Question

In Funaria, calyptra is formed from
A. Capsule
B. Archegonium
C. Columella
D. Anthredium

Answer 1

Hint: Funaria is a genus consisting of roughly 210 types of greenery. Funaria hygrometrica is the most well-known species. Funaria hygrometrica has a bent seta which is hygroscopic and untwists when sodden. The name is derived from the Latin word "funis", which means a rope. In funaria, root-like structures known as rhizoids are available. In bryophytes, the calyptra is a developed archegonia venter that ensures the case containing the early stage sporophyte.

Complete answer:
-The calyptra is a little, maternal gametophyte structure that covers the pinnacle of the posterity sporophyte and is basic for the progress from seta development to case separation in numerous greenery taxa.
-The Capsule (Latin: capsula, little box) is derived from a compound ovary (multi carpel). A case is a structure made out of at least two carpels.
-Archegonium is the female contraceptive organ in plants and greeneries. An archegonia additionally is found in certain gymnosperms.
-Columella is a segment of sterile tissues which reaches out through the theca and is encircled by spore-delivering cells. Antheridia is the male sex organ of green growth, parasites, greeneries, and other non blossoming plants
-Antheridium is the male sex organ. It is a sac-like structure consisting of a coat of sterile cells.
In Funaria, calyptra is formed from Archegonium. So, the correct answer is option (B).

Note: The calyptra is framed by combination or union of the perianth portions and spreads the stamens and carpels as a calyx that falls off like a top. A cap-like structure on a natural product that gets confined at development by abscission. It has been conjectured to work by (1) giving a mechanical requirement that organizes the advancement of the hypothetical case, (2) emitting hormones that impact sporangium separation, (3) genuinely ensuring the undifferentiated container area, (4) forestalling water misfortune from the sporophyte peak, and additionally (5) bringing down the pace of sporophyte happening.