Chapter 9 Test Review
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What is homeostasis? What are some of the things that can affect
homeostasis?
How many body systems work together to maintain homeostasis?
What does each body system do to help maintain homeostasis?
Nervous system
- Circulatory system
Endocrine system
- Respiratory system
Muscular system
- Muscular system
Integumentary system
- Skeletal system
Excretory system
- Digestive system
Reproductive system
What are the feedback mechanisms used to maintain homeostasis? Describe
them.
What is an example of a negative feedback mechanism? What is an example of
a positive feedback mechanism?
What is thermoregulation?
Draw a flow chart describing how our body maintains an internal body
temperature when it is cold and hot outside.
How is our internal temperature related to a thermostat?
What is the purpose of the hypothalamus?
How is our hypothalamus involved in maintaining our internal temperature?
List 4 mechanisms that exchange thermal energy. When do these mechanisms
occur? Explain each of them
List different types of homeotherms and describe their mechanisms to
maintain an internal temperature.
How do animals survive extreme changes in climate?
Through what process are our cells able to maintain proper water balance?
What is osmosis? What are the different types of environments that our cells
can experience?
What is osmoregulation? Which organ system helps to maintain a
osmoregulation?
What is an osmole?
In order for our cells to maintain an isoosmotic environment, what needs to
remain in equilibrium?
Label the structures in the slides below.
20. Fill in the following table using your notes.
Waste
Origin of Waste
Organ of Excretion
21. Using a flowchart describe the mechanism of how anti-diuretic hormone
(vasopressin) helps the kidneys to reabsorb water and decrease Na⁺ levels.
Include a negative feedback mechanism once homeostasis is achieved.
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What are the functions of the kidney’s?
What is the functional unit of the kidney? How many make up each kidney?
What is the function of the nephron?
What is deamination? Which organ in our body conducts this process?
What is the toxic byproduct of deamination? Which cycle does the liver use to
convert ammonia into a urea?
What is the purpose of the bicarbonate buffer system? What part of the
nephron helps maintain proper blood pH? Describe the mechanism this
structure takes when environments are too acidic, too basic.
What is the ultimate goal in the excretory system?
Describe each step that is involved with the formation of urine in detail.
How do our kidneys regulate blood oxygen levels? What is this hormone
called?
Describe two types of kidney diseases? List two treatments?