Download AP Biology Potential Essay Questions for Unit 3

AP Biology Potential Essay Questions for Unit 7
1. Assume you are a red blood cell and describe your journey through the human body starting
from and ending at the right atrium. Describe any changes you notice in the blood as you
travel through the organs and tissues of the body; be sure to focus on what happens
physiologically at these areas: muscles (general tissues), lungs, kidney, and intestines/liver.
2. The graph below shows the response of the human immune system to exposure to an antigen.
Use this graph to answer part a and part b of this question.
a. Describe the events that occur during period I as the specific immune system responds
to the initial exposure to the antigen
b. Describe the events that occur during period II following a second exposure to the same
antigen.
c. Explain how infection by the AIDS virus (HIV) affects the function of both T and B
lymphocytes.
Period I
Period II
Antibody Titer
in Serum
Antigen
Injected
0
40
80
120
Time in Days
160
200
240
3. After school one day you notice that you are starving and decide to go get a cheeseburger. As
you are eating, you think back to all you know about the digestive process. Assuming you
have protein (meat), carbohydrates (bun) and fat (meat, mayo, cheese), describe how each
nutrient is processed (digested/absorbed) as it passes from the mouth to the anus in your
complete digestive tract. Be sure to name every part of the passageway, its function(s) and
enzyme(s) and any accessory organs connected to it and their function(s) and enzyme(s).
4. Concerning the mammalian respiratory system:
a. Describe each structure and its function(s).
b. Describe the mechanisms of inspiration and expiration
c. Describe the exchange process of oxygen and carbon dioxide that occur at the alveoli
and muscle cells.
d. Describe how gases are transported in the blood as well as an explanation of why the %
saturation of hemoglobin varies at different partial pressures, temperatures and pH.