Question

which part of the leaf will turn blue black when iodine solution is added​

Answer 1

Answer:

I hope it will help you

and PLEAZE....MARK IT AS THE BRAINLIEST ANSWER!? ?

 

I hope it will help you

and PLEAZE....MARK IT AS THE BRAINLIEST ANSWER!? ?

 

Explanation:

The hot water kills the leaf and the alcohol breaks down the chlorophyll, taking the green color out of the leaf. When you put iodine on the leaves, one of them will turn blue-black and the other will be a reddish-brown. Iodine is an indicator that turns blue-black in the presence of starch.

Answer 2

The part of leaf that contains starch will turn blue black.

Explanation:

• The iodine test is done to determine the presence of starch in a solution or cell.
• The iodine reacts with the starch to give blue black color which is indicative of formation of starch-iodine complex.
• The leaves are the sources of starch due to process of photosynthesis.
• The photosynthesis occurs in the leaves during the day when the chlorophyll pigment absorbs the light energy from the sun to produce food in the form of carbohydrate.
• In the iodine solution when pored over the surface of the leaves some parts of the leaves will look blue black as these parts will have starch in them as a product of photosynthesis.
• This technique also useful to determine on which side of the leaf the photosynthesis takes place.

Learn more about iodine:

What turns iodine into tincture of iodine?: https://brainly.in/question/6303285