Question

In Funaria, archegonia attracts antherozoids by

• A. Sucrose / Sugar
• B. Malic acid
• C. Maleic acid
• D. Citric acid

Answer 1

The correct option is A Sucrose / Sugar

• During fertilization of Funaria, the ventral canal cell and the neck canal cells of the archegonium dis­integrate forming a mucilaginous substance. This mucilaginous substance absorbs water accu­mulated as rain or dew water, then swells up and the resultant pressure breaks apart the terminal cover cell. Now sugar containing mucilaginous substances ooze out through the opening of the archegonial neck.
• The liberated antherozoids are now attrac­ted chemotactically towards the archegonia. Large numbers of antherozoids enter the neck, but only one of them fuses with the egg nucleus to form the diploid zygote.
  
• Hence In Funaria, archegonia attract antherozoids by 'Sucrose / Sugar '.
• So, the correct answer is 'Sucrose / Sugar '.