Tag: biology

Questions Related to biology

Funaria is fixed to substratum by

  1. Unicellular simple rhizoids

  2. Multicellular branched oblique septate rhizoids

  3. Branched coenocytic rhizoids

  4. Tuberculate rhizoids


Correct Option: B

Sporophyte of Funaria contains columella

  1. Sterile and lateral

  2. Fertile and lateral

  3. Fertile and middle

  4. Sterile and middle


Correct Option: D

Number of peristome teeth in Funaria capsule is

  1. $16$ in one whorl

  2. $16$ in two whorls

  3. $32$ in two whorls

  4. $32$ in one whorl


Correct Option: C

In Funaria, calyptra is formed from

  1. Capsule

  2. Archegonium

  3. Columella

  4. Antheridium


Correct Option: B
Explanation:

  • In the majority of bryophytes, embryonic sporophytes elongate gradually to form a foot and a spore-bearing capsule. Calyptra is an enlarged archegonial venter in bryophyte that protects the capsule containing the embryonic sporophyte.
  • Columella is a column of sterile tissues which extends through the theca and are surrounded by spore-producing cells. Antheridium is the male sex organ of algae, fungi, ferns, and other nonflowering plants
So the correct answer is B. 

Chloroplasts are found in the spores of

  1. Yeast

  2. Funaria

  3. Dryopteris

  4. Rhizopus


Correct Option: B

In life cycle of Funaria spores are beginning of the generation

  1. Gametophytic

  2. Sporophytic

  3. Both A and B

  4. Peristome


Correct Option: A

In Funaria, rhizoids arise from

  1. Basal region

  2. Apical region

  3. Dorsal region

  4. Ventral region


Correct Option: A

In Funaria, male and female sex organs occur at the tip of two branches, main axis and large branch. The condition is called

  1. Pleurocarpous

  2. Acrocarpous

  3. Apocarpous

  4. Syncarpous


Correct Option: B

Which is characteristics of Funaria?

  1. Scalariform

  2. Xylem

  3. Elaters

  4. Peristome


Correct Option: D

Partially independent sporophyte is found in

  1. Pteris

  2. Funaria

  3. Dryopteris

  4. Selaginella


Correct Option: B