JackBean » Wed Feb 24, 2010 8:24 pm

http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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Postby Redspart1 » Wed Feb 24, 2010 8:29 pm

Thanks for the help
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Re: I have a Test Tomarrow!!! HELP!

Postby USFBioBull » Wed Feb 24, 2010 10:09 pm

If you can take the major organelles in each pathway and correlate them, that would be a huge part of your answer. I hope this site helps.
http://www.worsleyschool.net/science/fi ... /page.html
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Postby AndrewPhD » Thu Feb 25, 2010 2:34 am

compare what it required at each step and what is produced at each step in each process

add why one is needed versus the other..dont forget about fermentation!!

then add a connection to evolution by commenting on how evolution has caused the differences in mitochondria and chlorophlast
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Postby JackBean » Thu Feb 25, 2010 7:24 am

Andrew: how is fermentation related to photosynthesis?
http://www.biolib.cz/en/main/

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Re: I have a Test Tomarrow!!! HELP!

Postby jimkerosh » Sat Mar 20, 2010 6:29 am

Similarities
1) Both involve electron transport chains.
2) Chemiomosis allows ATP synthase to produce ATP.
3) Both take place at some point within an organelle (mit. = CR, chloroplast= photo.)
4) Both utilize ATP for energy at some points.
5) Both provide power for cellular activities.

Differences
1)Cellular respiration depends on oxygen as a substrate.
2)Photosythesis utilizes 2 electron transport chains (not just 1).
3)In Photo. , energy is provided by photons and not catabolic processes as in cell. resp.
4)Photosynthesis involves the production of NADPH (CR involves NADH and FADH2)
5)Photosynthesis involves CO2 and H20 as substrates (splitting h20 provides the electrons for the process).
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Re: I have a Test Tomarrow!!! HELP!

Postby JackBean » Sat Mar 20, 2010 7:58 am

jimkerosh wrote:3) Both take place at some point within an organelle (mit. = CR, chloroplast= photo.)
4) Both utilize ATP for energy at some points.

I guess, that all pathways take place in concrete organelle (or cytoplasm) and ATP is basically always used as energy storage


jimkerosh wrote:2)Photosythesis utilizes 2 electron transport chains (not just 1).

Really?
http://www.biolib.cz/en/main/

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Postby Thokozani » Thu Mar 25, 2010 7:12 am

1.They both occur in organelles that are believed to have evolved via endosymbiosis.
2.They both produce energy for the cell.
3. They both utilize an electron transport chain.

Photosynthesis:
1. Occurs in Plants
2. Occurs in the chloroplasts of plant cells
3. Involves the Calvin cycle
4. Uses sunlight

Cellular Respiration:
1. Occurs in mitochondira of cells
2. Involves the Kreb Cycle
3. Uses oxygen as final electron acceptor
4. Produces a net yeild of 36 ATP
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