Notes_for_Posting_Chapter_44_Part_2

Notes_for_Posting_Chapter_44_Part_2 - Announcements Take...

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1 Announcements Take Quiz – You should all have a 100% by Friday At 7pm Animal of the Week for Next week: Banana Slug OR California Ground Squirrel (Beechy Ground Squirrel) Next Week Seymour Marine Discovery Center - On your own BUT you still need to go to section. TAs will review for midterm. On Sat. Feb 2, I will post a review sheet and the quiz questions for all the quizzes. If you can’t make my office hours – make an appointment! This is a great way to study! Recap of Oxygen-Hemoglobin Disassociation Curves What do the axes mean? What does it mean when we say the % Saturation of Hemoglobin What does partial pressure of O 2 mean? Why is the curve shaped the way it is? What is cooperation? Why can the curve shift right and left and why is this important? Partial pressure of O 2 mm HG % Saturation of Hb 0 100 0 100 20 40 60 80 20 40 60 80 Tissues At rest Lungs Amount of O 2 unloaded during normal metabolism Tissues At exercise Amount O 2 available to highly metabolic tissues Oxygen-hemoglobin dissociation curve • When P O2 is high, more O 2 binds to hemoglobin • When P O2 is low, less O 2 binds to hemoglobin • Sigmoidal curve due to cooperation – shape of hemoglobin changes as oxygen loads and unloads - Active metabolic tissues generate products that can shift the curve - Shifting the curve, different tissues get oxygen from Hb in proportion to their metabolic needs - 2 types of shifts Right – more O 2 released (Bohr Shift) Left – less O 2 released The Bohr Shift What happens when you exercise? Note – dotted Line is original curve! Curve can shift in response to cellular metabolic waste products ¾ Right shift - Increasing amounts of CO 2 , H + (acid), temperature ¾ Left shift - Decreasing amounts of CO 2 , H + (acid), temperature The Bohr Shift
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2 Recap of Oxygen-Hemoglobin Disassociation Curves What do the axes mean? What does it mean when we say the % Saturation Of Hemoglobin What does partial pressure of O 2 mean? Why is the curve shaped the way it is? What is cooperation? Why can the curve shift right and left and why is this important? Urine is____________________? Jeopardy Time A. Nitrogenous waste B. A filtrate C. A concentrated solution of waste products from the body D. All of the above Jeopardy Time… Marine fishes avoid water balance problems by a. producing a large volume of dilute urine. b. not drinking water. c. having gill epithelial cells that recapture lost salts from the environment. d. producing small volumes of concentrated urine. e. a, b and c. Transport epithelium Kidney Structure and Function Kidney Structure and Function Function of the kidney : 1) Filter toxins out of the blood and transport them into the urinary bladder to be excreted. 2) water balance and salt balance effector organ. Based on function of the kidney
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This note was uploaded on 04/06/2008 for the course BIO 20b taught by Professor Dunkin&parker during the Winter '08 term at UCSC.

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Notes_for_Posting_Chapter_44_Part_2 - Announcements Take...

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