Quiz 2 - Carbohydrates and Lab Procedure

What type of carbohydrate is produced by plants through photosynthesis?

• Glucose

• Sucrose

• Lactose

• Glycogen

Glucose is a ...

• simple sugar

• complex sugar

What is the primary job of simple carbohydrates?

• To protect plants.

• To transmit genetic information

• To insulate organisms in cold environments

• To provide readily available energy

Which polysaccharide is used by plants to make their cell wall?

• starch

• glycogen

• cellulose

• chitin

What is the meaning of the prefix "di-"?

Example: disaccharide

• 1

• 2

• 4

• 10

What is the meaning of the prefix "poly-"?

Example: polysaccharide

• 1

• 2

• 4

• Many

What is the meaning of the prefix "mono-"?

Example: monosaccharide

• 1

• 2

• 4

• Many

Select the test tube

Select the beaker

Place the following laboratory procedure steps for the Benedict's test for glucose in a correct order.

• Prepare your materials and safety equipment. Identify who will obtain the materials in the group.

• Prepare a small amount of the food sample by grinding it and transferring it to the test tube with 10 mL of water and stir or swirl gently.

• Add 10 mL of Benedict's solution to the test tube and mix gently.

• Place test tube with sample in hot water bath for 3-5 minutes and identify who will keep the time.

• Take test tube out of hot water carefully and observe color. Record color in data table and responsibly dispose of waste.