Login

Join for Free!
113973 members


Effect of heat on respiration in organisms

Discussion of all aspects of cellular structure, physiology and communication.

Moderator: BioTeam

Effect of heat on respiration in organisms

Postby Stef74 » Sat Oct 01, 2005 6:04 pm

Can you please explain the effect of heat on respiration in organisms. I am trying to write a report for an experiment I havent done involving a respirometer and maggots, and I am struggling to find relevant information
Stef74
Garter
Garter
 
Posts: 4
Joined: Sat Oct 01, 2005 6:00 pm

Postby MrMistery » Sat Oct 01, 2005 7:23 pm

Cellular respiration is very much affected in all organisms. It is easiest to measure in plants. basically what you need to know is that there is a minimum, an optimal, and a maximum. At most plants the minimum is 0 celsius, optimal 30-35 celsius. Pine trees can breathe at -25 celsius. Some thermal algae at +65 celsius. The optimal temperature of 35 celsius goes for most organisms.. With a lot of exceptions..
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)

Postby Stef74 » Sun Oct 02, 2005 10:29 am

am I correct to think respiration increases as temp does up until the maximum temperature.
Stef74
Garter
Garter
 
Posts: 4
Joined: Sat Oct 01, 2005 6:00 pm


Postby Fried Zygote Sandwich » Mon Oct 03, 2005 2:10 am

http://users.rcn.com/jkimball.ma.ultran ... H_temp.gif


The following link shows a nice little graph of how pH and temperature affect enzymatic activity.
Fried Zygote Sandwich
Death Adder
Death Adder
 
Posts: 58
Joined: Wed Sep 28, 2005 4:50 am

Postby baikuza » Mon Oct 03, 2005 12:06 pm

hi u there?
hm...
:idea:
the effect of heat of respiration to organism. right?
i think the heat from the respiration, maybe for us, human, it can keep our body warm. any one know that the efficiency(am i write a correct word) of respiration (aerob) is just 40%. so.. + 60% of energy that we get become calor.

then i am thinking the same answer as Mr. Mistery about enzyme. keep on fisiological homeostasis(i hope i write the correct words-homeostasis/homeotasis :idea: )

okay.. can i write more?
____________
uh...
baikuza
Coral
Coral
 
Posts: 429
Joined: Tue Aug 30, 2005 10:09 am
Location: Yogyakarta, indonesia, south-east asia

Postby victor » Tue Oct 04, 2005 11:44 am

I can say like this (maybe it's a little bit go to the animal cells):
in animal cells, glycolysis is occured in the cytoplasm where NAD+ is reduced with 2e- and forms NADH+H. then, this NADH+H carries the H+ ions and e- to the cristae mitochondrion when ETS occured. During the carrying, NADH+H lose some of it's kinetic energy and that's why the efficiency are lowered.
Anyway, for some info (I'm sure eeryone have known 'bout this)..if the efficiency of the respiration is 100%, then our body will have exploded into pieces because fusion reaction between H+ ions and O2 as the last e- acceptor....
regards,
Victor
Q: Why are chemists great for solving problems?
A: They have all the solutions.
User avatar
victor
King Cobra
King Cobra
 
Posts: 2668
Joined: Sat Apr 30, 2005 12:01 pm
Location: Yogyakarta, Indonesia..

Postby MrMistery » Tue Oct 04, 2005 7:11 pm

Are we talking about the influence of heat on respiration or the other way around?
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)


Return to Cell Biology

Who is online

Users browsing this forum: No registered users and 1 guest

cron