Topic+4

Topic 4: Phillip M.


 * __Carbohydrates__**-Any of a group of organic compounds that includes sugars, starches, celluloses, and gums and serves as a major energy source in the human body

__**WEBSITE SOURCE**__: [|**http://www.answers.com/topic/carbohydrate**]


 * __EXPLAINATION__:** Carbohydrates are organic compounds that serve as major source of energy for our bodies.

Megan G. __Example 1.)__ Simple carbohydrates are in any foods that contain sugar. One example is White table sugar. Carbohydrates are in the table sugar that we eat every day. -[] __Example 2.)__ Simple carbohydrates are monosaccharides and disaccharides. Examples of simple sugars are glucose, fructose galactose and sucrose, lactose and corn syrup. A real example of carbohydrates is in potatoes, rice and bread. - []

Katelyn B.

The following pictures were taken during the sugars lab. They are of four different solutions containing unknown sugars or possibly nothing at all.

---Benedicts Solution Test---Iodine Test

Benedicts Solution after acid---



If sucrose is present it will be by itself. Use the reference table and the pictures to identify the contents of the four unknowns.

Tanner B.
 * ** Sugar ** || ** Positive Results ** || || ** Unknown Solutions ** || ** Contents ** ||
 * ** glucose ** || Benedicts solution turns from blue to orange after heating || || ** Solution A ** || Glucose ||
 * ** Starch ** || Iodine turns from golden brown to black || || ** Solution B ** || Iodine, glucose ||
 * ** Sucrose ** || Benedicts solution turns from blue to orange **//only after reacting with acid//** || || ** Solution C ** || No known sugars. ||
 * There are no other interactions between sugars and indicators. || || ** Solution D ** || Glucose, sucrose ||