The function of starch in the leaf is to provide energy for the cell for the different functions. When the starch in the plant cells degrades, carbon is released so that it can be utilized in the production of sucrose.
When the plant is kept in sunlight the starch is formed in leaf.
Use iodine to test a leaf for starch | Plant Physiology | Biology
then starch is not present...
Starch, I think, because iodine solution is the test for starch.
starch grains store food for plant cell .the starch grain just re-produces on and on. but like the Amyloplast, amyloplast gives away starch grain in its cell.
Because the leaf structure do not have the ability to store the starch molecules
Because the leaf structure do not have the ability to store the starch molecules
When the plant is kept in sunlight the starch is formed in leaf.
Because the leaf structure do not have the ability to store the starch molecules
To determine the location of starch in a leaf, one can examine it under the microscope and apply one small drop of iodine to the leaf. The parts of the leaf that turn purple contain starch.
The leaf turns brittle during the testing the leaf for starch because the ethanol extracts the all water content from the leaf.
Iodine solution is commonly used to test for starch. If starch is present in a substance (e.g. a leaf which undergone photosynthesis) then the iodien solution would turn blue black. If no starch is present then it remains as light brown.
no
Chlorophyll has a function of converting starch into glucose and other simpler plant products.Thats why we have to remove cholorphyll before starting a test for starch.
Use iodine to test a leaf for starch | Plant Physiology | Biology
The starch in a variegated Coleus leaf is stored in the pigmented parts of the leaf. Coleus is a flowering plant is usually considered an ornamental plant because of its color.
A hot bath of ethanol decolorizes the leaf by washing out the chlorophyll. If the leaf is not decolorized, you cannot see the blue-black stain that results from the iodine reacting with the starch.