Investigating Animal Respiration with Electronic Probes
- Author:
- John Acuff, Robert Hodson
- Subject:
- Science and Technology
- Institution Name:
- University of Delaware
- Collection:
- Association for Biology Laboratory Education (ABLE)
- Grade Level:
- Post-secondary
- Abstract:
This computer-assisted investigation allows students to explore the effect of variables on animal respiration using research-quality instrumentation. The model investigation is with a lizard (anole) exposed to a range of temperatures that are only moderately stressful and do no harm. The animal is contained in a transparent chamber with gas inlet and outlet ports and an electronic thermometer. Carbon dioxide-free air is pumped at a constant rate into the chamber. The outgoing air enriched in carbon dioxide passes in turn through an electronic oxygen sensor, a simple drying apparatus, and an electronic carbon dioxide sensor that measures concentration by absorption of infra-red light. Analog voltage signals from the sensors are electronically converted to digital with an interface device and displayed by computer software. Additional experimental questions students may ask and other animals students may use are suggested.
- Course Type:
- Learning Module
- Languages:
- English
- Material Type:
- Activities and Labs, Lesson Plans
- Media Format:
- Downloadable docs
- Conditions of Use:
-
Custom Permissions
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyright owner. Use solely at one's own institution with no intent for profit is excluded from the preceding copyright restriction, unless otherwise noted on the copyright notice of the individual chapter in this volume. Proper credit to this publication must be included in your laboratory outline for each use; a sample citation is given [on the copyright page of each volume]. Upon obtaining permission or with the "sole use at one's own institution" exclusion, ABLE strongly encourages individuals to use the exercises in this proceedings volume in their teaching program.
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