Biochemistry Review
Concept Map: Complete the map using the following words
Macromolecule, monosaccharide, polysaccharide, energy, fats/triglycerides, protection and movement, genetic
information, carbohydrate, protein, nucleic acid, genetic information
1.
Are
2.
divided into these groups
Lipids
Give the body
5.
an example is
6.
Are divided into
8.
3.
which are
DNA
4.
which are important in
7.
which contain
9.
10.
Multiple Choice
11. ____________ speed up reactions.
a. macromolecules
b. enzymes
c. action sites
12. The basic elements of proteins are: ________.
a. fatty acid chains
b. simple sugars c. amino acids
13. Factors that control enzyme rates of reaction:
a. temperature
b. substrate availability
d. bonding
d. glycerol backbone
c. pH
d. all of the above
14. ________ are large molecules made of many monosaccharides.
a. water
b. starches
c. proteins
d. lipids
15. The bonding part of an enzyme substrate complex:
a. active site
b. ionic
c. glue
d. covalent
An Experiment
Two science students conducted a science experiment trying to determine what were the macromolecules in food.
They carried out 4 tests and the results showed that the food turned black- purple in the presences of iodine. When
it was heated with Benedicts solution it turned a nice orange color. It did not test positive for protein.
Fill out the following data table based on their lab.
MACROMOLECULE REAGENT
BEING TESTED
USED
FOR
16.
IODINE
COLOR
TURNED
18.
BENEDICTS
BLACKPURPLE
ORANGE
PROTEIN
20. BIRUET
21. BLUE
POSITIVE OR
NEGATIVE FOR
MACROMOLECULE
17. POSITVE
19. POSITVE
NEGATIVE
22. What macromolecule test did they not test for and how would they do it?
Fill in the blanks:
23. Proteins called _______ are important in speeding up metabolic reactions.
24. The ______________________ is the reactant that fits into an enzyme’s active site.
25. The four factors that affect enzyme facilitated rates of reaction
___, ______________________,
_____________________, ___________________________
26. The ___________________ is the END result of a chemical reaction (right side of equation).
27. Most enzymes, when subjected to very hot temperatures, will become
__.
28. The four macromolecules are
, ______________________,
______________________________, _________________________________
29. The “monomer” or subunits of a carbohydrate are called: ________________________.
30. The “monomer” or subunits of a protein are called: ____________________________.
31. The “monomer” or subunits of a lipid (triglyceride) are called:_____________________.
32. The “monomer” or subunits of a nucleic acid are called: _______________________.
33. The “function” or role of a carbohydrate is:_________________________________.
34. The “function” or role of a lipid is: ____________________________________.
35. Three “functions” or roles of proteins are: ______________________________,
____________________________________, __________________________________.
36. The “function” or role of a nucleic acid is: ________________________________.
37. List two examples of nucleic acids:_______________________, ______________________.
38. List two examples of carbohydrates: ________________________, ______________________.
39. List two examples of lipids: _____________________, ___________________.
40. List two examples of proteins: ________________________, _____________________.
Draw a picture
41. Draw and explain a picture that would show how an enzyme works. Label all necessary parts. (enzyme,
substrate, active site, lock and key, product)
Short Answer:
42. Because all living things need energy, all living things must have ways to store the energy for when they need
it. Where do humans get their energy? In what two ways do humans store energy? (4 points)
Matching: Write the letter of the correct definition next to the proper part of the scientific method.
A. Conclusion
B. Purpose/Question
C. Dependent Variable
D. Procedure
E. Independent Variable
F. Hypothesis
G. Control
_______43. the step-by step set of instructions for a lab
_______44. a question that states what you are trying to find in the lab
_______45. states if you supported your hypothesis and why or why you did or didn’t and also the explanation
_______46. the variable found on the “y” axis that indicates what is measured.
_______47. the variable found on the “x” axis that is the “treatment” in the lab, or what is given to the “experimental group”
_______48. the non-experimental group, or the group that DOES NOT receive the treatment; to validate the experiment
_______49. an if, then statement which predicts what will happen in the experiment