Animal Physiology I Biology 3830 H PDF

Animal Physiology I Biology 3830 H Instructor: Gary Burness Office: LHS C252 Office hours: Monday: 10:00-12:00 Email: [email protected] Laboratory demonstrator: Smolly Coulson Office: D219...

Animal Physiology I Biology 3830 H Instructor: Gary Burness Office: LHS C252 Office hours: Monday: 10:00-12:00 Email: [email protected] Laboratory demonstrator: Smolly Coulson Office: D219 Email: [email protected]  Notetakers Request from Student Accessibility Services Volunteerism will appear on your Co-curricular Record Log in to MyTrent – Find SAS Portal in the Support tab under Academic support – Follow link for Volunteer Notetaker sign-up, login & upload  About the course 2 lecture hours and 3 Lab reports (wet labs) (x 2) 30% laboratory hours per week Lab assignments ( x 4) 8% Oral presentation + Lay Summary 10% Lectures: Mid-term (Oct 18) 15% Monday: 8:00AM In-class exercise (Nov ~25) 2% Tuesday: 8:00PM Final exam 35% Total 100% Labs start Monday, Sept 16 Please see syllabus for lab-related deadlines Textbooks Recommended Animal Physiology. (2022). By: Hill, Cavanaugh and Anderson, M. (5th Edition). Published by Sinaur Associates. Older editions are fine too! Policy on late assignments We do not accept late assignments. Speak to me, Smolly, or your TA in advance of deadline if an illness is preventing you from completing an assignment. Assignments cannot be submitted via email  Plagiarism You will often work in groups in the lab, however all lab reports are to be written independently. Lab assignments will be turned in as a group. Plagiarism is a very serious offense. Anyone caught misrepresenting work from other sources as their own will face the full consequences that university policy dictates. Plagiarism means using the words, work or ideas of another author without proper acknowledgement (intentionally or unintentionally). Plagiarising includes: o Cutting and pasting from another author or work, including the web, with OR without attribution [If the phrasing is too similar to the original author, including a citation does not negate plagiarism] o Rewording another writer’s ideas/work, without acknowledgement o Representing the work of others as your own o Using AI generators to create text for you If in doubt about whether you have plagiarized – ask! What is animal physiology? The study of how animals work Two types of questions: 1. Proximate cause (mechanism) Explain HOW an organism works. How it is built functionally. 2. Ultimate cause (origin): Explain why it is built a certain way. Need to consider the impact of evolutionary change and adaptive significance. Physiology is an integrative field of study  Hallmark of physiology is diversity - but there are unifying themes 1. Physiological processes obey laws of physics and chemistry 2. Physiological processes are usually regulated 3. Physiological phenotype is a product of the genotype and environment 4. Genotype is the product of evolution 1. Physical and chemical laws Mechanical engineering rules apply to physical properties of animals (e.g., collagen in aorta). Chemical laws govern molecular interactions (e.g., effects of temperature). Body size influences biochemical and physical patterns Image: BioExpedition.com 2. Processes are regulated Animals must deal with constantly changing environment. – External – Endogenous (self-imposed) The organism must maintain a suitable internal environment (Homeostasis) Control of homeostasis Controlled by feedback loops (usually negative) or reflex control pathways, using antagonistic controls. Fig 1.9 Moyes and Schulte, 2016  Strategies for coping with changing conditions Conformers: Allow internal conditions to change with external conditions Regulators: Maintain relatively constant internal conditions regardless of external conditions Temperature and physiological strategy may help determine range limits 3. Phenotype is product of genotype & environment Genotype: genetic make-up Phenotype: morphology, physiology and behaviour Phenotypic plasticity (non-reversible): Single genotype generates more than one phenotype depending on environment Phenotypic flexibility (reversible) Within-generation plasticity (acclimation) 4. Genotype is product of evolution Modified from Moyes and Schulte (2016) Next class: Cardiac physiology Ch 25 Hill et al. (2022)