Anatomy & Physiology 1 – Quiz 2
Question1
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Which of the following organic groups does lactose belong to?
Select one:
a. carbohydrate
b. protein
c. lipid
d. nucleic acid
e. vitamin
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The correct answer is: carbohydrate
Question2
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Normal pH for blood is 7.35 to 7.45. Maintenance of the pH in this range is
Select one:
a. critical because enzymes work best within narrow ranges of pH.
b. not critical because extreme pH values do not affect enzyme function.
c. called denaturation.
d. not required.
e. None of these choices is correct.
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The correct answer is: critical because enzymes work best within narrow ranges of pH.
, Question3
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Phospholipids have a hydrophilic end which is
Select one:
a. polar and water-insoluble.
b. polar and water-soluble.
c. nonpolar and water -insoluble.
d. nonpolar and water-soluble.
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The correct answer is: polar and water-soluble.
Question4
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The smallest particle of an element that still exhibits the chemical characteristics of that
element is a(n)
Select one:
a. electron.
b. atom.
c. chemical bond.
d. orbital.
e. proton.
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The correct answer is: atom.
Question5
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Question1
Correct
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Question text
Which of the following organic groups does lactose belong to?
Select one:
a. carbohydrate
b. protein
c. lipid
d. nucleic acid
e. vitamin
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The correct answer is: carbohydrate
Question2
Correct
Mark 2.00 out of 2.00
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Question text
Normal pH for blood is 7.35 to 7.45. Maintenance of the pH in this range is
Select one:
a. critical because enzymes work best within narrow ranges of pH.
b. not critical because extreme pH values do not affect enzyme function.
c. called denaturation.
d. not required.
e. None of these choices is correct.
Feedback
The correct answer is: critical because enzymes work best within narrow ranges of pH.
, Question3
Correct
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Question text
Phospholipids have a hydrophilic end which is
Select one:
a. polar and water-insoluble.
b. polar and water-soluble.
c. nonpolar and water -insoluble.
d. nonpolar and water-soluble.
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The correct answer is: polar and water-soluble.
Question4
Correct
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Question text
The smallest particle of an element that still exhibits the chemical characteristics of that
element is a(n)
Select one:
a. electron.
b. atom.
c. chemical bond.
d. orbital.
e. proton.
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The correct answer is: atom.
Question5
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