Differentiate between the male and female gametophytes of pteridophytes and gymnosperms with diagram
Answers
Answer:
Male gametophyte of pteridophyte Male gametophyte of gymnosperm
(i) Distinct male gametophyte may not be present. (i) Distinct male gametophyte is always present.
(ii) Antheridium is present (ii) Antheridium is absent.
(iii) Male gametes are flagellated. (iii) Male gametes may not be flagellated
(iv) Male gametes need water as a medium to swim up to the female gamete. (iv) Male gametes reach the female gamete through a pollen tube. Water is not required for this purpose.
Female gametophyte of pteridophyte Female gametophyte of gymnosperm
(i) Distinct female gamete may not be present. (i) A distinct female gamete is always present.
(ii) It is largely independent. (ii) The female gamete is not independent of the parent plant.
(iii) It is not enclosed in an ovule. (iii) It is enclosed in an ovule.
Answer:
Distinct male gametophyte is always present. Male gamete use pollen tube to reach the female gametophyte. ... Archegonium is the female sex organ that produces the female gamete or egg.
Explanation:
Distinct male gametophyte is always present. Male gamete use pollen tube to reach the female gametophyte. ... Female gamete is attached to the parent plant.