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Multiple Choice Quiz
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1
What is the collective term for all of the chemical processes occurring within a cell?
A)anabolism
B)catabolism
C)metabolism
D)syntheses
2
Synthesis is a term that could be used synonymously with _____.
A)metabolism
B)anabolism
C)catabolism
D)dehydration
3
Which of the following is an example of catabolism?
A)hydration
B)hydrolysis
C)protein synthesis
D)peptide synthesis
4
A _____ bond is formed when an amino group of one amino acid joins the acid group of another.
A)carbohydrate
B)peptide
C)hydrated
D)fat
5
A protein with many amino acids is called a _____.
A)peptide
B)dipeptide
C)polypeptide
D)polymer
6
The chemical process of _____ is involved in the digestion of a compound such as a disaccharide.
A)dehydration
B)hydrolysis
C)synthesis
D)anabolism
7
Which of the following factors would increase the rate of a reaction the most?
A)temperature
B)concentration
C)type of substrate
D)enzymes
8
The molecule that is acted upon by an enzyme is a__________.
A)reactant
B)product
C)substrate
D)catalyst
9
The _____ will decompose hydrogen peroxide.
A)enzyme catalase
B)presence of any enzyme
C)enzyme hydrolase
D)mitochondria
10
The following belong together except which one?
A)liver
B)kidney
C)catalase
D)hydrolysis
11
Penicillin acts to render bacterial cells nonviable because it damages their _____.
A)proteins
B)DNA
C)cell walls
D)cell membranes
12
Which of the following will catalyze the breakdown of starches?
A)protease
B)amylase
C)lipase
D)sucrase
13
Which of these is an enzyme name?
A)amylose
B)sucrose
C)lipase
D)protein
14
The substrate for lipase would be _____.
A)fats
B)sucrose
C)a protein
D)maltose
15
The following terms belong together except which one?
A)enzyme
B)vitamin
C)glucose
D)mineral
16
What are the most common coenzyme molecules used to activate an enzyme?
A)minerals
B)vitamins
C)hormones
D)proteins
17
The following factors will decrease the function of most enzymes except which one?
A)radiation
B)50 degrees C
C)pH of 7.9
D)pH of 7.4
18
Most reactions that produce energy in a cell utilize _____ as the main reaction type.
A)catalysis
B)oxidation
C)reduction
D)hydrolysis
19
Energy metabolism is an expression that can be used to mean the same as _____.
A)oxidation
B)anabolism
C)cellular respiration
D)cellular metabolism
20
If glucose were oxidized completely, the reactions would yield a total of _____ ATP molecules.
A)2
B)36
C)38
D)6
21
Respiration yields _____ as a gaseous waste product.
A)hydrogen
B)water
C)carbon dioxide
D)oxygen
22
Of the following, the molecule with the greatest amount of usable cell energy is _____.
A)ADP
B)glucose
C)GTP
D)ATP
23
Which part of ATP contains the most energy?
A)ADP
B)ribose
C)adenine base
D)phosphate
24
Carbohydrates in the diet are changed into glucose by a process of _____.
A)anabolism
B)hydrolysis
C)catalysis
D)glycolysis
25
The following are true of glycolysis except which statement?
A)the end product is pyruvic acid
B)occurs outside of the mitochondria
C)requires oxygen
D)is anaerobic
26
How many net ATP molecules result from glycolysis?
A)1
B)2
C)6
D)38
27
Before entering the Kreb cycle, pyruvic acid must be converted to a/an _____ molecule.
A)glucose
B)citric acid
C)lactic acid
D)acetyl coenzyme A
28
The following are end products of the Kreb cycle except which one?
A)ATP
B)water
C)citric acid
D)carbon dioxide
29
Which of these is the last to be produced in glycolysis?
A)phosphoenolpyruvic acid
B)glyceraldehyde-3-phosphate
C)1,3-diphosphoglyceric acid
D)3-phosphoglyceric acid
30
In the Kreb cycle, the acetyl coenzyme A combines with _____ to form citric acid.
A)glucose
B)pyruvic acid
C)oxaloacetic acid
D)pantothenic acid
31
Which vitamin is essential to the formation of acetyl coenzyme A?
A)B12
B)B6
C)pantothenic acid
D)niacin
32
Which of the following results in the greatest amount of ATP?
A)glycolysis
B)citric acid cycle
C)electron transport
D)acetyl coenzyme A synthesis
33
The following are true of NAD and FAD except which statement?
A)are vitamin derivatives
B)contain nucleotides
C)transport hydrogen
D)are in the Kreb cycle
34
In the cytochrome oxidase system, the final acceptor of a pair of electrons is _____.
A)cytochrome
B)water
C)ATP
D)oxygen
35
What is oxidized during oxidative phosphorylation?
A)carbon dioxide
B)hydrogen
C)glucose
D)citric acid
36
Excess glucose or its end products can be stored as _____ if they are not completely oxidized.
A)citrate
B)glycogen
C)triglycerides
D)pyruvate
37
The presence of _____ is an indication that glucose has been completely oxidized.
A)water
B)ATP
C)carbon dioxide
D)glycogen polymers
38
The most common form of a lipid that is used or burned for energy is called a _____.
A)cholesterol
B)fat
C)oil
D)triglyceride
39
The metabolically most active organ in the body probably is the _____.
A)brain
B)liver
C)skeletal muscle
D)heart
40
Glycerol can enter the Kreb cycle if it is converted to _____.
A)water
B)glucose
C)acetyl coenzyme A
D)a fatty acid form
41
The potentially harmful chemicals resulting from lipid metabolism are the _____.
A)fatty acids
B)cholesterol derivatives
C)ketones
D)acetyl coenzyme A fragments
42
Ketones are molecules that result from _____ metabolism.
A)fat
B)protein
C)carbohydrate
D)nucleic acid
43
What is the one limiting factor that prevents humans from using lipids for energy rather than carbohydrates?
A)fats are too large
B)insufficient vitamins available
C)not enough oxygen available
D)lipids form ketones
44
The most significant function of proteins is to produce _____.
A)amino acids
B)energy
C)cell structures
D)DNA molecules
45
Which molecule contains the genetic code?
A)RNA
B)proteins
C)DNA
D)adenine bases
46
A gene instructs an organism to produce a/an _____.
A)observable trait
B)protein
C)DNA sequence
D)dividing cell population
47
The fundamental units found in DNA, RNA and ATP are _____.
A)proteins
B)nucleic acids
C)nucleotides
D)nitrogenous bases
48
The double helix structure is part of the _____ molecule.
A)ribonucleic acid
B)DNA
C)protein
D)glycogen
49
One strand of DNA is connected to the other by the _____.
A)phosphate groups
B)pentose sugars
C)carbon chains
D)nitrogen bases
50
The following are DNA bases except which one?
A)adenine
B)thymine
C)uracil
D)guanine
51
The base thymine can pair with the base _____.
A)thymine
B)adenine
C)cytosine
D)guanine
52
The genetic code is transferred from DNA to _____.
A)mRNA
B)tRNA
C)rRNA
D)proteins
53
The following belong together except which one?
A)ribose
B)adenine
C)uracil
D)thymine
54
What is a complimentary mRNA sequence for DNA A,T,C,C,G?
A)TAGGC
B)UAGGC
C)CGUUA
D)TACCG
55
A genetic code is a sequence of _____.
A)three bases
B)three amino acids
C)six bases
D)tRNA
56
A set of nucleotides called the _____ in RNA recognizes the nucleotide genetic codes of DNA.
A)anti-code
B)cistron
C)codon
D)anti-codon
57
What is the anticodon for DNA base sequence ATG?
A)TAG
B)UAG
C)UAC
D)AUG
58
The amino acids are transported to the place where they will be assembled into proteins by _____.
A)mRNA
B)tRNA
C)rRNA
D)proteins







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