MEDIUM
Earn 100

Define prothallus.

Important Questions on Plant Kingdom

MEDIUM
Which one correctly describe reproduction and life cycle of fern?
EASY
Assertion: Both bryophytes and pteridophytes contain well-developed antheridia.

Reason: Biflagellate sperms are formed by their antheridia.
EASY
In Selaginella, male gametes are
HARD
Pteris differs from Funaria in having
EASY
Assertion: In leptosporangiate development, sporangia are formed from a group of initials.

Reason: Eusporangiate development of sporangia starts from single initial.
EASY
In the below diagram, identify the a, b, c and d.
Question Image
EASY
Young sporophyte of Pteris fern draws nourishment from prothallus through
EASY
Assertion: Sporophytes of pteridophyta are dominant individual.

Reason: They do not show the formation of true root.
HARD
Sometimes prothallus of a fern gives rise to a fern plant, it is an example of
MEDIUM
Pteris, Selaginella, and Equisetum resemble each other in possessing
MEDIUM
Distinguish between Gametophyte and sporophyte.
EASY
Number of flagella in male gametes of fern is
EASY
Selaginella is heterosporous. It produces two types of spores. The microspore develops into microgametophyte and the megaspore develops into megagametophyte. With respect to gametophyte, which one statement is correct
EASY
Sorus bearing leaf of Pteridium is called
EASY
The site of spore formation in Dryopteris is
EASY
All statements are true for both ferns and conifers, except