Home » The crosswalls constrict which of the following parts and then grow inwards to form septum? Fungi MCQs The crosswalls constrict which of the following parts and then grow inwards to form septum? April 12, 2022 10 Views Q. The crosswalls constrict which of the following parts and then grow inwards to form septum? a. hyphae b. lumen c. protoplasm d. plasmalemma Answer: plasmalemma