Cell Structure and Function

What is the function of antibodies?

• Store energy
• Transport nutrients
• Defend against pathogens
• Regulate hormones

What is the function of primase in DNA replication?

• Repairs DNA
• Seals gaps
• Unwinds DNA
• Synthesizes RNA primer

What is the function of helicase in DNA replication?

• Adds nucleotides
• Proofreads DNA
• Joins Okazaki fragments
• Separates DNA strands

What is the function of DNA ligase?

• Unwinds DNA
• Adds nucleotides
• Proofreads DNA
• Joins DNA fragments

What is a holoenzyme?

• Inactive enzyme without cofactor
• Protein part of enzyme
• Complete enzyme with prosthetic group
• Denatured enzyme