Biological Macromolecules Worksheet

Which of the following is a primary function of carbohydrates?

• Speeding up chemical reactions
• Storing genetic information
• Acting as a long-term energy storage
• Providing short-term energy source

Which monomer serves as the building block of glycogen, a polymer made up of many glucose molecules?

• Steroid
• Monosaccharide
• Amino acid
• Nucleotide

What type of macromolecule forms the mechanical barrier dividing a cell from the external environment?

• Carbohydrate
• Lipid
• Protein
• Nucleic Acid

Albumin is a protein found in egg whites. Which of the following best describes the molecular structure of albumin?

• A set of three fatty acids attached to a molecule of glycerol
• A series of monosaccharides linked together
• A folded chain of amino acids
• A sequence of nucleotides twisted into a helical structure

How many types of amino acids are there? Just write the number for your answer.

Which of the following biological macromolecules is correctly paired with one of its functions?

• Nucleic acids → digest dead cells
• Carbohydrates → store genetic information
• Lipids → give quick energy to cells
• Proteins → provide cell structure

Which type of macromolecule has a long hydrocarbon tail, also known as a fatty acid chain?

• Carbohydrate
• Lipid
• Protein
• Nucleic Acid

What type of bond forms between two amino acids?

• Steroid
• Aminoid
• Peptide
• Covalent

Which part of an amino acid’s basic structure gives it its unique functional characteristics?

• Amino group (-NH2)
• R-group
• Carboxyl group (-COOH)
• Central alpha (𝛼) carbon

Which of the following statements about enzymes is false?

• Most enzymes are proteins
• Most enzymes are lipids
• They speed up a chemical reaction
• They are found in all living things