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True/False Quiz



This activity contains 10 questions.

Question 1
1
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Cells often store energy in the form of electrochemical gradients.
   
 
End of Question 1


Question 2
2
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When placed into a hypertonic solution (e.g. sea water), a human red blood cell would most likely swell and burst.
   
 
End of Question 2


Question 3
3
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The neutral pH of pure water is always 7.00.
   
 
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Question 4
4
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Enzymes are catalysts that speed up the rate of chemical reactions by reducing the energy of activation.
   
 
End of Question 4


Question 5
5
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Allosteric regulators are molecules that modify an enzyme's kinetics by binding to the enzyme's active site.
   
 
End of Question 5


Question 6
6
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Cells can store energy in the form of reducing equivalents, such as NADH.
   
 
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Question 7
7
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A protein loses its functional effectiveness when it is denatured, i.e. when its 3-dimensional structure becomes unfolded.
   
 
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Question 8
8
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Cells use glycolysis only under anaerobic conditions, and the Krebs cycle when oxygen is available.
   
 
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Question 9
9
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Cholesterol is a normal component of many cellular membranes and is essential for the synthesis of mammalian steroid hormones.
   
 
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Question 10
10
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Depolarization of a membrane can occur either through the opening of sodium channels (allowing Na+ to enter the cell) or the opening of potassium channels (allowing K+ to leave the cell).
   
 
End of Question 10


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