Exploring the Elemental Foundations of Biological Molecules

What are the building blocks of proteins?

• Carbohydrates

• Amino acids

• Lipids

• Nucleotides

Which element is represented by the dark gray color in the molecular models?

• Nitrogen

• Carbon

• Hydrogen

• Oxygen

What is ATP often referred to as in biological systems?

• A type of fat molecule

• The molecular currency of energy

• A segment of DNA

• The building block of proteins

Which element is shown in yellow in the ATP model?

• Carbon

• Hydrogen

• Oxygen

• Phosphorus

What is another name for a triglyceride?

• Nucleotide

• Amino acid

• Carbohydrate

• Fat molecule

What is the primary function of fat molecules?

• Storing energy

• Building proteins

• Carrying genetic information

• Catalyzing reactions

What makes up the backbone of DNA?

• Five carbon sugars and phosphates

• Nitrogenous bases and hydrogen

• Carbohydrates and lipids

• Amino acids and proteins

Which element is most abundant in the human body by percentage?

• Nitrogen

• Oxygen

• Carbon

• Calcium

What percentage of the Earth's atmosphere is made up of carbon?

• 0.04%

• 21%

• 1%

• 10%

Which element is crucial for muscle contractions and is found in bones?

• Calcium

• Phosphorus

• Carbon

• Oxygen