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i have a few questions on some bullshit assignment for environmental science and was wondering if anyone knew the answers off hand or could direct me to a site which will explain. its fucking bullshit because the instuctors never went over any of this shit and it isnt in the text, anyways here are a few i dunno..

 

1. Write the equations for photosynthesis and respiration.

 

2. Why do cells (whether animal, plant, protozoan, or microbial) need to respire? What energy source do they use?

 

3. Determine if photosynthesis and respiration are endothermic or exothermic chemical reactions and support your answer.

 

4. Based on your answer to question three: Would you expect that elodea plants would gain weight, lose weight, or not change in weight if you placed them in the dark for a few days? What does this tell you about why plant seeds typically have significant amounts of starch stored inside?

 

5. Provide and explain two key reasons to support the statement that "photosynthesis is essential to the existance of life on earth?"

 

 

any help whatsoever will be greatly appreciated..

 

if you plan on flaming just save it..i dont give a fuck i just want a little help

google

LOL UR NAME SAYS IT ALL DO U REALLY THINK UR GONNA GET ANSWERS FROM ALL THAT SHIT ON HERE AHHAHAHAHAHAHHAHA AND IF SOMEONE DOES GIVE ONE ARE U GONNA USE IT WITHOUT CHECKING RESOURCE AHAHHAHAHAHA

LOLOLOLOL my outline from envi-sci at hs.

Equation for photosynthesis

 

6CO2 + 6H2O + Energy ® C6H12O6 + 6O2

 

 

Equation for Cellular Respiration

 

C6H12O6 + 6O2 ® 6CO2 + 6H2O + Energy

 

Anaerobic respiration

Different organisms have several alternative ways of getting energy from food, without using oxygen, but all are less efficient than aerobic respiration, and do not break food down fully into the simplest substances. For example, when working hard, some animal cells do not receive enough oxygen from the blood, so they convert glucose into lactic acid without producing carbon dioxide or water.

C6H12O6 ----> 2 C3H6O3 ( + about 210 kJ per mole of glucose)

glucose ----> lactic acid + much less energy released

After exertion, the body takes some time to convert this lactic acid into useful substances, and repay the so-called oxygen debt due to lack of oxygen in the blood in the first place.

 

Aerobic respiration

This is the normal process by which "food substances" are broken down and oxidised to provide energy, in Man and most living organisms. Do not confuse this with digestion. However, most food substances are converted to glucose before being respired.

 

The word aerobic means "requiring air", but the only important component of air (as far as respiration is concerned) is the gas oxygen , which makes up about one fifth ( 21%) of the total. The overall reaction of aerobic respiration process may be expressed as a chemical equation as follows.

Complete the word equation by adding the names below this.

 

 

C6H12O6 + 6 O2 ----> 6 CO2 + 6 H2O (+ about 2800 kJ per mole of glucose)

glucose + oxygen ----> carbon dioxide + water + energy released

  • Author
LOLOLOLOL my outline from envi-sci at hs.

Equation for photosynthesis

 

6CO2 + 6H2O + Energy ® C6H12O6 + 6O2

 

 

Equation for Cellular Respiration

 

C6H12O6 + 6O2 ® 6CO2 + 6H2O + Energy

 

Anaerobic respiration

Different organisms have several alternative ways of getting energy from food, without using oxygen, but all are less efficient than aerobic respiration, and do not break food down fully into the simplest substances. For example, when working hard, some animal cells do not receive enough oxygen from the blood, so they convert glucose into lactic acid without producing carbon dioxide or water.

C6H12O6 ----> 2 C3H6O3 ( + about 210 kJ per mole of glucose)

glucose ----> lactic acid + much less energy released

After exertion, the body takes some time to convert this lactic acid into useful substances, and repay the so-called oxygen debt due to lack of oxygen in the blood in the first place.

 

Aerobic respiration

This is the normal process by which "food substances" are broken down and oxidised to provide energy, in Man and most living organisms. Do not confuse this with digestion. However, most food substances are converted to glucose before being respired.

 

The word aerobic means "requiring air", but the only important component of air (as far as respiration is concerned) is the gas oxygen , which makes up about one fifth ( 21%) of the total. The overall reaction of aerobic respiration process may be expressed as a chemical equation as follows.

Complete the word equation by adding the names below this.

 

 

C6H12O6 + 6 O2 ----> 6 CO2 + 6 H2O (+ about 2800 kJ per mole of glucose)

glucose + oxygen ----> carbon dioxide + water + energy released

 

haha wow if this is correct ty

1.) Photosynethesis - 6CO2 + 6H2O + Energy -> C6H12O6 + 6O2

Resperation - C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy

 

2.) Cells have to respire to create ATP. (as well as c02 and h20) As you should know from class without ATP, they can't really do anything.

 

3.) Photosynthesis is endothermic

 

4.) Not positive off top of my head and dont want to look things up, so i dont want to answer and send you on the wrong path.

 

5.) Should be easy enough without even doing an research. Without photosynthesis plants could not live, without plants nothing could live.

 

 

 

I can't believe I still remeber this crap from my Biotechnology class...

  • Author
1.) Photosynethesis - 6CO2 + 6H2O + Energy -> C6H12O6 + 6O2

Resperation - C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy

 

2.) Cells have to respire to create ATP. (as well as c02 and h20) As you should know from class without ATP, they can't really do anything.

 

3.) Photosynthesis is endothermic

 

4.) Not positive off top of my head and dont want to look things up, so i dont want to answer and send you on the wrong path.

 

5.) Should be easy enough without even doing an research. Without photosynthesis plants could not live, without plants nothing could live.

 

 

 

I can't believe I still remeber this crap from my Biotechnology class...

 

thanks man:wiggle:

thanks man:wiggle:

 

No problem, I know how hard it can be trying to get a serious answer here. So I thought maybe if gave one, it might rub off on some people. (but i doubt it...) lol

CJ;442454']LOL UR NAME SAYS IT ALL DO U REALLY THINK UR GONNA GET ANSWERS FROM ALL THAT SHIT ON HERE AHHAHAHAHAHAHHAHA AND IF SOMEONE DOES GIVE ONE ARE U GONNA USE IT WITHOUT CHECKING RESOURCE AHAHHAHAHAHA

You're a troll.

 

LOLOLOLOL OWNED.

CJ;442454']LOL UR NAME SAYS IT ALL DO U REALLY THINK UR GONNA GET ANSWERS FROM ALL THAT SHIT ON HERE AHHAHAHAHAHAHHAHA AND IF SOMEONE DOES GIVE ONE ARE U GONNA USE IT WITHOUT CHECKING RESOURCE AHAHHAHAHAHA

 

hes the fucking op's calm down

You're a troll.

 

LOLOLOLOL OWNED.

 

NO U

 

HE'S THE OPS K

I learned that stuff in 9th grade biology, don't work too hard at TEH COLLAGE eh?

 

lmao i was just going to post this.

CJ;442454']LOL UR NAME SAYS IT ALL DO U REALLY THINK UR GONNA GET ANSWERS FROM ALL THAT SHIT ON HERE AHHAHAHAHAHAHHAHA AND IF SOMEONE DOES GIVE ONE ARE U GONNA USE IT WITHOUT CHECKING RESOURCE AHAHHAHAHAHA

 

HEY EVERYONE, I'M CJ!!! LOOK AT ME I POST IN A HUGE FONT TO GET EVERYONE'S ATTENTION AND I DO THIS LIKE 15 TIMES A DAY BECAUSE NO ONE EVER LISTENS TO ME. I'M BEGGING TO BE QUOTED SO PLEASE DO SO!!! MAKES ME FEEL SO IMPORTANT

 

http://www.ganjataz.com/general-bollocks/images/by-GT/forum-shitz/attentionwhore.jpg

HEY EVERYONE, I'M CJ!!! LOOK AT ME I POST IN A HUGE FONT TO GET EVERYONE'S ATTENTION AND I DO THIS LIKE 15 TIMES A DAY BECAUSE NO ONE EVER LISTENS TO ME. I'M BEGGING TO BE QUOTED SO PLEASE DO SO!!! MAKES ME FEEL SO IMPORTANT

 

QFT

HEY EVERYONE, I'M CJ!!! LOOK AT ME I POST IN A HUGE FONT TO GET EVERYONE'S ATTENTION AND I DO THIS LIKE 15 TIMES A DAY BECAUSE NO ONE EVER LISTENS TO ME. I'M BEGGING TO BE QUOTED SO PLEASE DO SO!!! MAKES ME FEEL SO IMPORTANT

 

http://www.ganjataz.com/general-bollocks/images/by-GT/forum-shitz/attentionwhore.jpg

 

So fucking true

Seriously, CJ when will you shut the fuck up? Jesus Christ.

 

Also if you need help with college shit, you should probably be talking to your professor first before anyone else.

HEY EVERYONE, I'M CJ!!! LOOK AT ME I POST IN A HUGE FONT TO GET EVERYONE'S ATTENTION AND I DO THIS LIKE 15 TIMES A DAY BECAUSE NO ONE EVER LISTENS TO ME. I'M BEGGING TO BE QUOTED SO PLEASE DO SO!!! MAKES ME FEEL SO IMPORTANT

 

http://www.ganjataz.com/general-bollocks/images/by-GT/forum-shitz/attentionwhore.jpg

 

have to agree

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