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Plant Kingdom · Question 60

AIPMT 2012 (Prelims)MCQEasy📈 Topic in 50% papers+4−1
1

Which one of the following is a correct statement?

  1. Pteridophyte gametophyte has a protonemal and leafy stage.
  2. In gymnosperms, female gametophyte is free-living.
  3. Antheridiophores and archegoniophores are present in pteridophytes.
  4. Origin of seed habit can be traced in pteridophytes.

Answer

(4) Origin of seed habit can be traced in pteridophytes.

Solution

(1) Protonemal and leafy stages belong to the gametophyte of mosses, not of pteridophytes (prothallus) ⇒ incorrect.

(2) In gymnosperms the female gametophyte is retained within the megasporangium (ovule) ⇒ not free-living ⇒ incorrect.

(3) Antheridiophores and archegoniophores occur in the liverwort Marchantia ⇒ incorrect.

(4) As per NCERT, heterosporous pteridophytes ( Selaginella, Salvinia) retain the female gametophyte on the parent sporophyte; this event is a precursor to the seed habit ⇒ correct.

Answer: (4)

AIPMT 2012 (Prelims)

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2

Cycas and Adiantum resemble each other in having

  1. seeds
  2. motile sperms
  3. cambium
  4. vessels
AIPMT 2012 (Prelims)
3

Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because

  1. female gametophyte is free and gets dispersed like seeds.
  2. female gametophyte lacks archegonia.
  3. megaspores possess endosperm and embryo surrounded by seed coat.
  4. embryo develops in female gametophyte which is retained on parent sporophyte.
AIPMT 2011 (Mains)
4

Consider the following four statements whether they are correct or wrong. The two wrong statements together are

  1. A and C
  2. A and D
  3. B and C
  4. A and B.
AIPMT 2011 (Mains)
5

Examine the figure given below and select the correct option giving all the four parts (A, B, C and D) rightly identified. [Figure]

  1. (A) Archegoniophore (B) Female thallus (C) Gemma cup (D) Rhizoids
  2. (A) Antheridiophore (B) Male thallus (C) Globule (D) Roots
  3. (A) Archegoniophore (B) Female thallus (C) Bud (D) Foot
  4. (A) Seta (B) Sporophyte (C) Protonema (D) Rhizoids
AIPMT 2011 (Mains)
6

The gametophyte is not an independent, free-living generation in

  1. Polytrichum
  2. Adiantum
  3. Marchantia
  4. Pinus
AIPMT 2011 (Prelims)
7

Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tend to be

  1. smaller but to have larger sex organs
  2. larger but to have smaller sex organs
  3. larger and to have larger sex organs
  4. smaller and to have smaller sex organs
AIPMT 2011 (Prelims)
8

Archegoniophore is present in

  1. Marchantia
  2. Chara
  3. Adiantum
  4. Funaria
AIPMT 2011 (Prelims)
9

A prokaryotic autotrophic nitrogen fixing symbiont is found in

  1. Alnus
  2. Cycas
  3. Cicer
  4. Pisum
AIPMT 2011 (Prelims)
10

Examine the figures A, B, C and D. In which one of the four options all the items A, B, C and D are correct? [Figure]

  1. (A) Funaria, (B) Adiantum, (C) Salvinia, (D) Riccia
  2. (A) Equisetum, (B) Ginkgo, (C) Selaginella, (D) Lycopodium
  3. (A) Chara, (B) Marchantia, (C) Fucus, (D) Pinus
  4. (A) Selaginella, (B) Equisetum, (C) Salvinia, (D) Ginkgo
AIPMT 2010 (Mains)
11

Examine the figures (A–D) given below and select the right option, in which all the four structures A, B, C and D are identified correctly. [Figure]

  1. A Offset, B Antheridiophore, C Antipodals, D Oogonium
  2. A Rhizome, B Sporangiophore, C Polar cell, D Globule
  3. A Sucker, B Seta, C Megaspore mother cell, D Gemma cup
  4. A Runner, B Archegoniophore, C Synergid, D Antheridium
AIPMT 2010 (Mains)

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