Re: [HAPS-L] Metabolism or Digestive lab

["Janet Sherman" <jsherman@xxxxxxx>]

A simple variant on the old BMR lab is to have students exhale through a
straw into a weak solution of NaOH and an indicator (I use
phenophthalein) and time how long it takes to neutralize the base.  I
have the students do this before and after a simple exercise, usually a
brisk jog down our short hallway so I don't have 24 students waiting for
one piece of exercise equipment and the students really enjoy the break
from routine.
I tie this to pH and regulation of respiratory rate but it could also be
combined with a lab on CV fitness.  The APS has some nice CV fitness
labs that also look at changes before and after exercise.

> > > l.day@xxxxxxx 12/29/05 12:06 PM >>>

I am redoing our A&P 2 labs for this spring (better late then never). We
use
to do a digestive enzyme lab, but most students said they have done this
lab
in a biology course. A while ago we use to do an archaic lab for
metabolism
using bags that students would exhale into and then measure the CO2 to
determine BMR. We have since got rid of that equipment. 

So I am trying to find a really interesting lab for health professionals
that would be a physiology based lab for either metabolism or digestion.
If
anyone has any suggestions of ones that work well and students get a lot
out
of, I would appreciate it.

Thanks.
Leslie Day
Biology Department
Northeastern University
L.Day@xxxxxxx
617-373-3780

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