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True/False Quiz



 This activity contains 10 questions.

Question 1
1
Open Hint for Question 1 in a new window		 Cells often store energy in the form of electrochemical gradients.
   
 
End of Question 1


Question 2
2
Open Hint for Question 2 in a new window		 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
Open Hint for Question 3 in a new window		 The neutral pH of pure water is always 7.00.
   
 
End of Question 3


Question 4
4
Open Hint for Question 4 in a new window		 Enzymes are catalysts that speed up the rate of chemical reactions by reducing the energy of activation.
   
 
End of Question 4


Question 5
5
Open Hint for Question 5 in a new window		 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
Open Hint for Question 6 in a new window		 Cells can store energy in the form of reducing equivalents, such as NADH.
   
 
End of Question 6


Question 7
7
Open Hint for Question 7 in a new window		 A protein loses its functional effectiveness when it is denatured, i.e. when its 3-dimensional structure becomes unfolded.
   
 
End of Question 7


Question 8
8
Open Hint for Question 8 in a new window		 Cells use glycolysis only under anaerobic conditions, and the Krebs cycle when oxygen is available.
   
 
End of Question 8


Question 9
9
Open Hint for Question 9 in a new window		 Cholesterol is a normal component of many cellular membranes and is essential for the synthesis of mammalian steroid hormones.
   
 
End of Question 9


Question 10
10
Open Hint for Question 10 in a new window		 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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