[Campbell Biology P.1006] Which statement about the components of antimicrobial proteins and ... | Practice Question
Which statement about the components of antimicrobial proteins and their functions is FALSE?
A: Interferons are secreted by virus-infected cells to induce uninfected cells to produce substances that inhibit viral replication.
B: The complement system primarily consists of approximately 50 proteins circulating in blood plasma.
C: Activation of the complement system can lead to the lysis of invading cells.
D: Some types of interferons help activate macrophages, thereby enhancing their phagocytic ability.
Explanation
The text explicitly states that the complement system consists of 'roughly 30 proteins in blood plasma.' The other options accurately describe the functions of interferons and the complement system as presented in the passage.