Fill in the blanks to complete the RAA pathway. (Total 8 poi…

Fill in the blanks to complete the RAA pathway. (Total 8 points; 1 point each)                       Organ:    Organ:                  Enzyme:    ACE                                                                                                   ↓                                                  ↓                                                        (a hormone) Angiotensinogen→→→  Organ secretes angiotensinogen:                                                                                              Organ secretes the last hormone:

One of you has smoked cigarettes for years and is having bre…

One of you has smoked cigarettes for years and is having breathing difficulties. He/She has been diagnosed with emphysema. Describe specific kinds of structural changes you would expect to observe in this student (2 points). How are air flow (2 points) and gas exchange (2 points) affected by these structural changes?