Multiple choice

The sterile dome-shaped cap-like region in mould is called ______.

  1. spore

  2. hyphae

  3. columella

  4. sporangium

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In fungi like Mucor and Rhizopus, the columella is a sterile, dome-shaped structure found at the tip of the sporangiophore. It projects into the sporangium and serves as a support for the developing spores. The sporangium itself is the sac that contains the spores.