Topic+4b

Topic 4b Matt D Any group of organic compounds that include starches, sugars, or cellulose. They are composed of oxygen, hydrogen, and carbon. It commonly produces energy for the body. 1gram = 4 calories [] A compound in your body that gives you energy that is usually a sugar. Carbohydrates are made of hydrogen, oxygen, and carbon. One gram of carbs equals four calories.
 * CARBOHYDRATES:**
 * SOURCE:**

Becky S

Examples of some carbohydrates are breads, pasta, pizza, potatoes, chips, cereals, cookies, biscuits, cakes, rice, sugar, and vegetables.  []   Some other examples of carbohydrates are oats, beans, lentils, noodles, and fruit. []

Samantha K.

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 Test 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. Justin S


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