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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Calyx and corolla
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Sepals and petals
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Stamens and carpels
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Stamens and petals
C
Correct answer
Explanation
Stamens and carpels are reproductive parts of a flower, which contain germ cells.
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Chlamydomonas
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Pinus
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Dryopteris
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Equisetum
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Selaginella
A
Correct answer
Explanation
It is a type of algae that has gametophytic plant body (haploid). It reproduces sexually by gametes which are isogametes that fuse to produce diploid zygote, which is the only sporophytic generation.
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Volvox
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Chlamydomonas
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Spirogyra
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Fucus
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Chara
C
Correct answer
Explanation
Isogamous condition with non-flagellated gametes is found in spirogyra.
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Petal
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Stamen
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Sepal
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Style
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Carpel
B
Correct answer
Explanation
The stamens in a flower are collectively called the androecium.
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rhizoids
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mycorrhizae
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rhizomes
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fronds
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setae
C
Correct answer
Explanation
The horizontal stems in ferns are called Rhizomes.
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ovule
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style
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ovary
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carpel
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archegonium
C
Correct answer
Explanation
After fertilization, ovary changes into a fruit.
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Dryopteris
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Sequoia
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Pinus
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Cycas
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Selaginella
D
Correct answer
Explanation
Coralloid roots are specialized roots found in cycas. They are associated with nitrogen fixing cyanobacteria.
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phototropism
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geotropism
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chemotropism
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thigmotropism
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hydrotropism
D
Correct answer
Explanation
This is the correct answer. The stimulus in this case is the touch of the bamboo stick.
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Only a
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a and b
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Only c
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c and d
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Only d
E
Correct answer
Explanation
This is the correct answer. The roots grow away from the direction of the sunlight source.
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The plants have tap root system.
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The embryo bears one cotyledon in the seeds.
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Leaves have parallel venation.
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Secondary growth does not occur.
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Flowers are trimerous, i.e. they have three of each floral part.
A
Correct answer
Explanation
This is the correct option as this is a property of Dicotyledonae.
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Plant body is gametophytic.
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Pteriodophytes are non-vascular in nature.
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Real stem and leaves are always absent.
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Fixation of a plant's body is carried out by rhizoids.
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The gametophyte is small and independent.
E
Correct answer
Explanation
This is the correct option as this is a characteristic of plants of division Pteridophyta.
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Only a and b
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Only b and c
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Only a and c
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Only b and d
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Only a and d
C
Correct answer
Explanation
This is the correct option. Lateral tissue and intercalary tissue belong to the category of meristematic tissue.
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Only a
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Only a and b
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Only b
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Only b and c
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Only c
E
Correct answer
Explanation
This is the correct option. Collenchyma is absent in monocot stems, roots and leaves.
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Only a
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Only a and b
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Only b
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Only b and c
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Only c
A
Correct answer
Explanation
This is the correct option. Parenchyma is found in the soft parts of the plant such as cortex of roots, ground tissues in stems and mesophyll of leaves.
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Only a
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Only a and b
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Only b
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Only b and c
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Only c
C
Correct answer
Explanation
This is the correct option. Sclerenchyma's function is mainly mechanical and protective, giving strength, rigidity, flexibility and elasticity to the plant body.