1. The organism having more differentiated plant body than algae is
a) Protist
b) Mosses
c) Monera
d) None of these
Explanation: Mosses
2. The gametophyte possessing leaf like, root like and stem like structure is
a) Gymnosperm
b) Chlorophyceae
c) Slime molds
d) Mosses
Explanation: The gametophyte possessing leaf like, root like and stem like structure is Mosses.
3. The male sex organ of bryophyte is called
a) Antherozoids
b) Testes
c) Globule
d) None of these
Explanation: The male sex organ of bryophyte is called Antherozoids.
4. The sex organ in bryophytes are
a) Reduced to single celled stage
b) Multicellular
c) Net cell developed
d) Formed in sporophyte stage
Explanation: The sex organ in bryophytes are multicellular.
5. The main plant body of bryophyte is
a) Haploid
b) Diploid
c) Polyploid
d) All of these
Explanation: The main plant body of bryophyte is Haploid.
6. Female sex organ of bryophytes is
a) Oval in shape
b) Irregular
c) Flask shaped
d) Depends on the organism
Explanation: Female sex organ of bryophytes is flask shaped.
7. Female sex organ of bryophyte is called
a) Nucleus
b) Ovary
c) Oogonia
d) Archegonium
Explanation: Female sex organ of bryophyte is called Archegonium.
8. Archegonium contains _______ egg cells in bryophytes
a) More than one
b) Two
c) Four
d) One
Explanation: Archegonium contains one egg cells in bryophytes.
9. Division in zygote results in the formation of _______ in bryophytes
a) Gametophyte
b) Sporophyte
c) Antherozoids
d) Archegonium
Explanation: Sporophyte
10. Gametophyte of bryophyte is
a) Free living and sporophyte
b) Free living and autotrophic
c) May be free living or autotropic
d) Always pressure
Explanation: Free living and autotrophic
11. Gemmae in liverworts are formed during
a) Sexual reproduction
b) Asexual reproduction
c) Spore formation
d) Adverse conduction
Explanation: Gemmae in liverworts are formed during asexual reproduction.
12. Marchantia is
a) An algae
b) Gymnosperm
c) Fern
d) Bryophyte
Explanation: Marchantia is Bryophyte.
13. Sexual reproduction in liverworts takes place by
a) Formation of sex organs always on the same thallus.
b) Formation of male and female sex organs on different thallus.
c) Sexual reproduction is absent.
d) Male and female sex organs may be present on same or different thalli.
Explanation: Male and female sex organs may be present on same or different thalli
14. The sporophyte in liverworts
a) Is the dominant and main phase of the plant body.
b) Is differentiated into foot, seta and capsule.
c) Parasite on the gametophyte
d) Both (b) and (c)
Explanation: Both (b) and (c)
15. Spore in bryophytes are formed
a) On the gametophyte
b) On the sporophyte
c) In the seta of sporophyte
d) In the capsule of sporophyte
Explanation: Spore in bryophytes are formed in the capsule of sporophyte.
16. The gametophyte of bryophyte develops from
a) A haploid spore
b) A diploid spore
c) Zygote
d) None of these
Explanation: The gametophyte of bryophyte develops from a haploid spore.
17. Zygote of bryophyte
a) Multiply and forms gametophyte
b) Multiply and forms sporophyte
c) Undergoes reduction division just after formation
d) All are correct
Explanation: Zygote of bryophyte undergoes reduction division just after formation.
18. The dominant stage of gametophyte of mosses consists of
a) Protonema which develops from the lateral bud
b) A leafy stage developing from a spore
c) Both (a) and (b)
d) A leafy stage developing from the secondary protonema
Explanation: A leafy stage developing from the secondary protonema
19. Protonema is found in
a) Liverworts
b) Selaginella
c) Funaria
d) None
Explanation: Protonema is found in Funaria.
20. Which one is correct about protonema?
a) It is a dominant stage mosses
b) Develops from spore
c) It is creeping, green, branched and frequently filamentous
d) All are correct
Explanation: All are correct