test whether chlorophyll is neccessary for photosynthesis Flashcards
1
Q
what is the meaning of variegated leaves?
A
contains green and non-green parts
2
Q
1.
A
destarch a plant with variegated leaves by placing it in the dark for 2 days
3
Q
2.
A
after 2 days, expose the plant to strong sunlight for 1-2 hours
4
Q
3.
A
remove one leaf and make a drawing of the distribution of the green and non-green parts
-parts that contain chlorophyll and those that don’t
5
Q
4.
A
decolourise the leaf by putting it into a boiling tube containing 3cm3 of ethanol and put it into a water bath of 50cm3
MENTION THE SAFETY PRECAUTIONS
6
Q
5.
A
test it for starch
7
Q
6.
A
make another drawing of the leaf to show the distribution of blue-black colour and compare the drawings
