Podcast Beta
Questions and Answers
Describe the process of fertilization in Riccia Water.
Antherozoids swim in water to reach the archegonium, where one penetrates the egg for fertilization.
What triggers the release of antherozoids in Riccia Water?
The apical cells of the antheridial wall swell and break down to release the antherozoids.
How do antherozoids reach the egg in Riccia Water?
Antherozoids swim in a thin film of water to the archegonium, guided by chemotactic response.
What is the result of the fusion of male and female gametes in Riccia Water?
Signup and view all the answers
Why does the mucilaginous mass in the archegonium swell up in Riccia Water?
Signup and view all the answers
What is the role of the neck canal cells in Riccia Water fertilization?
Signup and view all the answers
What are the essential factors for spore germination?
Signup and view all the answers
What is the structure that comes out of the spore as a tubular outgrowth during germination?
Signup and view all the answers
What is the content of the cytoplasm inside the germinal tube during germination?
Signup and view all the answers
What structure does the germ tube form as it elongates rapidly during germination?
Signup and view all the answers
What is the first cell division that occurs at the distal end of the club-shaped structure during germination?
Signup and view all the answers
How many tiers of cells are formed during the octant stage of germination?
Signup and view all the answers
What is the function of the distal tier of four cells in the octant stage?
Signup and view all the answers
Describe the structure of a mature antheridium.
Signup and view all the answers
What is the role of water in the dehiscence of antheridium?
Signup and view all the answers
Explain the structure of an archegonium.
Signup and view all the answers
What is the significance of the upper part of the neck of the archegonium protruding out of the cavity?
Signup and view all the answers
Differentiate between protandry and protogyny in monoecious species.
Signup and view all the answers
Explain the term homothallic and give an example of a heterothallic species.
Signup and view all the answers