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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
biological catalysts present
C
number of chromosomes in the cell
D
kind of sugar found on each chromosome
2) Which group of organic compounds includes the enzymes
A
nucleic acids
B
carbohydrates
C
proteins
D
starches
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
hormone
C
enzyme
D
inorganic molecule
4) Which cell organelle synthesizes enzymes
A
nucleus
B
cell membrane
C
vacuole
D
ribosomes
5) In order to survive, all organisms must carry out
A
the process of reproduction
B
autotrophic nutrition
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
fragile
C
reused
D
small molecules
7) The enzyme salivary amylase will act on starch but not on protein. This action illustrates that salivary amylase
A
is not reusable
B
lacks protein
C
is chemically specific
D
contains starch
8) Why might heating an enzyme slow the rate at which the rate occurs
A
it changes the substrate
B
the enzyme is specific
C
it kills the enzyme
D
it changes it shape
9) Enzymes influence chemical reactions in living systems by
A
affecting the rate at which reactions occur
B
becoming apart of the product after the 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
light
B
pH
C
temperature
D
enzyme concentration
*select an answer for all questions
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