Science at a Distance

Biological Energy

This Bio-Module requires the use of the text book "Exploring Life" by Professor John Blamire.

Quick Check

Answers to this Quiz Biological Energy Topic Guide
Lecture Notes - Part 2 Lecture Notes - Part 3
Test Number BE-3025

Quick Questions

1) A car at the top of a hill is high in potential energy? (True / False)

2) A car rolling down a hill is obeying the Second Law of Thermodynamics? (True / False)

3) A bump in the road cannot prevent this process from taking place? (True / False)

4) The reacting molecules in a spontaneous chemical reaction start off with a very low amount of potential energy? (True / False)

5) The moment they are brought together, reacting molecules violently collide with one another and break apart? (True / False)

6) Chemical reactions take place when molecules bump into one another with sufficient force to break apart? (True / False)

7) The extra energy needed to start a spontaneous reaction is called the activation energy? (True / False)

8) At normal temperatures and pressures, reacting molecules need extra activation energy to get them moving fast enough to react with one another? (True / False)

9) Cells cannot carry out spontaneous reactions because they cannot supply activation energy? (True / False)

10) Catalysts prevent cells from lowering the activation energy barrier? (True / False)

11) Catalysts have large surface areas? (True / False)

12) Reacting molecules come together on the surface of catalysts? (True / False)

13) Cells use organic catalysts called enzymes? (True / False)

14) Most enzymes are proteins? (True / False)

15) Proteins are polymers of sugars? (True / False)

16) Proteins are polymers of amino acids? (True / False)

17) Proteins fold into complex three dimensional shapes? (True / False)

18) Amino acids are never part of the active site of an enzyme? (True / False)

19) Substrates are prevented from binding at the active site of an enzyme by the low level of activation energy? (True / False)

20) Product molecules are formed when the substrates react with one another? (True / False)

21) Binding the substrate at the active site lowers the activation energy barrier? (True / False)

22) Any substrate can become a product at the active site of any enzyme? (True / False)

23) Product molecules are bound at the active site and never leave? (True / False)

24) Heat has no effect on the activity of an enzyme? (True / False)

25) It is impossible for cells to convert simple materials into complex materials using enzymes? (True / False)

Answers to Quick Check Number BE-3025
Lecture Notes - Part 1 Lecture Notes - Part 2 Lecture Notes - Part 3
Biological Energy - Topic Guide Science at a Distance Science Center

Science at a Distance
© 1997, Professor John Blamire