Download Complete Biochem Review WS

LHS HONORS CHEM Biochemistry Review Worksheet Name______________________
1. Water molecules are _ _________ to other water molecules.
2. Water molecules attracting other water molecules is called _ _________
3. Cohesion of water molecules produces ____ _________ tension making water seem like
it has a "skin" on it. Surface tension enables some _ _________ to walk across the surface of
the water.
4. Water molecules attracting other types of molecules is called _ _________
5. Adhesion and cohesion together enable water molecules to move __
through narrow tubes against the force of gravity.
_________ __
6.What’s another name for fats? ____________________
7. What is an organic compound?
8. Besides carbon, name 3 other elements that make up most organic compounds.
9. Carbon dioxide, CO2, is NOT an organic compound. Explain why in complete sentences
10. Large carbon molecules are built from smaller, simpler molecules called _
_________
11. Large carbon molecules made of monomers are called
_________
12. What type of reaction links monomers to make polymers? _
_________
13. Dehydration synthesis reactions involve the removal of a molecule of _
14. What reaction is used to breakdown polymers?
removed? _________
_________
_________ Is water added or
15. Name the 4 classes of macromolecules& what 3 elements all of these contain.
16. In what ratio are hydrogen & oxygen atoms in carbohydrates? _________
17. What are double sugars called? _________ Name the process that forms them.
_________
18. What forms a polysaccharide?
19. What chemical reaction formed this large molecule? What reaction would be needed to
break these molecules
20. What are the 4 main elements making up proteins?
21. Sketch these and label an amino acid on a separate sheet of paper. Label the all groups.
22. What are the monomers of proteins called?
23. The main difference among amino acids is their ____ _______ group.
24. Differences in R-groups give different proteins different ______________.
25. Explain how does a dipeptide form
26. Long chains of amino acids are called ________ and these join together to make a ___
27. Explain how temperature effects the shape of protein
28. Most proteins act as catalysts or ___ ________ inside of cells.
29. The substance an enzyme is acting upon is called the ____ _______ and it must
_________ into a place called the active site on the enzyme.
30. When a substrate joins with an enzyme, what effect does this have on chemical bonding
of that substrate? Is the enzyme affected temporarily or permanently? Explain how is it
affected
31. Besides temperature, what else can effect how an enzyme works by changing the
enzyme's shape?
32. Most lipids are made of _________ acids.
33. Hydrophilic means water _________ __. Which end of a fatty acid is hydrophilic?
The nonpolar end of a fatty acid is said to be _________ or "water fearing".
34. What main part of a cell is made of phospholipids? _________
35. Draw, label (on a separate sheet of paper – draw and label) and explain what is meant
by a lipid bilayer
36. Give the name & abbreviation for 2 nucleic acids found in cells. _________
37. DNA and RNA are both examples of _________ made of linked monomers called
____________ The instructions in these molecules are used to make _________
38. Name the 3 parts to a nucleotide then draw and label on a separate sheet of paper..