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Columella is a specialized structure fou...

Columella is a specialized structure found in the sporangium of

A

Ulothrix

B

Rhizopus

C

Spirogyra

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
The sporangium of Rhizopus is appear to be divide into two region, i.e., Outer fertile sporiferous zone and a central sterile columella. The protoplast of the sporiferous zone cleave mitotically to form dark coloured multinucleate spores.
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Knowledge Check

  • Columella is a specialised structure found in the sporangium of

    A
    Ulothrix
    B
    Rhizopus
    C
    Spirogyra
    D
    None of these

  • 'Lasso'' is a structure found in

    A
    Nutritive muscular cell
    B
    Epitheliomuscular cell
    C
    Sensory cells
    D
    Nematoblasts.

  • Quaternary structure is found in

    A
    Simple monomeric proteins
    B
    Conjugate monomeric proteins
    C
    Oligoproteins
    D
    Both B and C.

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