Ch 4. Biological Molecules Quiz

Which chemical elements make up carbohydrates?

• Carbon, Hydrogen, Oxygen

• Nitrogen, Oxygen, Phosphorus

• Carbon, Hydrogen, Nitrogen

• Carbon, Oxygen, Phosphorus

Which test is used to test for starch?

• Iodine test

• Benedict's test

• Biuret test

• Ethanol emulsion test

What is the function of cellulose in plants?

• Energy storage

• Structural support

• Enzyme catalyst

• Transport medium

Which test is used to test for reducing sugars?

• Iodine test

• Benedict's test

• Biuret test

• Ethanol emulsion test

What is the structure of DNA?

• Double helix

• Single strand

• Triple helix

• Spiral

Which chemical bases pair up in DNA?

• A with T, and C with G

• A with C, and T with G

• A with G, and C with T

• A with U, and C with G

What happens to proteins during denaturation?

• They lose their shape and function

• They become more stable

• They increase in size

• They become soluble in water

Which test is used to test for vitamin C?

• Iodine test

• Benedict's test

• Biuret test

• DCPIP test

What are lipids composed of?

• Fatty acids and glycerol

• Amino acids

• Glucose molecules

• Nucleotides

What is the function of proteins in cells?

• Energy storage

• Structural support

• Genetic information storage

• Enzyme catalyst