PRACTICE MACROMOLECULE TEST
1. In humans and other organisms, which substance below acts as the main energy source?
a. Proteins
b. Lipids
c. Carbohydrates
d. Water
2. Amino acids are the building block (monomer) of ________________.
a. Proteins
b. Carbohydrates
c. Lipids
d. Nucleic Acids
3. An organism’s genetic information is stored in macromolecules known as _______________.
a. Proteins
b. Carbohydrates
c. Lipids
d. Nucleic Acids
4. Which of the following is not a true statement regarding macromolecules?
a. All macromolecules are monomers.
b. All macromolecules are polymers made up of smaller units.
c. All macromolecules are created by dehydration reactions.
d. All macromolecules contain carbon.
5. DNA and RNA are polymers made up of _______________ monomers.
a. Amino Acid
b. Monosaccharide
c. Fatty Acid
d. Nucleotide
6. Organisms are continuously creating and breaking down proteins for use in the body. Which of the following is not an
example of how proteins are used in living systems?
a. Enzymes in living systems are used to make chemical reactions occur more easily
b. Muscles for movement
c. Formation of structures like hair and nails
d. Protection against physical shock
7. Which of the following is not a component of a nucleotide?
a. Phosphate group
b. Glycerol and fatty acids
c. Five carbon (pentose) sugar
d. Nitrogenous base
8. Lipids are different from other macromolecules because they ________________.
a. Are hydrophobic and do not mix with water
b. Make up the cell walls of plants
c. Function as the enzymes.
d. Store and transmit genetic information.
9. The picture shows both types of fatty acids. Fatty acid chains that are unsaturated have:
a. An amino group
b. A double bond
c. An excess of protons
d. A carboxyl group
Make the best match of the example to the type of macromolecule.
A carbohydrate
B lipid
C nucleic acid D protein
10. _____a_______ glucose
15. _______b_____ triglyceride
11. ______a______ starch
16. ______d______ muscle
12. ______c______ DNA
17. _____b_______ phospholipid
13. ______a______ glycogen
18. _______a_____ cellulose
14. ______d______ hair and nails
Match the polymer with the correct monomer:
19. __d__ Carbohydrate
20.__b__ Nucleic Acid
21. __a__ Lipid
22. __c__ Protein
23. Proteins are made up of chains of
a. Monosaccharides
b. Nucleotides
c. Amino acids
d. Fatty acids
e. Steroids
24. How many different amino acids are there?
a. 1
b. 10
c. 20
d. hundreds
a. Fatty Acid
b. Nucleotide
c. Amino Acid
d. Monosaccharide
e. millions
25. What type of reaction links monomers together to form polymers?
a. Hydrolysis
b. Synthesis
c. Digestion
d. Exothermic
e. Exergonic
26. Which of the following is NOT an organic compound?
a. C6H12O6
b. H2O
c. CH4
d. C2H4O2
e. All of the above are organic compounds
27. Which of the following is not one of the four major groups of macromolecules found in living organisms?
a. glucose
b. carbohydrates
c. lipids
d. proteins
e. nucleic acids
28. Which of the following best summarizes the relationship between dehydration reactions and hydrolysis?
a. Dehydration reactions assemble polymers, and hydrolysis breaks down polymers.
b. Hydrolysis only occurs in the urinary system, and dehydration reactions only occur in the digestive tract.
c. Dehydration reactions can occur only after hydrolysis.
d. Hydrolysis creates monomers, and dehydration reactions break down polymers.
e. A and C are correct.
29. The building blocks of most biomolecules contain the element
a. carbon..
b. nitrogen
c. calcium.
d. sodium.
30. Polysaccharides are
a. carbohydrates.
b. lipids.
c. proteins
d. nucleic acids.
31. Plants store glucose in the form of
a. starch.
b. glycogen.
c. cellulose.
d. chitin.
32. Lipids are
a. soluble in water.
b. made of chains of amino acids.
c. linked together with peptide bonds.
d. used by the body for storing energy.
33. All of the following are examples of lipids except
a. oil..
b. starch.
c. steroids
d. candle wax.
34. The two types of nucleic acids are
a. RNA and ATP
b. DNA and RNA.
c. DNA and ATP
d. nucleotides and ATP.
35. DNA stores
a. fat..
b. carbohydrates
c. energy.
d. genetic information.
36. Macromolecule that can act as enzymes are ______________________.
A. carbohydrates
B. lipids
C. Nucleic acids
D. proteins
37. This molecule is ___________________
A. nucleotide
B. hemoglobin
C. glucose
D. a phospholipid
E. ATP
MATCH THE FOLLOWING
WITH THE APPROPRIATE
MOLECULE ON THE RIGHT
38. ____B____
POLYSACCHARIDES
39. ____C____ NUCLEIC
ACIDS
A.
B.
C.
40.. ___A_____ PROTEIN
MATCH EACH COMPONENT IN THE ENZYME CATALYZED REACTION BELOW WITH ITS NAME BY CHOOSING THE
LETTER ON THE DIAGRAM.
41.__E___ PRODUCTS
42.__C___ SUBSTRATE
43.__B___ ACTIVE SITE
44.___D__ ENZYME-SUBSTRATE COMPLEX
45.. __A___ ENZYME