AP Biology Pre-Discussion Questions: Physiology 3- Transport
Instructions:
Topic Presentation:
Textbook Reading:
Biozone Pages:
Supplementary Resources:
Crashcourse Biology Videos:
Videos by Paul Anderson:
Part 1: Plant Transport
Questions to answer:
Things you should make sure you understand:
Part 2: Animal Transport (Circulation)
Questions to answer:
Things you should make sure you understand:
Part 3: Animal Transport (Gas Exchange)
Questions to answer:
Things you should make sure you understand:
Instructions:
●Open the presentation.
●Watch the embedded video clips and move through the embedded content.
●Answer the “Questions to answer”.
●Make sure you understand the “Things you should make sure you understand”.
●Feel free to view the “Supplementary Resources”.
●Write down any questions that you have about the material.
Topic Presentation:
click here
Note: This is a 3-part topic.
Textbook Reading:
●Part 1: Chapter 25 (sections 25.3 - 25.4)
●Part 2: Chapter 38 (whole chapter)
●Part 3: Chapter 37 (whole chapter)
Biozone Pages:
Volume 2:
●part 1 - pp. 69 - 72, 75 - 77, 79-83, 88-89
●part 2 - pp. 144-166
●part 3 - pp. 93-104
Supplementary Resources:
Crashcourse Biology Videos:
Vascular Plants = Winning! - Crash Course Biology #37
Videos by Paul Anderson:
“Plant Nutrition & Transport”
“The Circulatory System”
“The Respiratory System”
“Organ Systems”
“Cooperative Interactions”
“Homeostasis Hugs”
Part 1: Plant Transport
Questions to answer:
1Some plants (the bryophytes) do not have vascular tissue. How does the lack of vasculature tissue constrain bryophyte anatomy?
2What is the function of the casparian strip in plant roots?
3Explain how transpirational pull is created starting with the roots and ending with evaporation of water at the stomates.
4What are the physiological consequences of a plant keeping its stomates closed during the day time?
5Describe an example of a physiological adaptation that minimizes water loss in a particular plant.
6Describe the pressure flow hypothesis for phloem transport of sap.
Things you should make sure you understand:
(feel free to ask questions about them in class)
●How the processes of plant transport depend upon water potential and how that water potential is generated as a function of pressure and solute concentration.
●The consequences of adaptations that minimize water loss on plant physiology.
Part 2: Animal Transport (Circulation)
Questions to answer:
1What are the trends that are seen in animal circulatory systems over evolutionary time?
2Compare the open circulatory system of arthropods with the closed circulatory systems of vertebrates.
3Why has evolution resulted in the development of a 4-chambered heart in two distinct lineages?
4Explain how the components of blood allow for the various functions of blood.
5Compare arteries, capillaries and veins.
6Diagram the path that blood flows through the mammalian body. Include all four chambers of the heart, and all arteries and veins that lead immediately to and from the heart. Indicate where blood is the most oxygenated, and where it is the least oxygenated.
7Explain how heart beat is regulated in the mammalian heart, and how that heartbeat relates to blood pressure.
Things you should make sure you understand:
(feel free to ask questions about them in class)
●The consequences of particular evolutionary trends in circulatory systems for the organisms that demonstrate those trends.
●The structure and function of all parts of the mammalian circulatory system.
●How the components of the circulatory system work with other body systems to maintain homeostasis.
●How the circulatory system is regulated.
●The causes, effects, and treatments of various circulatory system disorders.
Part 3: Animal Transport (Gas Exchange)
Questions to answer:
1Why do animals need specialized systems to exchange gasses with the environment?
2What are the characteristics of a functional respiratory surface?
3Diagram the countercurrent exchange system of a fish gill, and explain how it maximizes diffusion of respiratory gasses.
4Why are capillaries required for gas exchange?
5Diagram an alveolus to show blood flow, air flow, and oxygenation of both.
6Compare how oxygen and carbon dioxide are transported in the bloodstream.
7What happens to hemoglobin in conditions of low pH? Why is this adaptive for mammals?
8How is breathing controlled by the nervous system in mammals?
Things you should make sure you understand:
(feel free to ask questions about them in class)
●The consequences of particular evolutionary trends in respiratory systems for the organisms that demonstrate those trends.
●The structure and function of all parts of the mammalian respiratory system.
●How the components of the respiratory system work with other body systems to maintain homeostasis.
●How the respiratory system is regulated.
●The causes, effects, and treatments of various respiratory system disorders.