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ThinkQuest
Webcytology was created for ThinkQuest 1999.
Quizzes

Acids, bases, and buffers

[go to this section in the Guide]
Chapter Two: The Chemistry of Biology


Question 1
 A base is a substance
   1.  which, when dissolved in water, releases OH- ions
2.  which, when dissolved in water, releases H+ ions
3.  which can combine with both OH- and H+ ions
4.  formed through only ionic bonds
 

Question 2
 Buffers are important in cells because they
   1.  tend to neutralize a solution if it is too acidic or basic
2.  provide the cell with necessary nutrients
3.  can help the cell capture prey by paralyzing it
4.  help to regulate the cell's temperature
 

Question 3
 The degree to which a solution is acidic or basic is measured on the
   1.  acid-base scale
2.  buffer tolerance scale
3.  ion release scale
4.  pH scale
 

Question 4
 On the scale above, the neutral value is
   1.  5
2.  7
3.  9
4.  11
 

Question 5
 On the scale above, acids must have values which are
   1.  less than 5
2.  less than 7
3.  greater than 9
4.  greater than 11
 


 
 

ThinkQuest Team #27819 - 27819@for.net
Team: Andrew Kallem, Josh Tauberer
Coaches: Ms. Acerra, Mr. Kwitkin