EASY
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What are the three characteristics of Gnetum?

Important Questions on Plant Kingdom

MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Identify the plant that possess all the following characters
A) Xylem and phloem are main conducting elements.
B) Pollen grains are carried by wind.
C) Transfer of pollen is direct.
D) Ovules develop into seeds after fertilisation.
EASY
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Winged pollen grains are present in
MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
In which of the following gametophyte is not independent free living?
HARD
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Which of the following statements is correct?
MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Pinus seed cannot germinate and establish without fungal association. This is because:
MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Conifers are adapted to tolerate extreme environmental conditions because of:
EASY
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Select the correct statement:
HARD
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
The seed of Pinus is
MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Spur of Pinus sylvestris is
EASY
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
The pollination in Pinus is
MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
A. Siphonogamy is found in Pinus.
B. Stem branches are monomorphic in Pinus.
C. Wood is monoxylic and manoxylic in Pinus.
EASY
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
In Pinus male and female reproductive structures occur
MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
In Pinus needle vascular bundles are
EASY
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Siphonogamous fertilization takes place in
MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
In Cycas
MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Cycas and Adiantum resemble each other in having
MEDIUM
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Integument in Pinus ovule is
EASY
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Meroblastic type of embryo development takes place in
EASY
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Antheridia and archegonia are most reduced in
EASY
Biology>Diversity of Living Organisms>Plant Kingdom>Gymnosperms
Endosperm of Pinus is