a level coursework

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

Moderators: Leonid, amiradm, BioTeam

Post Reply
~R~
Garter
Garter
Posts: 1
Joined: Wed Dec 01, 2004 4:57 pm

a level coursework

Post by ~R~ » Wed Dec 01, 2004 5:04 pm

i need help with my coursework!!!
im finding out wether temperature effects the heart rate of daphnia.
i would like advice on how to maintain the temperture while looking at the daphnia under a microscope, how would i go about this?
thanx
xXx

User avatar
biostudent84
Site Admin
Site Admin
Posts: 974
Joined: Thu Nov 11, 2004 6:00 am
Location: Farmville, VA
Contact:

Post by biostudent84 » Wed Dec 01, 2004 5:39 pm

Most definetly! All (or nearl all...I can't think of an exception) microscopic organisms are poilikilotherms. The warmer the enviornment, the faster any rate will be in its body...that is until its proteins begin to denature.

For microscope work, best thing I can think of is to CAREFULLY waterbath the sample, or use progressively warm water from the tap. Maybe your teacher has a heat-lamp you can point at the stage while you observe? Not sure how you can mantain an exact temperature...small bits of water that you put on a slide are nearly impossible to measure.

Guest

Post by Guest » Wed Dec 01, 2004 6:29 pm

thank you for your help!
xXx

User avatar
biostudent84
Site Admin
Site Admin
Posts: 974
Joined: Thu Nov 11, 2004 6:00 am
Location: Farmville, VA
Contact:

Post by biostudent84 » Thu Dec 02, 2004 2:49 am

Anytime =)

Post Reply

Who is online

Users browsing this forum: No registered users and 3 guests