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PDF Download FREE PHYSIOLOGY AND STUDY GAMES ABOUT A&P 2 - E4
- P4 EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -76 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: Physiological pH control mechanisms are _______ action buffers.
Answer:
delayed
Question 2: What is HPO4-2 or H2PO4-?
Answer:
phosphate
Question 3: Carbonic acid (H2C03) is formed by ______ metabolism.
Answer:
aerobic glucose Question 4: Buffer pairs are present in body fluids; mainly carbonic acid, proteins, hemoglobin, acid phosphate, and ______ and ______ salts of these weak acids.
Answer:
sodium, potassium
Question 5: Ammonium ion displaces basic ion (mainly ______) from a salt; basic ion is then reabsorbed back into blood in exchange for ______ ion excreted.
Answer:
sodium, ammonium Question 6: The chloride shift makes it possible for ______ to be buffered in the red blood cell and then carried as bicarbonate in the plasma.
Answer:
carbonic acid
Question 7: ______ is formed by aerobic glucose metabolism.
Answer:
carbonic acid (H2C03) Question 8: The kidneys can eliminate fewer ___ while reabsorbing less ______ when pH tends toward alkaline side.
Answer:
H+, base Question 9: The ______ makes it possible for carbonic acid to be buffered in the red blood cell and then carried as ______ in the plasma.
Answer:
chloride shift, bicarbonate Question 10: Prolonged hypoventilation, by eliminating too little _____ causes increase in blood carbonic acid (H2CO3) and consequently in blood H+, thereby may produce ______.
Answer:
carbon dioxide (CO2), acidosis Question 11: ______ are buffered mainly by carbonic acid (when homeostasis of pH at ___ exists)
Answer:
bases, 7.4
Question 12: ______ are formed in the breakdown of fats.
Answer:
acidic keytone bodies
Question 13: ______ pH control mechanisms are delayed action buffers.
Answer:
physiological Question 14: Volatile acids, chiefly ______ acid, is buffered mainly by potassium salts of ______ and ______.
Answer:
carbonic, hemoglobin, oxyhemoglobin Question 15: Bases are buffered mainly by ______ (when homeostasis of pH at ___ exists)
Answer:
carbonic acid, 7.4 Question 16: The secretion of ______ into urine occurs when blood CO2, H2CO3, and H+ increase above normal.
Answer:
H+ Question 17: Buffers consist of weak ______ (or its ______) and ______ salt of that acid.
Answer:
acid, salt acid, basic
Question 18: What is H2CO3?
Answer:
carbonic acid Question 19: Precise regulation of ______ at the cellular level is necessary for survival.
Answer:
pH
Question 20: With increased respirations, less ______ remains in blood, hence _____ carbonic acid and _____ H+.
Answer:
carbon dioxide, less, fewer
Question 21: Acidosis causes ______.
Answer:
hyperventilation Question 22: The ______ equation is a mathematical formula that explains the relationship between hydrogen ion concentration of body fluids and the ratio of base bicarbonate to carbonic acid.
Answer:
Henderson-Hasselbalch
Question 23: What 5 elements are sources of pH?
Answer:
carbonic acid (H2CO3), lactic acid, sulfuric acid, phosphoric acid, acidic keytone bodies Question 24: pH control mechanisms are extremely effective and normally maintain pH within very narrow range of _______.
Answer:
7.36 to 7.41 Question 25: ______ acids, chiefly carbonic acid, is buffered mainly by ______ salts of hemoglobin and oxyhemoglobin.
Answer:
volatile, potassium Question 26: ______ acid is formed in the breakdown of ______ and ribonucleotides.
Answer:
phosphoric, phosphoproteins
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