Carbs and Lipids

October 5, 2005 at 12:45 am #2079

Participant

Hello. My name is Jessica and I’m a sophomore in high school. I’m currently working on a Biology worksheet and I am so lost and had no where else to turn. I need a bit of assistance with the answering of one questions.

“Suggest one or two simple experiments to determine whether a solid white substance is a lipid or a carbohydrate. What evidence would you need to support each hypothesis? ”

If anyone could assist me with answering this question it would be greatly appreciated.

Yes, I do have an online book, but it’s not nearly as helpful as the actual textbook and alot less weight in my backpack, so I left it at school.

October 5, 2005 at 2:34 am #30419

Fried Zygote Sandwich

Participant

You could try dissolving it in water? If it dissolves I’d figure it’d be a carb, if it doesn’t, a lipid?

October 5, 2005 at 3:45 am #30422

mith

Participant

cellulose wouldn’t dissolve even though it’s a carb(well very slowly anyway). Have you tried researching hydrophillic and hydrophobic substances?

October 5, 2005 at 9:19 am #30437

Mjhavok

Participant

I think carbohydrates are water soluble and lipids are not. This may help you in designing a experiment.

October 5, 2005 at 3:56 pm #30463

Poison

Participant

Not all of the carbs.

October 6, 2005 at 4:19 am #30492

baikuza

Participant

when i’m on high school
we test it’s lipid/ fat(acctually) by put it on a paper then look at it. if the paper become transparent after the drying process, keep it under the sun till H2O- if it available on the object, the paper may says to u that it is kind of lipid/ fat.

if u not found it on the paper may be it is not lipid/fat.

quite simple? 😉

_________
awake from the day
knowing u are tlaking together
i ust wanna to join the fun

October 6, 2005 at 11:35 am #30500

param124

Participant

carbs….lipids…test ..simple…u can always use the common test for lipids which is sudan3 test givin u a bright red oil layer when it settles….thats for lipids…

for carbs..use the common onces…like bennedict for reducin sugars or iodine…test for..starch…etc…

October 7, 2005 at 9:42 am #30557

baikuza

Participant

oh.. sorry if u do not need that. 😯

October 7, 2005 at 12:10 pm #30564

victor

Participant

how about a little bit complicated things?? try to put these igredients to the specimen..if it’s lipid, then these igredients will solved. they’re Retinol, calciopherol, and tocopherol… 😆

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