Please help 'rate of Photosynthesis'

Plants!

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
whitemage
Garter
Garter
Posts: 3
Joined: Mon Oct 31, 2005 11:53 pm

Please help 'rate of Photosynthesis'

Post by whitemage » Tue Nov 01, 2005 12:04 am

Hi,

I need some help with this question:

"Why does the rate of photosynthesis increase, peak, and then decreases as temperature increases?"

I don't have a biology book, because I am studying Anatomy & Physiology, but we are doing some topics about Biology and well I tried to resort to searching on the web and an online biology book site: http://www.emc.maricopa.edu/faculty/far ... okTOC.html

Can someone please help me with this or at least direct me to a site where I can find the info? Thanks in advance!

User avatar
Navin
Coral
Coral
Posts: 277
Joined: Thu Jun 09, 2005 2:23 pm
Location: Singapore (Asia Pacific)

Post by Navin » Tue Nov 01, 2005 8:28 am

Its all about the enzymes.

At high tempearture (around 50 degrees Celcius or more) the enzymes denature and photosynthesis stops.

The rate of photosynthesis peaks when the temperature is optimum for maximum enzyme activity.
Botany is the study of what? Bottoms!

whitemage
Garter
Garter
Posts: 3
Joined: Mon Oct 31, 2005 11:53 pm

Post by whitemage » Thu Nov 03, 2005 5:31 am

Thanks a lot! ^^

siya
Garter
Garter
Posts: 16
Joined: Thu Nov 03, 2005 3:27 am

Post by siya » Thu Nov 03, 2005 6:26 am

normally the photosynthesis rate increases with rise of temp.it reaches a max at 35 C.further rise leads to a fall in the rate and it completely stops at 45 C.it also decreases with fall in temp.however photosynthesis can take place over a wide range of temp.
also the max and optimum temp varies with diff species.
siya

Post Reply

Who is online

Users browsing this forum: No registered users and 5 guests