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