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Multiple Choice Quiz
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1

Which of the following statements is/are true?
A)All carbon atom bonding sites are at equal distances from one another.
B)Organic compounds may be natural or synthetic.
C)Some atoms may be bonded to another atom more than once.
D)All of the above.
2

Which series of atoms would most commonly be found in an organic molecule?
A)Carbon, hydrogen, oxygen, nitrogen
B)Hydrogen, oxygen, nitrogen, sulfur
C)Carbon, phosphorus, sodium, oxygen
D)Carbon, hydrogen, nitrogen, sodium
3

Molecules that have the same empirical formula but different structural formulas are called
A)Isotopes.
B)Isomers.
C)Isobars.
D)None of the above.
4

Specific combinations of atoms attached to the carbon skeleton are called
A)Enantomers.
B)Funtional groups.
C)Carbonyl groups.
D)Carboxylic groups.
5

The empirical formula for a pentose would be
A)C6H12O6
B)C6H6O12
C)C5H10O5
D)C5H12O5
6

In a dehydration synthesis reaction
A)Two molecules are joined by the addition of a water molecule.
B)Two molecules are joined as a water molecule is removed.
C)Two molecules are separated and a water molecule is added to each one.
D)Two molecules are separated as a water molecule is removed from the complex.
7

Which of the following series of sugars is made up entirely of complex carbohydrates?
A)Starch, glycogen, cellulose
B)Starch, sucrose, lactose
C)Glycogen, glucose, galactose
D)Cellulose, glucose, fructose
8

A triglyceride is make up of
A)One glycerol and three fatty acids.
B)Three glycerols and one fatty acid.
C)One glycerol and one fatty acid.
D)Three glycerols and three fatty acids.
9

A saturated fatty acid will have __________ double bonds between various carbon atoms.
A)Zero
B)One
C)Two
D)Three or more
10

The chief characteristic of the steroid molecule is the
A)Phospholipid side-chains.
B)Double carbon atoms on both sides.
C)Interlocking carbon rings.
D)Open-ended ring structures.
11

Which statement(s) about cholesterol is/are true?
A)The human body manufactures some cholesterol.
B)Cholesterol is necessary for the production of steroids and vitamin D.
C)Cholesterol is found in the animal cell membrane as well as in the bile (produced by the liver).
D)All of the above.
12

Proteins are made up of __________ that are joined together by __________.
A)Amino acids / peptide bonds
B)Amino acids / polypeptide chains
C)Amino groups / "R-groups"
D)Carboxylic groups / peptide bonds
13

The way an amino acid chain folds over on itself is called its __________ structure.
A)Primary
B)Secondary
C)Tertiary
D)Quaternary
14

If the primary function of a protein is to maintain the shape of the cell, that protein is known as a(n) __________ protein.
A)Regulatory
B)Structural
C)Denatured
D)Endotropic
15

Which three molecules are bonded together to form a nucleotide?
A)Phosphate, sugar, protein
B)Sugar, nitrogen base, carbohydrate
C)Phosphate, sugar, nitrogen base
D)Liposaccharide, phosphate, nitrogen base
16

Nucleotides are the functional monomers of
A)DNA.
B)RNA.
C)Energy molecules such as ATP.
D)All of the above.
17

How many atoms of hydrogen are able to bond with one atom of carbon?
A)only one
B)two atoms of hydrogen
C)three hydrogen atoms
D)four atoms of hydrogen
18

An atom of nitrogen has a specific number of bondable electrons based on:
A)their placement in orbitals.
B)the number of neutrons in the nucleus.
C)the size of the molecule.
D)atomic mass of the atom.
19

Which of the following is organic?
A)sulfuric acid
B)copper sulfate
C)saltwater solution
D)lipid
20

Methyl, alcohol, and amino are all examples:
A)functional groups.
B)carbon skeletons.
C)side chains of polysaccharides.
D)places where hydrolysis can occur.
21

Q:- COOH is a functional group known as:
A)phosphate.
B)carbonyl group.
C)carboxylic acid group.
D)amino.
22

Hydrolysis forms:
A)small molecules from large ones.
B)water as a waste product.
C)rearranged molecules of the same size.
D)condensed water molecules.
23

An enzyme's function is to:
A)be a primary energy source.
B)act as an organic catalyst.
C)store energy for long term use.
D)form high energy bonds.
24

Glucose (C6H12O6), galactose (C6H12O6), and fructose (C6H12O6) are
A)the building blocks of complex carbohydrates.
B)isomers.
C)hexose sugars.
D)all of the above.
25

Which one of the following is NOT a lipid?
A)neutral fat
B)phospholipid
C)polypeptide
D)testosterone
26

Which of the following is NOT a function of neutral fat?
A)insulation
B)shock absorption
C)energy storage
D)regulate rates of chemical reactions
27

Which is the monomer for a nucleic acid?
A)amino acid
B)nucleotide
C)fatty acid
D)monosaccharide
28

Which of the following is a polymer?
A)starch
B)protein
C)DNA
D)all of the above
29

C12H22O11 + H2O → C6H12O6 + C6H12O6

The reaction above is an example of
A)dehydration synthesis.
B)the synthesis of a fat molecule.
C)hydrolysis.
D)the synthesis of a disaccharide.
30

Peptide bonds
A)result from dehydration synthesis reactions.
B)form between amino acids.
C)occur when a carboxylic acid group reacts with an amino group.
D)all of the above.
31

Which association is correct?
A)Nucleic Acid:RNA Protein:enzymes Lipid:insulin Carbohydrate:glucose
B)Nucleic Acid:DNA Protein:insulin Lipid:testosterone Carbohydrate:cellulose
C)Nucleic Acid:Enzymes Protein:insulin Lipid:testosterone Carbohydrate:glucose
D)Nucleic Acid:RNA Protein:enzymes Lipid:cellulose Carbohydrate:glycerol







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