BIO 431 Ch. 27 Exam Questions With
All Correct Answers Rated A+
80% of the extracellular fluid is
a) Plasma
b) Cytosol
c) Interstitial fluid
d) Lymph
e) Bile - CORRECT ANSWER-c) Interstitial fluid
Natriuresis
a) Is decreased Na+ levels in urine
b) Is decreased Cl- levels in urine
c) Is increased K+ levels in urine
,d) Is increased PO- levels in urine
e) None of these choices - CORRECT ANSWER-e) None of these choices
Which of the following is the main factor that determines water loss?
a) Defecation
b) Sweating
c) Urination
d) Evaporation through the skin
e) Exhalation of water vapor - CORRECT ANSWER-c) Urination
In intracellular fluid the most abundant cation is:
a) Na+
b) Cl-
c) K+
d) HPO42-
e) HCO3- - CORRECT ANSWER-c) K+
In extracellular fluid the most abundant cation is
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, A) Na+
B) Cl-
C) K+
D) HPO42-
E) HCO3- - CORRECT ANSWER-Na+
Which protein is the main protein buffer in blood plasma?
a) Albumin
b) Hemoglobin
c) Complement
d) Fibrin
e) Calmodulin - CORRECT ANSWER-a) Albumin
Inadequate exhalation of carbon dioxide can cause
a) Blood pH to drop
b) Alkalosis
c) Respiratory compensation
d) Unequal distribution of water
All Correct Answers Rated A+
80% of the extracellular fluid is
a) Plasma
b) Cytosol
c) Interstitial fluid
d) Lymph
e) Bile - CORRECT ANSWER-c) Interstitial fluid
Natriuresis
a) Is decreased Na+ levels in urine
b) Is decreased Cl- levels in urine
c) Is increased K+ levels in urine
,d) Is increased PO- levels in urine
e) None of these choices - CORRECT ANSWER-e) None of these choices
Which of the following is the main factor that determines water loss?
a) Defecation
b) Sweating
c) Urination
d) Evaporation through the skin
e) Exhalation of water vapor - CORRECT ANSWER-c) Urination
In intracellular fluid the most abundant cation is:
a) Na+
b) Cl-
c) K+
d) HPO42-
e) HCO3- - CORRECT ANSWER-c) K+
In extracellular fluid the most abundant cation is
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
, A) Na+
B) Cl-
C) K+
D) HPO42-
E) HCO3- - CORRECT ANSWER-Na+
Which protein is the main protein buffer in blood plasma?
a) Albumin
b) Hemoglobin
c) Complement
d) Fibrin
e) Calmodulin - CORRECT ANSWER-a) Albumin
Inadequate exhalation of carbon dioxide can cause
a) Blood pH to drop
b) Alkalosis
c) Respiratory compensation
d) Unequal distribution of water