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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Sugarcane
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Date palm
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Maize
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Hibiscus rosa-sinensis
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None of these
D
Correct answer
Explanation
It is a plant in which both male and female sex organs occur in the same flower.
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funicle
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hilum
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micropyle
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chalaza
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none of the above
D
Correct answer
Explanation
Opposite the micropylar end, is the chalaza, representing the basal part of ovule.
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8-nucleated and 7-celled
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7-nucleate and 8-celled
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8-nucleate and 8-celled
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7-nucleated and 7-celled
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None of the above
A
Correct answer
Explanation
A typical angiosperm embryo sac, at maturity, though 8-nucleate is 7-celled. The large central cell has two polar nuclei.
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Coleorrhiza
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Coleoptile
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Scutellum
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Plumule
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Radicle
B
Correct answer
Explanation
Epicotyl has a shoot apex and a few leaf primordia enclosed in a hollow foliar structure, the coleoptile.
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haploid
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diploid
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triploid
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polyploid
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none of the above
C
Correct answer
Explanation
Seedless bananas and grapes are triploids.
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chasmogamous
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cleistogamous
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autogamous
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geitonogamous
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none of the above
B
Correct answer
Explanation
Cleistogamous flowers do not open at all, e.g., common pansy.
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Autogamy
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Geitonogamy
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Xenogamy
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Heterogamy
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None of the above
C
Correct answer
Explanation
Xenogamy: Transfer of pollen grains from anther to the stigma of a different plant.
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perianth
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thalamus
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pistil
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bract
B
Correct answer
Explanation
The terminal swollen portion of the pedicel of a flower is called thalamus.
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monoecious
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dioecious
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polygamous
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pedicellate
B
Correct answer
Explanation
The plants possessing only one type of unisexual flowers are called dioecious.
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Mustard flower
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Ocimum flower
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China rose
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Rose
C
Correct answer
Explanation
The length of all stamens is greater than that of petals in China rose.
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androecium + corolla + calyx
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androecium + gynoecium + corolla + calyx
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corolla + calyx + gynoecium
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androecium + gynoecium
D
Correct answer
Explanation
Androecium and gynoecium constitute the reproductive parts of a flower. Androecium is the male reproductive part and gynoecium is the female reproductive part.
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calcium carbonate, chitin or cartilage
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calcium silicate, chitin or soft bones
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calcium nitrate, silica or chitin
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calcium oxalate, silica or cartilage
A
Correct answer
Explanation
Correct Answer: calcium carbonate, chitin or cartilage
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Meristem
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Cambium
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Phloem
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Cork
A
Correct answer
Explanation
Cells of meristematic tissue are totipotent as they composed of immature and undifferentiated cells which are either in a continuous state of division or retain the power of division.
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Rose and lotus
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Moss and ferns
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Mint and cacti
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Bryon phylum and dahlia
B
Correct answer
Explanation
The spores are the means of reproduction in many fungi like mosses and ferns. The growth of fungus can also be observed on moist bread surface kept undisturbed for some time.
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egg nucleus with two male nuclei
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two egg nuclei by two male nuclei
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two egg nuclei by a single male nucleus
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one male nucleus with egg nucleus and other male nucleus with polar nuclei
D
Correct answer
Explanation
Double fertilization means fusion of one male nucleus with egg nucleus and other male nucleus with polar nuclei.