Testing a Leaf for Starch
Authored by Susan Stokesberry
Science
5th - 12th Grade
NGSS covered
Used 504+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a variegated leaf?
One that has chlorophyll in some bits and not in others
A random leaf
A leaf that has chlorophyll in all parts of it
Tags
NGSS.MS-LS1-6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we boil the leaf?
To keep it warm
To denature the enzymes and so stop photosynthesis
To make photosynthesis go faster
Tags
NGSS.MS-LS1-6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we turn off the bunsen flame before adding ethanol?
Not sure
To save on gas
Because ethanol is extremely flammable
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is chlorophyll soluble in?
Ethanol
Water
Don't Know
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What colour does the leaf turn after being in ethanol?
It stays green
It turns blue
It turns white
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To show that photosynthesis has occurred we test for starch. Why?
Starch is a product of photosynthesis
Not sure
Glucose is a product of photosynthesis and is stored in the plant cells as starch
Tags
NGSS.MS-LS1-6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do we use to test for starch?
Fluorine solution
Chlorine solution
Iodine solution
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