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Enzymes
Test Description: Quiz on Enzymes
Instructions: Answer all questions to get your test result.
1) In the body of a human, the types of chemical activities occuring within cells are most dependent on the
A
number of chromosomes in the cell
B
biological catalysts present
C
size of the cell
D
kind of sugar found on each chromosome
2) Which group of organic compounds includes the enzymes
A
nucleic acids
B
starches
C
proteins
D
carbohydrates
3) Experiments revealed the following information— It can be broken down into amino acids. — It can break down proteins into amino This molecule is most likely
A
antigen
B
inorganic molecule
C
hormone
D
enzyme
4) Which cell organelle synthesizes enzymes
A
vacuole
B
cell membrane
C
ribosomes
D
nucleus
5) In order to survive, all organisms must carry out
A
autotrophic nutrition
B
the process of reproduction
C
enzyme-controlled reactions
D
heterotrophic nutrition
6) Only small amounts of enzymes are required for reactions within cells because enzymes are
A
constantly synthesized
B
small molecules
C
reused
D
fragile
7) The enzyme salivary amylase will act on starch but not on protein. This action illustrates that salivary amylase
A
is chemically specific
B
lacks protein
C
contains starch
D
is not reusable
8) Why might heating an enzyme slow the rate at which the rate occurs
A
it changes the substrate
B
it kills the enzyme
C
it changes it shape
D
the enzyme is specific
9) Enzymes influence chemical reactions in living systems by
A
affecting the rate at which reactions occur
B
absorbing water during synthesis and digestion
C
becoming apart of the product after the reactions occur
D
combining with atmospheric gases
10) All of these affect the rate of enzyme reaction except
A
light
B
enzyme concentration
C
pH
D
temperature
*select an answer for all questions
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