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