
8.2 Enzymes
Authored by Mohamed M.Elhassan
Science, Biology
6th - 9th Grade
Used 24+ times

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27 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Life could not exist without enzymes.
True
False
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Catalysts are chemicals that ………………………chemical reactions.
speed up
slow down
do nothing to the
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biological catalysts made from protein.
Enzymes
Vitamins.
Viruses.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biological catalysts mean catalysts made by .......................
living things.
non-living things
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
We can’t see the molecules in food but we can use chemicals to detect them.
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Iodine turns …………………….when it mixes with starch.
dark blue.
green.
pink.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If warm saliva is added to starch and left for a few minutes, …………………..colour forms with iodine.
no blue.
only a brown yellow colour of the iodine
a blue.
green
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