Plant Kingdom - Online Test
Q1. A plant producing seeds but lacking flowers is
Answer : Option C
Explaination / Solution:
Gymnosperms produces seeds without formation of flowers. The gymnosperms (gymnos : naked, sperma : seeds) are plants in which the ovules are not enclosed by any ovary wall and remain exposed, both before and after fertilisation. The seeds that develop post-fertilisation, are not covered, i.e., are naked.
Q2. A moss plant used as a fuel are
Answer : Option A
Explaination / Solution:
Species of Sphagnum, a moss, provide peat that have long been used as fuel.
Q3. Which plant division is known as amphibians of the plant kingdom?
Answer : Option B
Explaination / Solution:
Bryophytes are also called amphibians of the plant kingdom because these plants can live in soil but are dependent on water for sexual reproduction as they release antherozoids into water where they come in contact with archegonium to produce zygote.
Q4. Bryophytes flourish is moist and shady environments because
Answer : Option D
Explaination / Solution:
These plants can live in soil but are dependent on water for sexual reproduction as they release antherozoids into water where they come in contact with archegonium to produce zygote. They usually occur in damp, humid and shaded localities.
Q5. Archegoniophore occurs in
Answer : Option C
Explaination / Solution:
Archegoniophore (female gametophytes ) develop on the thallus of Marchantia. Each archegonium produces a single egg cell which helps in sexual reproduction.
Q6. The root like structure which help in anchorage and absorption of water in Bryophytes is called
Answer : Option A
Explaination / Solution:
Rhizoids are the root like structures present in Bryophytes that help in anchorage and absorption of water. They are thin hair like structure generally present at ventral surface of Bryophytes.
Q7. Peristome of Moss takes part in
Answer : Option B
Explaination / Solution:
All moss capsules have an operculum and peristome. During spore dispersal , peristome teeth bend outwards and spores fall out of the capsule and are carried by air currents.
Q8. Thallus of Riccia is
Answer : Option D
Explaination / Solution:
Riccia is a genus of liverworts in the order Marchantiales. In bryophytes, plant body is generally haploid (n) that alternate with diploid form for shorter period. The thallus of Riccia is Halploid.
Q9. Which one is a peat moss?
Answer : Option D
Explaination / Solution:
Sphagnum is also known as peat moss as it provide peat that have long been used as fuel.
Q10. Both Pteridophytes and Gymnosperms possesses
Answer : Option C
Explaination / Solution:
Pteridophytes and Gymnosperms belongs to different division of plant kingdom but both of them possess Archegonia as female sex organ which produces female gamete for sexual reproduction.
