Macromolecule Chemical Tests

What is the purpose of Benedict's test?

• The purpose of Benedict's test is to detect proteins.

• The purpose of Benedict's test is to detect reducing sugars (monosaccharides).

• The purpose of Benedict's test is to detect lipids.

• The purpose of Benedict's test is to detect nucleic acids.

Which macromolecule is tested using the Biuret test?

• Nucleic acids

• Lipids

• Carbohydrates

• Proteins

Tags

NGSS.HS-LS1-1

What color change indicates the presence of reducing sugars (monosaccharides) in Benedict's test?

• Blue to brown

• Blue to green, yellow, orange, or red

• Blue to purple

• Blue to pink

What color change indicates the presence of proteins in the Biuret test?

• Red

• Violet or purple

• Green

• Yellow

What is the purpose of the iodine test?

• To determine the pH level of a substance.

• To identify the presence of protein.

• To detect the presence of sugar.

• To detect the presence of starch or polysaccharide.

Which macromolecule is tested using the iodine test?

• Protein

• Lipid

• Nucleic acid

• Starch

What color change indicates the presence of starch in the iodine test?

• green

• red

• yellow

• blue-black

What is the purpose of the brown paper bag translucent test?

• To determine if a material is a lipid.

• To determine if a material is a protein.

• To determine if a material is a monosaccharide.

• To determine if a material is a starch.

Which macromolecule is tested using the brown paper bag translucent test?

• nucleic acids

• proteins

• carbohydrates

• lipids

An unknown solution tests positive fore benedicts and iodine test. What macromolecules are present in the solution?

• monosaccharide

• polysaccharide

• lipid

• protein

Tags

NGSS.HS-PS1-2