Biology · Science General
Botany and Plant Science
5,038 Questions
Botany and plant science delve into the biological study of plant life, covering structural anatomy, physiological processes, and reproductive mechanisms. Key topics include inflorescence patterns, root modifications, and seed development, which are vital for biology sections in medical entrance exams. This collection of practice questions helps solidify understanding of complex plant functions.
Plant ReproductionPlant AnatomyRoot ModificationsInflorescence PatternsPlant Morphology
Botany and Plant Science Questions
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develop into the embryo
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nourish the embryo
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develop into stem
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form roots
B
Correct answer
Explanation
The role of endosperm portion of seed is to nourish the embryo.
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The ovules in gymnosperms are enclosed by an ovary wall.
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Gymnosperms have tap root.
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They are heterosporous.
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Gymnosperms include medium-sized or tall trees and shrubs.
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The stems are unbranched or branched.
A
Correct answer
Explanation
Yes, it is the correct answer as this statement is wrong. The ovules in gymnosperms are not enclosed by an ovary wall. The seeds too are not covered, i.e. they are naked.
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Antheridia and archegonia
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Protonema and leafy stage
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Zygote and sporophyte
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Protonema and antheridia
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None of these
B
Correct answer
Explanation
Yes, it is correct. Protonema develops from the spore. The leafy stage develops from the protonema as a lateral bud.
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Only a
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Only b
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Only a and b
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Only c and d
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Only b and d
E
Correct answer
Explanation
Yes, it is the correct answer, as both the statements are false. The small-sized gametophyte is called pollen grain. Sporangia are borne on sporophylls, which are arranged spirally along an axis.
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Microphyll
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Megaphyll
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Homosporous
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Megaspores
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Heterosporous
E
Correct answer
Explanation
Yes, it is the correct answer. Plants producing spores of two different sizes and sexes are known as heterosporous.
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Only a
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Only c
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Only b and d
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Only a and c
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Only b and d
D
Correct answer
Explanation
Yes, it is the correct answer as both the statements are false. Male and female gametes are developed in specialized structures called flowers, and Wolffia is microscopic; it is the smallest angiosperm.
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F factor
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Col factor
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Ti factor
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Ri factor
D
Correct answer
Explanation
Root inducing plasmid which induces profuse rooting in infected plants.
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Tulip
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Tunado
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Tunko
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None of these
A
Correct answer
Explanation
The word 'Tulip' comes from the Persian word 'tulipan' or 'delband', meaning turban, because the flower resembles a turban. The other options 'Tunado' and 'Tunko' are not real flower names.
B
Correct answer
Explanation
Scion is a short piece of detached shoot containing several dormant buds.
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Lilly
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Marigold
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Rose
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Shoe flower
C
Correct answer
Explanation
The rose is the national flower of Britain (specifically England), and has been a symbol of the country since the Wars of the Roses in the 15th century. The Tudor Rose, combining red and white roses, represented the union of rival houses.
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Vagina
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Hypopodium
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Mesopodium
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Epipodium
C
Correct answer
Explanation
It is the name used for petiole of leaf.
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Shoe flower
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Cassia
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Gardenia
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Castor
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free lateral stipule
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scaly stipule
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intrapetiolar stipule
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opposite stipule
A
Correct answer
Explanation
This type of stipule is present in Hibiscus rosa-sinesis, the shoe flower
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Calophyllum
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Mangifera
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Ricinus
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Smilax
A
Correct answer
Explanation
It is a dicot plant but does not have the charcteristic reticulate venation.