Previous Year Questions
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Plant Kingdom

- A perfect bull's eye for exam practice.
1
Strobili or cones are found in:
A
Pteris
B
Marchantia
C
Equisetum
D
Salvinia
Which of the following pairs is of unicellular algae?
A
Gelidium and Gracilaria
B
Anabaena and Volvox
C
Chlorella and Spirulina
D
Laminaria and Sargassum
From the evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in _______________.
A
Liverworts
B
Mosses
C
Pteridophytes
D
Gymnosperms
Which one is wrongly matched?
A
Gemma cups  - Marchantia
B
Uniflagellate gametes -  Polysiphonia
C
Unicellular organism - Chlorella
D
Biflagellate zoospores  - Brown algae
An example of colonial alga is:
A
Spirogyra
B
Chlorella
C
Volvox
D
Ulothrix
Life cycle of Ectocarpus and Fucus respectively are:
A
Haplodiplontic, Haplontic
B
Haplontic, Diplontic
C
Diplontic, Haplodiplontic
D
Haplodiplontic, Diplontic
Functional megaspore in an angiosperm develops into:
A
Embryo
B
Ovule
C
Endosperm
D
Embryo sac
Zygotic meiosis is a characteristic of:
A
Chlamydomonas
B
Marchantia
C
Fucus
D
Funaria
Which one of the following statements is wrong?
A
Agar-agar is obtained from Gelidium and Gracilaria.
B
Laminaria and Sargassum are used as food.
C
Algae increase the level of dissolved oxygen in the immediate environment.
D
Algin is obtained from red algae, and carrageenan from brown algae.