Biological Molecules Quiz

What are biological molecules primarily made of?

• Minerals

• Nucleic acids

• Complex molecules

• Simple sugars

What is the main fuel for supplying energy to cells?

• Vitamins

• Glucose

• Fats

• Proteins

Which process converts carbon dioxide and water into glucose in plants?

• Respiration

• Photosynthesis

• Metabolism

• Fermentation

What is the test for starch?

• Emulsion test

• Benedict's test

• Biuret test

• Iodine test

What color does Benedict's solution turn when a reducing sugar is present?

• Brick red

• Green

• Yellow

• Blue

What type of bond joins amino acids in proteins?

• Hydrogen bond

• Covalent bond

• Peptide bond

• Ionic bond

Which of the following is a function of proteins?

• Insulation

• Transporting oxygen

• Cell wall structure

• Energy storage

What is the main component of fats?

• Nucleotides

• Amino acids

• Glycerol and fatty acids

• Glucose

Which type of fat is considered 'bad'?

• Polyunsaturated fats

• Unsaturated fats

• Saturated fats

• Trans fats

What is the emulsion test used for?

• Testing for fats

• Testing for proteins

• Testing for sugars

• Testing for starch