Question 1 of 32 3.0/ 3.0 Points
The anatomical term which best describes a structure that is found toward the head is
C.superior
Question 2 of 32 3.0/ 3.0 Points
In a negative feedback system, the response of the effector to a stimulus
C.reverses the original stimulus.
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Question 3 of 32 3.0/ 3.0 Points
The science dealing with body functions is called
E.physiology
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Question 4 of 32 3.0/ 3.0 Points
The maintenance of relatively stable conditions within the body is known as
B.homeostasis.
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Question 5 of 32 3.0/ 3.0 Points
The spleen and liver are located in the
A.abdominal cavity.
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Question 6 of 32 3.0/ 3.0 Points
Which of the following structures of a feedback system sends input to the control center?
.
B.receptor.
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Question 7 of 32 3.0/ 3.0 Points
The anatomical term for navel is
D.umbilical.
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Part 2 of 6 - 15.0/ 24.0 Points
Question 8 of 32 3.0/ 3.0 Points
A polysaccharide that serves as common storage form of energy in liver and muscle cells is called
.
B.glycogen.
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Question 9 of 32 0.0/ 3.0 Points
An atom that gives up electrons becomes a(n)
C.anion.
Feedback: Learning Objective: Define anion, cation, and electrolyte.
Please review Section 2.1 Introduction to Chemistry.
Question 10 of 32 3.0/ 3.0 Points
Which of the following molecules contains the approximately 30,000 genes found in the cell’s nucleus?
D.Deoxyribonucleic Acid (DNA)
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Question 12 of 32 3.0/ 3.0 Points
The most highly concentrated source of chemical energy found in the human body is found in
E.triglycerides.
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Question 14 of 32 3.0/ 3.0 Points
Which of the following is an abundant element found in both water molecules and most organic molecules?
D.hydrogen
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Question 15 of 32 3.0/ 3.0 Points
Which of the following describes the most acidic solution?
A.pH 4
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Part 3 of 6 - 15.0/ 21.0 Points
Question 16 of 32 3.0/ 3.0 Points
Water is lost from the body through
D.the skin.
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Question 17 of 32 3.0/ 3.0 Points
Increased depth and rate of respiration
D.causes all of these events.
.
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Question 18 of 32 3.0/ 3.0 Points
The pH of extracellular fluid, such as blood plasma, of a healthy person is
D.slightly basic.
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Question 19 of 32 3.0/ 3.0 Points
Most solutes in body fluids are
A.electrolytes.
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Question 21 of 32 3.0/ 3.0 Points
Chemical substances in body fluids that prevent rapid changes in pH are called
A.buffers.
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Question 23 of 32 3.0/ 3.0 Points
Respiratory alkalosis is a result of _______.
C.too little carbon dioxide in the blood
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Question 25 of 32 3.0/ 3.0 Points
Respiratory acidosis can be a result of _______.
D.asthma
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Question 26 of 32 3.0/ 3.0 Points
What is the normal range for the partial pressure of carbon dioxide in the blood?
B.35-45 mm Hg
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Question 27 of 32 3.0/ 3.0 Points
Respiratory acidosis is a result of _______.
C.an increase in the H+ in the blood
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Question 28 of 32 0.0/ 3.0 Points
Too much carbon dioxide in the blood can be the result of _______.
D.hyperventilation
uestion 29 of 32 3.0/ 3.0 Points
What is the normal range for pH in the blood?
B.7.35-7.45
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Part 5 of 6 - 8.0/ 8.0 Points
Answer the following question in your own words without using any resources. Your answer should be written in complete sentences using correct grammar, spelling, and terminology.
Question 30 of 32 4.0/ 4.0 Points
Briefly explain what happens to the pH and carbon dioxide levels in the blood during hyperventilation. The ph increases and carbon dioxide decreases
Feedback: Learning Objective: Describe the effects of hyperventilation and hypoventilation on blood PCO2 and pH.
Please review Lab Exercise 10, Activity 1.
Question 31 of 32 4.0/ 4.0 Points
In the simulation, why did respirations slow or briefly stop completely after hyperventilation?When normal breathing is returning, there is a brief period of about 10 second where the breath is held in order to retain CO2 before returning to normal breathing after hyperventilation to normal breathing.
Feedback: Learning Objective: Describe the effects of hyperventilation and hypoventilation on blood PCO2 and pH.
Please review Lab Exercise 10, Activity 1.
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