0
Add your answer:
Earn +20 pts
What will happen to a leaf when you put iodine solution into it?
If iodine solution is added to a leaf, it will turn blue-black in color. This is due to the presence of starch in the leaf which reacts with iodine to produce this color change.
What effect the iodine solution have on a leaf?
Iodine solution can test for the presence of starch in a leaf. When iodine solution is applied to a leaf, it will turn blue-black in areas where starch is present. This is because iodine reacts with starch to form a bluish-black complex.
Why didn't the margins of the leaf turn blue black after the use of the iodine solution?
The margins of the leaf did not turn blue-black because there was no starch present in that area. The iodine solution reacts with starch to produce a blue-black color. If the margins did not turn blue-black, it suggests that there was no starch in that part of the leaf.
What did you see on the leaf in the test tube when testing for starch?
If starch is present on the leaf, it will turn blue-black in color when the iodine solution is added. Otherwise, the leaf will remain its natural color.
What colour should the leaf turn when iodine is added?
The leaf should turn blue-black when iodine is added, indicating the presence of starch.
What will happen to a leaf when you put iodine solution into it?
If iodine solution is added to a leaf, it will turn blue-black in color. This is due to the presence of starch in the leaf which reacts with iodine to produce this color change.
What effect the iodine solution have on a leaf?
Iodine solution can test for the presence of starch in a leaf. When iodine solution is applied to a leaf, it will turn blue-black in areas where starch is present. This is because iodine reacts with starch to form a bluish-black complex.
Why didn't the margins of the leaf turn blue black after the use of the iodine solution?
The margins of the leaf did not turn blue-black because there was no starch present in that area. The iodine solution reacts with starch to produce a blue-black color. If the margins did not turn blue-black, it suggests that there was no starch in that part of the leaf.
What is the answer A leaf was tested for starch the iodine solution stayed orange what does that tell you about the leaf?
If the iodine solution stays orange after testing a leaf for starch, it indicates that the leaf does not contain starch. Starch would typically turn the iodine solution blue-black in color. Therefore, the orange color suggests that the leaf did not produce a significant amount of starch through photosynthesis.
What did you see on the leaf in the test tube when testing for starch?
If starch is present on the leaf, it will turn blue-black in color when the iodine solution is added. Otherwise, the leaf will remain its natural color.
What experiment can be carried out to show the formation of starch in a green plant?
You can carry out a starch test using iodine solution. First, place a green leaf in boiling water to soften it, then place it in alcohol to remove chlorophyll. Dip the decolorized leaf in iodine solution; if starch is present, the leaf will turn blue-black. This experiment demonstrates the formation of starch through photosynthesis in green plants.
What colour should the leaf turn when iodine is added?
The leaf should turn blue-black when iodine is added, indicating the presence of starch.
Test for starch in a leave by photosynthesis?
Test for Starch 1. Heat some water to boiling point in a beaker then turn out the Bunsen flame. 2. Use forceps to dip a leaf in the hot water for about 30 seconds. This kills the cytoplasm, dentures the enzymes and makes the leaf more permeable to iodine solution. 3. Push the leaf to the bottom of a test tube and cover it with alcohol (ethanol). Place the tube in the hot water. The alcohol will boil and dissolve out most of the chlorophyll. This makes colour changes with iodine easier to see. 4. Pour the green alcohol into a spare beaker, remove the leaf and dip it once into the hot water to soften it. 5. Spread the decolourized leaf flat on a white tile and drop iodine solution onto it. The parts containing starch will turn blue; parts without starch will stain brown or yellow with iodine
A chemical solution used to test starch is?
Iodine solution is commonly used to test for the presence of starch. When iodine solution is added to a sample containing starch, it will turn blue-black in color if starch is present.
What is the function of iodine?
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.
What is the color of the leaf at the end of the experiment that test for starch?
The leaf will turn dark blue or black at the end of the experiment if it tests positive for starch.
What color does a iodine turn when there is no starch in a leaf?
Iodine turns a yellow-brown color when there is no starch present in a leaf. This color change indicates the absence of starch, which is detected by the iodine as it interacts with the leaf's compounds.
