1. The leaves bearing sporangia are called
a) Sporophylls
b) Frond
c) Tropophylls
d) Scaly leaves
Explanation: The leaves bearing sporangia are called Sporophylls
2. Cones in pteridophytes are formed in
a) Salvinia
b) Selaginella and lycopodium
c) Dryopteris
d) Selaginella and Equisetum
Explanation: Cones in pteridophytes are formed in Selaginella and Equisetum.
3. Spores in pteridophytes give rise to
a) Sporophyte
b) Parasite gametophyte
c) Free living gametophyte
d) Free living sporophyte
Explanation: Free living gametophyte
4. Which of the following are correct about pteridophytes?
I. The sporophytes bear sporangia that are formed on the sporophylls.
II. They are frequently grown as ornamentals.
III. They are the first terrestrial plants to forms seeds.
IV. Vascular tissues are absent in pteridophytes.
V. some species flourish well in sandy soil conditions.
a) V and IV
b) I, II and IV
c) III, IV and V
d) I and II
Explanation: I, II and IV
5. Sex organs in pteridophytes are formed on the
a) Multicellular well-developed sporophyte .
b) Multicellular main gametophyte phase of the plant.
c) Photosynthetic, free living gametophyte.
d) Parasite, gametophyte dependent on sporophyte.
Explanation: Photosynthetic, free living gametophyte.
6. The male and female sex organs of pteridophyte are called
a) Globule and nucule respectively
b) Antheridia and archegonia respectively
c) Spermatangia and oogonia respectively
d) Tests and ovary respectively
Explanation: The male and female sex organs of pteridophyte are called spermatangia and oogonia respectively
7. Zygote of pteridophyte
a) Undergoes reduction division just often formation
b) Produces multicellular gametophyte
c) Produces multicellular sporophyte
d) Remains dormant
Explanation: Zygote of pteridophyte produces multicellular sporophyte
8.Majority of the pteridophytes are
I. Homosporous and produce only one kind of spores.
II. Aquatic in nature.
III. Heterosporus and produce small and large spores.
IV. Restricted to narrow geographical zone because of specific requirement of water.
a) I and II
b) II and III
c) III and IV
d) IV and I
Explanation: IV and I
9. Heterosporous pteridophytes are
a) Dryopteris and pteris
b) Selaginella and lycopodium
c) Selaginella and salvinia
d) Equisetum and Adiantum
Explanation: Heterosporous pteridophytes are Selaginella and salvinia.
10. Heterosporous plants are
a) Plants producing one kind of spores.
b) Plants producing large and small spores.
c) Plants producing two type of spores which are similar in size.
d) None of these
Explanation: Plants producing large and small spores.
11. Megaspore germinate into
a) Female gametophyte
b) Gametophyte having both male and female sex organs
c) Male gametophyte
d) Male sporophyte
Explanation: Megaspore germinate into female gametophyte
12. The female gametophytes are retained on the parent sporophyte in
a) Homosporous species of pteridophytes
b) Heterosporous species of pteridophytes
c) Both are correct
d) Both are incorrect
Explanation: Heterosporous species of pteridophytes
13. Process similar to seed habit considerably is observed in
a) Homosporous species of pteridophytes
b) Heterosporous species of pteridophyte
c) All the members of pteridophytes
d) Not seen in pteridophyte
Explanation: Heterosporous species of pteridophyte
14. Vascular plants, with seeds but no fruits are
a) Bryophyte
b) Angiosperms
c) Gymnosperms
d) Pteridophytes
Explanation: Gymnosperms
15. In heterosporous pteridophyte
a) Zygote develops into young embryo in the female gametophyte.
b) Zygote multiples and develop into sporophyte in the soil.
c) All spores are similar
d) None of these
Explanation: Zygote develops into young embryo in the female gametophyte.
16. Naked seed plants are
a) Algae
b) Bryophyte
c) Angiosperms
d) Gymnosperms
Explanation: Naked seed plants are gymnosperms
17. Ovules are not enclosed by the ovaries in
a) Pteridophytes
b) Angiosperms
c) Gymnosperms
d) All of these
Explanation: Gymnosperms
18. The tallest gymnosperms is
a) Sequoia (red wood tree)
b) Pinus
c) Cycas
d) Ginkgo
Explanation: The tallest gymnosperms is Sequoia (red wood tree)
19. Coralloid roots having association with N2 fixing bacteria are found in
a) Pinus
b) Cedrus
c) Sequoia
d) Cycas
Explanation: Coralloid roots having association with N2 fixing bacteria are found in cycas.
20. In gymnosperms, the mycorrhizal association are found in
a) Cycas
b) Pinus
c) Cedrus
d) All of these
Explanation: In gymnosperms, the mycorrhizal association are found in pinus.