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Brown and greeny-see through
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∙ 13y ago
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Result of starch test on variegated leaves?
the leaf that contains starch will turn blue/black if not it will stay the same colour
What does a garden snake turn into after it has been decomposed?
a marbey
Rahul picked up a dry leaf from the school garden and try doing iodine test he observed that the colour of iodine did not turn blue or black can you explain why?
because the leaf doesnot contain starch in it
What is the role of iodine in testing a leaf for starch?
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.
Why does leaf turn light green when boiled in ethanol?
add the leaf to boiling ethanol in a water bath for a few minutes (the boiling ethanol dissolves the chlorophyll and removes the green colour from the leaf - it turns white so it is easy to see the change in colour) wash with water to rehydrate and soften the leaf
What do you turn into when you die a angel or something else?
You turn into decomposed body parts, like dust and rot away.
What happens when you put a leaf in boiling alcohol?
it turns green because the chlorophyll is evaporated out
What happens to a leaf in salt water?
When you put a leaf in salt water, the leaf will start to turn brown in a few days. The leaf will start to turn brown in a mater of days.
What colour do you turn when you die and what colour is it?
Blue...
What does the presence of blue color means in variegated leaf experiment of photosynthesis?
By blue color I assume you mean an added dye that shows how some parts of the leaf can photosynthesize and others not. The easiest of these experiments is to place the leaf in boiling ethanol (alcohol) and when drained of colour spread out on a flat surface. Soak the leaf in iodine and the green parts will turn blue/black and the non green parts will stay the yellowish brown colour of iodine. The green parts contain starch (a more compact form of glucose) which makes iodine turn blue/black. The blue/black is what will show starch is present.
What colour does gold turn when in contact with acid?
Being inert and unreactive, pure gold does not react with any acid except aqua regia. Thus its colour does not alter.
Why does a person turn blue when choking?
because your oxygenated blood is what gives you colour and if you are being strangled or choking it cuts off the oxygen supply and you go the colour of your de-oxygenated blood.
