Pteridophytes Part - II

20 Questions | By Niveditaazad1984 | Updated: Mar 22, 2022 | Attempts: 1059

Questions

Settings

Create your own Quiz

MARKS 20 TIME :20 MIN

Questions and Answers

1.

The pollination of spores in Nephrolepis i.e. spores are dispersed and carried away by
- A.
  
  Water
- B.
  
  Air
- C.
  
  Insects
- D.
  
  Humans
2.

The terminology used when antheridium matures first to archegonium
- A.
  
  Protandry
- B.
  
  Protogyny
- C.
  
  Protandrygyny
- D.
  
  None of the above
3.

The gametophytic generation of fern is known as
- A.
  
  Prothallus
- B.
  
  Protuberance
- C.
  
  Progametangia
- D.
  
  None of the above
4.

____type of fertilization occurs in Nephrolepis
- A.
  
  Self Fertilization
- B.
  
  Cross Fertilization
- C.
  
  Both a & b
- D.
  
  None of the above
5.

The cells of Prothallus in Nephrolepis have following features
- A.
  
  Thin walled
- B.
  
  Have chloroplast
- C.
  
  Stomata absent
- D.
  
  All of the above
6.

The Prothallus in fern Nephrolepis is
- A.
  
  Monoecious
- B.
  
  Dioecious
- C.
  
  Without sex organs
- D.
  
  None of the above
7.

In the Prothallus of Nephrolepis location of sex organs is
- A.
  
  Archegonia near rhizoids and antheridia below apical notch
- B.
  
  Antheridia near rhizoids but archegonia absent
- C.
  
  Antheridia near rhizoids and Archegonia below apical notch partially embedded in cushion
- D.
  
  Archegonia near rhizoids and Antheridia absent
8.

The Sexual Reproduction in Nephrolepis is
- A.
  
  Isogamous
- B.
  
  Anisogamous
- C.
  
  Oogamous
- D.
  
  Absent
9.

The antheridial wall in Nephrolepis made up of which cells
- A.
  
  First Ring cell
- B.
  
  Second Ring cell
- C.
  
  Cap cell
- D.
  
  All of the above
10.

The androcytes / antherozoid mother cells present in antheridium show ploidy level
- A.
  
  Haploid
- B.
  
  Diploid
- C.
  
  Triploid
- D.
  
  Polyploid
11.

The androcytes undergo which process to form haploid multiflagellate antherozoids
- A.
  
  Mitosis
- B.
  
  Meiosis
- C.
  
  Amitosis
- D.
  
  Metamorphosis
12.

Single Neck Canal Cell in archegonium of Nephrolepis bears ___ number of nuclei
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  Many
13.

The antherozoids in fern is
- A.
  
  Simple and uniflagellate
- B.
  
  Spirally coiled and biflagellate
- C.
  
  Simple and multiflagellate
- D.
  
  Spirally coiled and multiflagellate
14.

The mucilage released from archegonium of fern contains
- A.
  
  Citric acid
- B.
  
  Aspartic acid
- C.
  
  Malic acid
- D.
  
  None of the above
15.

Mucilage when dissolved in water, attract swarms of antherozooids towards archegonium is known as
- A.
  
  Chemotaxis
- B.
  
  Phytotaxis
- C.
  
  Gamotaxis
- D.
  
  None of the above
16.

Which one of the following cell lead to the development of sporophyte in Nephrolepis
- A.
  
  Egg
- B.
  
  Ovum
- C.
  
  Zygote
- D.
  
  Endosperm
17.

The diploid zygote so formed after fertilization develops a protective wall around it is now known as
- A.
  
  Egg
- B.
  
  Oospore
- C.
  
  Ovum
- D.
  
  None of the above
18.

The haploid sexual generation in Nephrolepis is
- A.
  
  Gametophyte
- B.
  
  Sporophyte
- C.
  
  Both of them
- D.
  
  None of the above
19.

Sporophyte produces gametophyte through
- A.
  
  Asexual Reproduction
- B.
  
  Sexual Reproduction
- C.
  
  Vegetative Reproduction
- D.
  
  Both a & b
20.

In ferns Gametophyte produces sporophyte through
- A.
  
  Asexual Reproduction
- B.
  
  Sexual Reproduction
- C.
  
  Vegetative Reproduction
- D.
  
  Both a & b