Biology (Mader), 10th Edition

Chapter 3: The Chemistry of Organic Molecules

Post-Test

1
Which of the following is considered a macromolecule?
A)Nucleic acid
B)Amino acid
C)Fatty acid
D)None of the above
2
Which of the following is NOT one of the classes of primary organic molecules?
A)Carbohydrates
B)Proteins
C)Salts
D)Nucleic acids
3
The process by which polymers are turned into monomers is called__________.
A)dehydration synthesis
B)ionization
C)hydrolysis
D)phagocytosis
4
The molecule that stores the information about the order of amino acids in a protein is _____.
A)ATP
B)RNA
C)DNA
5
The three-dimensional shape of a polypeptide is associated with its _____.
A)primary structure
B)secondary structure
C)tertiary structure
D)quaternary structure
6
The nucleotide that supplies energy for dehydration synthesis is _____.
A)adenosine triphosphate
B)guanine
C)thymine
D)cytosine
7
The two strands of DNA are held together by _____ between the purine and pyrimidine bases.
A)ionic bonds
B)hydrogen bonds
C)covalent bonds
8
The bond between two amino acids is ______.
A)formed by hydrolysis
B)an ionic bond
C)nonpolar
D)know as a peptide bond
9
Dieticians recommend that the majority of our dietary calories come from ______.
A)saturated fats
B)proteins
C)carbohydrates
D)cholesterol
10
After hydrolysis of a triglyceride, we would have _____.
A)many amino acids
B)different types of nucleotides
C)fatty acids and glycerol
D)monosaccharides and disaccharides
11
Which is the INCORRECT association between monomer and polymer?
A)monosaccharide - polysaccharide
B)nucleic acid - polypeptide
C)nucleotide - nucleic acid
D)amino acid - polypeptide
12
One would expect in the structure of a DNA molecule thymine would always be paired to ________.
A)uracil
B)adenine
C)guanine
D)cytosine
13
Each nucleotide's structure should have all of the following except:
A)Sugar
B)Nitrogenous base
C)Phosphate group
D)Amine group
14
The action of disrupting the three-dimensional shape of a protein is termed _______.
A)dehydration
B)denaturation
C)deamination
D)hydrolysis
15
Fats which have one or more double bonds within their fatty acid tails are labeled as _____ fats.
A)saturated
B)waxy
C)unsaturated
D)greasy
16
Polysaccharides, the complex carbohydrates, break down into reduced/simple sugars during which of the following processes?
A)Hydrolysis
B)Osmosis
C)Dehydration synthesis
D)Electron transport
17
All of the following are functional benefits of the body's fat stores except ________.
A)membrane structural material
B)enzyme action
C)insulation
D)a rich energy source
18
To which group of organic compounds do both DNA and RNA belong?
A)Amino acids
B)Fatty acids
C)Nucleic acids
D)None of these answers
19
Which statement best describe the behavior of carbon?
A)Carbon can share pairs of electrons with two other atoms.
B)Carbon can share pairs of electrons with as many as six other atoms.
C)Carbon can lose up to three atoms.
D)Carbon can share pairs of electrons with as many as four other atoms.
20
Complex carbohydrates are stored in animals in the form of
A)Cellulose
B)Glycerol
C)Glycogen
D)Lactose
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