Lab 2e
Variation in the Structure
and
Properties of Carbohydrates
Purpose- What is the structure, taste, and texture of different carbohydrates?
Materials list
Materials list
- Sucrose
- Glucose
- Fructose
- Galactose
- Maltose
- Lactose
- Starch, Soluble
- Cellulose
- petri dishes (60 X 15 mm, sterile)
- plastic spoons
- paper cups
- tap water
Procedure(Part1):
- On the internet look up the 8 Carbohydrates in the materials list. Find the Structure image and Put it on your Weebly account.
Procedure (Part2):
- On a paper towel label each Carb, and place a small scoop of each carb were it belongs.
- Taste with your finger each one, make sure not to double dip.
- Evaluate sweetness, For each carb assign it a number, define your scale.
- Record the value in the data table, after look up the function and type of carb.
Data Analysis / Reflection
Part 1:
Part 2:
Data Analysis:
Sucrose, glucose, and fructose were the sweetest carbohydrates. Glucose and fructose were monosachharide's and sucrose was a disaccharide . Because they had a small amount of rings, they were sweeter. Due to everyone having different taste buds, the ratings of the carbohydrates varied. My partner and I had the same, but when i went to other groups, theres were all different. From this we can see there are different out comes from this experiment, errors could be mixing the sugars up, but human error in taste isn't an error. Monosachharide's and disaccharide' s are very similar in structure, disaccharides having two monosachharides. They both give off or deliver energy as their functions. If there was a test that could indicate the sweetness of carbohydrates, by using a chemical reaction, it would prevent any big differences in outcomes. I suggest added other carbs to the lab to get more of a result, and to see the difference in the rings better.
Reflection:
I thought that it was really interesting when you could taste the difference between the amount of rings. What i mesa an by this is that it was sweeter with less rings, and plain when it has more rings. I loved it when we found out what cellulose did after kids in the class ate a spoonful. The kids in my class would find out the true affects but the time it hit there digestive system. Who would of know cellulose is like a laxative. It was hilarious, this lab was so fun, and its great for all ages. I really enjoyed this lab and look forward to more labs lie this one.
My partner was Rosalie Urban, and we worked amazingly together. We had a great time working together, and were able to split up the work of finding the functions and type of carb evenly. We had tons of time left after we completed out lab. I feel we worked great together and were able to get our work done on time. Rosalie is truly fun to work with, and we really got the job done in the end. We laughed so hard at all those kids when we walked around and saw them eating the cellulose. We both enjoyed the Fructose. I would love to work with Rosalie again, because we collaborated very well together.
Next time in the lab, I will make sure to continue to get my work done, and not fool around. It was a great lab, and I feel that there isn't anything I truly failed at. In future times of this lab i recommend trying more carbohydrates, to do more in the lab.
Sucrose, glucose, and fructose were the sweetest carbohydrates. Glucose and fructose were monosachharide's and sucrose was a disaccharide . Because they had a small amount of rings, they were sweeter. Due to everyone having different taste buds, the ratings of the carbohydrates varied. My partner and I had the same, but when i went to other groups, theres were all different. From this we can see there are different out comes from this experiment, errors could be mixing the sugars up, but human error in taste isn't an error. Monosachharide's and disaccharide' s are very similar in structure, disaccharides having two monosachharides. They both give off or deliver energy as their functions. If there was a test that could indicate the sweetness of carbohydrates, by using a chemical reaction, it would prevent any big differences in outcomes. I suggest added other carbs to the lab to get more of a result, and to see the difference in the rings better.
Reflection:
I thought that it was really interesting when you could taste the difference between the amount of rings. What i mesa an by this is that it was sweeter with less rings, and plain when it has more rings. I loved it when we found out what cellulose did after kids in the class ate a spoonful. The kids in my class would find out the true affects but the time it hit there digestive system. Who would of know cellulose is like a laxative. It was hilarious, this lab was so fun, and its great for all ages. I really enjoyed this lab and look forward to more labs lie this one.
My partner was Rosalie Urban, and we worked amazingly together. We had a great time working together, and were able to split up the work of finding the functions and type of carb evenly. We had tons of time left after we completed out lab. I feel we worked great together and were able to get our work done on time. Rosalie is truly fun to work with, and we really got the job done in the end. We laughed so hard at all those kids when we walked around and saw them eating the cellulose. We both enjoyed the Fructose. I would love to work with Rosalie again, because we collaborated very well together.
Next time in the lab, I will make sure to continue to get my work done, and not fool around. It was a great lab, and I feel that there isn't anything I truly failed at. In future times of this lab i recommend trying more carbohydrates, to do more in the lab.