Module 8 Intro
1. Module 8 Intro
1.53. Page 5
Module 8—Circulation, Immunity, and Excretion
Reflect and Connect
Self-Check
SC 7. Complete this Self-Check activity.
You may also want to try working through Chapter Review questions on page 328 and 329 of the textbook. You should save your responses to your course folder for exam review. If you would like feedback on any of these questions, you may contact your teacher.
Going Beyond
As you can read on page 317 in the textbook, the maintenance of blood pH is a complex process that involves chemical buffering in the blood, regulation of the respiratory rate, and, most importantly, control of the excretion of H+ and the reabsorption of HCO3– at the kidney.
When the body is pushed to extremes by exercise, the acid-base equilibrium may be disrupted. Exercise increases the rate of cellular respiration and thus the breakdown of glucose and the subsequent production of CO2 as well as the generation of H+. These products cause the blood pH to drop below its normal value of 7.4. This circumstance, known as acidosis, prevents many normal metabolic reactions from occurring and may even lead to death.
Module 8: Lesson 9 Assignment
Remember to submit the Assignment answers to your teacher as part of your Lesson 9 Assignment.