A&P EXAM 1 - GUYTON & HALL CH. 1 , 2,
4, 5 (Latest Update ) Questions
with Correct Answers 100% Verified
{Grade A}
Which of the following is an example of positive feedback in the body?
A. Clotting of blood
B. Return of blood pressure toward normal after a hemorrhage
C. Increased respiration rate caused by accumulation of carbon dioxide in the blood
D. Decreased sympathetic nervous system activity that occurs in response to
increased blood pressure - correct answer A
Which of the following is an example of a "feed forward" control system?
A. The arterial baroreceptor system
B. The progressive nature of uterine contractions during childbirth
C. Control of skeletal muscle movements by the brain
,D. Generation of an action potential - correct answer C
Which of the following statements about homeostasis is incorrect?
A. It refers to the maintenance of a stable internal environment for the body
B. Homeostatic mechanisms do not operate in diseases
C. Homeostasis requires integrated actions of the cells, tissues, organs, and multiple
nervous,
hormonal, and local control systems
D. Homeostatic compensations that begin after a major environmental challenge may
contribute to
abnormalities of body function - correct answer B
Which of the following is an example of negative feedback?
A. Arterial baroreceptor control of blood pressure
B. Excitation of the respiratory center by increased blood carbon dioxide concentration
,C. Hemorrhagic shock cause by severe blood loss
D. A and B
E. A, B, and C - correct answer D
Use the terms in the following list to identify the cellular location for the steps involved
in the synthesis
and packaging of a secreted protein in questions 1--3.
A. Nucleolus
B. Nucleus
C. Agranular endoplasmic reticulum
D. Granular endoplasmic reticulum
E. Golgi apparatus
F. Endosomes
G. Peroxisomes
H. Lysosomes
, I. Cytosol
1. Initiation of translation
2. Protein sorting and packaging
3. Gene transcription - correct answer 1. I
2. E
3. B
Which of the following is true for both pinocytosis and phagocytosis?
A. Involves recruitment of actin filaments
B. Occurs spontaneously and nonselectively
C. Permits uptake of bacterium into cytosol
D. Is only observed in macrophages and neutrophils
E. Does not require adenosine triphosphate - correct answer A
4, 5 (Latest Update ) Questions
with Correct Answers 100% Verified
{Grade A}
Which of the following is an example of positive feedback in the body?
A. Clotting of blood
B. Return of blood pressure toward normal after a hemorrhage
C. Increased respiration rate caused by accumulation of carbon dioxide in the blood
D. Decreased sympathetic nervous system activity that occurs in response to
increased blood pressure - correct answer A
Which of the following is an example of a "feed forward" control system?
A. The arterial baroreceptor system
B. The progressive nature of uterine contractions during childbirth
C. Control of skeletal muscle movements by the brain
,D. Generation of an action potential - correct answer C
Which of the following statements about homeostasis is incorrect?
A. It refers to the maintenance of a stable internal environment for the body
B. Homeostatic mechanisms do not operate in diseases
C. Homeostasis requires integrated actions of the cells, tissues, organs, and multiple
nervous,
hormonal, and local control systems
D. Homeostatic compensations that begin after a major environmental challenge may
contribute to
abnormalities of body function - correct answer B
Which of the following is an example of negative feedback?
A. Arterial baroreceptor control of blood pressure
B. Excitation of the respiratory center by increased blood carbon dioxide concentration
,C. Hemorrhagic shock cause by severe blood loss
D. A and B
E. A, B, and C - correct answer D
Use the terms in the following list to identify the cellular location for the steps involved
in the synthesis
and packaging of a secreted protein in questions 1--3.
A. Nucleolus
B. Nucleus
C. Agranular endoplasmic reticulum
D. Granular endoplasmic reticulum
E. Golgi apparatus
F. Endosomes
G. Peroxisomes
H. Lysosomes
, I. Cytosol
1. Initiation of translation
2. Protein sorting and packaging
3. Gene transcription - correct answer 1. I
2. E
3. B
Which of the following is true for both pinocytosis and phagocytosis?
A. Involves recruitment of actin filaments
B. Occurs spontaneously and nonselectively
C. Permits uptake of bacterium into cytosol
D. Is only observed in macrophages and neutrophils
E. Does not require adenosine triphosphate - correct answer A
