nothing happen in my experiment
because the leaf is non polar or Because the leaf is coated in lipid molecules
Starch is produced by leaves during Photosynthesis, therefore if the leaf has not been exposed to light then it will not contain starch, and so when tested the Iodine will stay Yellow/Brown. Consequently if the leaf has been left in the light Photosynthesis will have taken place and when tested the Iodine will go Blue/Black showing that Starch is present. Hope this helps :)
Yes, the leaf is considered a plant organ.
Stomata on the underside of the leaf control the passage of gases into and out of the leaf.
Destarching a leaf is a method used in an experiment to prove that there is starch exsisting within the leaf, Destarching a leaf is also a preparation used before the experiment, to remove all starches within the leaf-NR
experiment to show the presence of in a leaf
the color of the leaf become brown-black after the iodine solution was added.
Just by drawing it. Look up images of a marijuana leaf and copy what you see.
the oxygen in the leaf makes the leaf die so it cant breath just like us i know this because i have done an experiment on this.
Cold water is used to stop the process of photosynthesis in a leaf. This helps to fix any starch that has been produced in the leaf during the experiment. The cold water also makes the leaf more brittle, making it easier to handle during further steps of the experiment.
leaf fall, or fall
When a leaf is boiled in warm water, the heat can cause the cell membranes in the leaf to rupture. This can result in the loss of color pigments in the leaf, causing it to turn pale or translucent. Additionally, the proteins in the leaf may denature due to the heat, leading to changes in the leaf's structure and texture.
The gold leaf experiment was a famous experiment conducted by Ernest Rutherford in 1909 to study the structure of the atom. He bombarded a thin piece of gold foil with alpha particles and observed that some particles were deflected, indicating that atoms have a dense, positively charged nucleus at their center. This experiment led to the development of the nuclear model of the atom.
a leaf (plant) should be destarched before photosynthesis investigations because the starch already present in the plant may mislead the result . hence if a destarched plant is used for the experiment then the amount of starch present at the time of the experiment will be nil and affter the experiment is compleded the amount of starch present in the leaves woul give the rate of photodynthesis as starch id prepared during photosynthesis
what type of leaf?
Iodine added directly to a leaf in an experiment can be used to test for the presence of starch. If the leaf turns blue-black, it indicates that starch is present in the leaf, as iodine reacts with starch molecules to produce this color change. This is commonly used in biology experiments to show the photosynthesis process in plants.