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Pre-Test
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1
The proteins that control the reactions of metabolism are called
A)amino acids
B)catalase
C)enzymes
D)substrates
2
Choose the true statement regarding anabolism.
A)Anabolism uses energy to assemble large molecules from smaller molecules.
B)Anabolism often utilizes hydrolysis.
C)Anabolism encompasses reactions that store and release energy.
D)Anabolism requires the presence of water to occur.
3
A by-product of dehydration synthesis is
A)carbon dioxide
B)oxygen
C)water
D)amino acids
4
Enzymes are needed to promote metabolic reactions in the body because
A)there is inadequate oxygen to promote the chemical reactions
B)the temperature in cells is not high enough to promote the increase in chemical reaction rates
C)the chemical reactions will never take place without them
D)they provide essential molecules used in chemical reactions
5
Very small quantities of enzymes are needed because
A)they are very large protein molecules and perform multiple reactions simultaneously
B)only a few types of reactions in a cell require enzymes
C)very rapid production of enzymes is possible when they are needed
D)they are not consumed in the metabolic reaction they facilitate and are recycled.
6
All of the following can interfere with an enzyme's ability to function except
A)high temperatures
B)a change in the shape of the active site
C)reduction in the availability of a cofactor
D)the interference by a coenzyme
7
The form of energy most often used by the body’s metabolic processes is
A)chemical
B)light
C)mechanical
D)electrical
8
The first stage of cellular respiration is ___________ and occurs in the __________________.
A)aerobic, cytosol
B)anaerobic, nucleus
C)aerobic, mitochondria
D)anaerobic, cytosol
9
The second phase of cellular respiration is __________ and occurs in the ____________.
A)aerobic, mitochondria
B)aerobic, cytosol
C)anaerobic, nucleus
D)anaerobic, mitochondria
10
The final products of glucose oxidation are all of the following except
A)water
B)carbon dioxide
C)energy
D)oxygen





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