Carbohydrates

Multiple Choice

Which of the following statements about carbon is correct?

• Carbon is only found in living things.

• Carbon is an element found in the air, ocean, and Earth's crust.

• Carbon cannot form compounds with other elements.

• Carbon is only found in solid form.

Fill in the Blank

Carbon has ___ valence electrons in its outer shell.

Multiple Select

Which of the following are considered organic compounds or macromolecules?

• Carbohydrates

• Lipids

• Proteins

• Water

Multiple Choice

Organic compounds fall into four categories. Which of the following is NOT one of them?

• Carbohydrates

• Lipids

• Proteins

• Minerals

Fill in the Blank

Even though water contains two of the elements found in organic compounds, why isn’t it considered to be an organic compound?

Multiple Choice

Which of the following nutrients is present in the highest amount in the food item shown in the nutrition facts label?

• Carbohydrates

• Protein

• Fat

• Sodium

Benedict's solution and Soda Lab

Observation

Diet or Zero Soft drinks Are sweet to the taste even though they claim to contain zero amounts of sugar.

Question

​Are Zero or Diet soft drinks actually sugar free and is there a way to find out?

​Background

​Diet and Zero soft drinks contain an artificial sweeteners such as Aspartame. Benedict's solution is a deep-blue alkaline reagent used to test for the presence of reducing sugars, such as glucose, in a sample.

​Hypothesis:

​

Open Ended

What is your Hypothesis?

3 Clear cups
4 Pipettes
1 Thermometer
1 Bottle of Benedict's solution
Oven Mitts

• Hot Plate

• 2 Beakers

• 3 Test Tubes

• 1 Bottle of Regular Sprite

• 1 Bottle of Sprite Zero

• 1 Bottle of Water

Materials

5. Add 10 drops of Benedict's solution to each test tube

6. Allow the test tubes to remain in the hot water bath for 3 minutes

7. Record the results in the data table once the 3 minutes are complete

1. Boil hot water in a beaker to 100 degrees celsius

2. Add 1 full dropper of Sprite into 1 test tube

3. Add 1 dropper full of Sprite zero into a test tube

4. Add 1 dropper full of water into a test tube

Methods

Analysis/​Conclusion

Did your hypothesis match your results?
Why or why not?
What factors might have impacted the results of the experiment?

​

Open Ended

What is your conclusion?

Multiple Choice

What type of carbohydrate is this?

• polysaccharide
• disaccharide
• monosaccharide
• it isn't a carbohydrate

​

Multiple Choice

Which of the following is the building block of Carbohydrates?

• Amino acids

• Fatty acids 

• Monosaccharides

Multiple Choice

What does the prefix 'poly-' mean in the context of carbohydrates?

• Many

• Two

• One

• Simple

Multiple Choice

Carbohydrates come mainly from what source?

• Water

• Animal

• Plant

• Fish

Multiple Choice

What might happen if you didn't get enough carbohydrates?

• Your body wouldn't be able to build muscle mass
• Your body wouldn't have enough energy to function
• You would develop serious vitamin deficiencies
• Your bones and teeth would become weaker

Multiple Choice

Which of the following is the primary function of carbohydrates?

• Long term energy storage

• Short term energy

• Regulating the function of cells

• Storing cellular information

Multiple Choice

Which of the following elements make-up Carbohydrates?

• Carbon, Hydrogen, Oxygen 

• Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur

• Oxygen, Nitrogen, Hydrogen, Carbon

Multiple Choice

Cellulose is a polysaccharide found in animals and fungi.

• TRUE

• FALSE

Multiple Choice

Lactose is a sugar found in dairy products.

• TRUE

• FALSE

Multiple Choice

Carbohydrates come mainly from what source?

• Water

• Animal

• Plant

• Fish

Multiple Choice

M & M candy is an example of what type of carbohydrate?

• Simple Carbohydrate

• Complex Carbohydrate

• Fiber

Multiple Choice

Disaccharides and Polysaccharides must first be broken down in the body before they can be used for energy?

• TRUE

• FALSE

Multiple Choice

Which polysaccharide is used by plants to store glucose?

• glycogen

• cellulose

• starch

• chitin

Multiple Choice

Why are carbohydrates considered essential for the survival of living organisms?

• They provide structural support and energy for cells.

• They are the only molecules that contain nitrogen.

• They are not found in any living organisms.

• They are responsible for genetic information.

Fill in the Blank

Carbohydrates are made of ___ .

Multiple Choice

Which of the following is a monosaccharide?

• Glucose

• Sucrose

• Cellulose

• Lactose