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Q: Why is no locating agent needed when inks or grass pigments are analysed by chromatography?
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Why is alcohol used when testing to see if chlorophyll is needed for photosynthesis?

Chlorophyll dissolves (becomes mobilized) in alcohol. Once mobilized, it can be separated from the other pigments by chromatography.


Why are pigments needed for photosynthesis?

Pigments are needed because they are useful to autotrophs and plants. Pigments are used to capture the sunlight's energy.


What items are necessary for photosynthesis?

Chlorophyll pigments are needed with enzymes. Water and CO2 needed as raw materials.


What sign is needed for locating fire equipment?

OSHA does not specify that signs are required.


Why are pigments such as chlorophyll needed?

Chlorophyll is needed in plants because without it they would be unable to produce their own food.


What tools were impportant to a limner?

They needed pigments, linseed oil, grindstone, muller (to make paint), a color box (to carry pigments in), and a paint brush.


Why are pigments such as chorophyll needed for photosynthesis?

Pigments like chlorophyll, capture light energy which is used for the first step of photosynthesis, the light dependent reaction.


What contains pigments needed for photosynthesis?

chlorophyll is needed for photosynthesis to occur. Its green pigment allows it to trap sunlight needed to split water molecules into oxygen and hydrogen.


What are needed so that a plant can undergo photosynthesis?

Mainly Photosynthetic pigments and organells,Enzymes and DNA


What may store water needed chemicals wastes pigments in a plant cell?

central vacuole


What may store water needed chemicals wastes pigments in plant cell?

central vacuole


What is the complex mixture of salts and pigments produced by the liver and stored in the gallbladder until needed called?

Bile.