17. Mitochondrial complexes I, III, and IV can all be considered to carry out an exergonic (energy- releasing) reaction coupled to an endergonic (energy-requiring) reaction. What endergonic reaction is carried out by all 3 of those protein complexes? What is the significance of this reaction in terms of cellular energy production? (2 sentences would be sufficient)

Notes on introduction to lab

What is the purpose of CPR ? A:To circulate blood around the body B: resetablish the normal heart beat C:To help the person breathe D:To keep the electrical activity of the brain going

If you are completing this question before your first lab session, you can either come back to this question after your lab session or you can read through the exercise in the lab module and complete the exercise on your own.   In lab, your group had to come up with a set of criteria to determine whether something is alive and apply it to a list of items.   Write a brief reflection on this exercise that addresses the following questions: How did this exercise expand on or contradict your prior understanding of the definition of life? Were there any items that were surprisingly difficult to categorize as either living or not living? Were there any criteria that were more or less important than you expected? Note: There is no "right" answer here, points will be given for any thoughtful, reasonable answer that addresses all the questions and relates to the lab content.