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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Phloem fibres
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Phloem parenchyma
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Vascular cambium
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The sieve cells
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Companion cells
B
Correct answer
Explanation
Phloem parenchyma is represented by a group of living parenchyma cells that are found in-between the sieve tubes. They are meant only for storage of organic food.
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balloons
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spore bags
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sporangiophores
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gamete
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bud
C
Correct answer
Explanation
Yes, the sporangiophore bears spores. Special spore-bearing organs are present in fungi and algae. These are called sporangiophores. The sporangiophore bears spores.
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filament
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style
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stigma
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anther
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ovary
B
Correct answer
Explanation
Yes, it is correct. Style is the tube-like structure in gynoecium.
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corolla
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calyx
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androecium
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gynoecium
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anther
B
Correct answer
Explanation
Yes, the outermost whorl is called calyx. It is composed of green leaf-like structures called sepals.
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Style
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Filament
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Anther
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Stigma
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Calyx
C
Correct answer
Explanation
Yes, it is the correct answer. The capsule like structure at the top is called anther. The anther produces pollen grains, which are the male gametes.
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Gametes - Fusion - Embryo - Fertilization - Zygote - New individual
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Gametes - Fusion - Zygote - Fertilization - Embryo - New individual
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Gamete - Fusion - Fertilization - Zygote - Embryo - New individual
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Gamete - Zygote - Fusion - Fertilization - Embryo - New individual
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Gamete - Zygote - Fertilization - Fusion - Embryo - New individual
C
Correct answer
Explanation
Yes, it is correct. Two gametes, viz. male and female gametes, are formed. The fusion of male and female gametes is called fertilization. Zygote is formed after fertilization. The zygote develops into an embryo and finally into a new individual.
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style
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anther
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ovary
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stigma
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filament
C
Correct answer
Explanation
Yes, ovary produces the eggs or female gametes.
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filament
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style
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ovary
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stigma
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sepals
D
Correct answer
Explanation
Yes, the transfer of pollen grains from anthers to stigma is called pollination.
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The eggs in the ovary
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The anther at the top of filament
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Female nuclei
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Male nuclei
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The pollen that settles on top of stigma
E
Correct answer
Explanation
Yes, it is the correct answer. When pollen settles on top of the stigma, it germinates to produce a pollen tube. The pollen tube enters the ovary through the style.
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Ovary
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Style
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Sepal
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Petal
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Stigma
E
Correct answer
Explanation
Yes, pollen settles on top of the stigma, it germinates to produce a pollen tube. The pollen tube enters the ovary through the style.
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Areolar
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Antigen
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Apical meristem
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Axon
C
Correct answer
Explanation
Apical meristem is the tissue at the tips of roots and stems where active cell division occurs, enabling growth in length. This region contains undifferentiated cells that can specialize into various plant tissues. Areolar tissue is loose connective tissue, antigens trigger immune responses, and axons are nerve fibers.
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Indian origin
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Chinese origin
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Russian origin
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Japanese origin
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Sporophylls are aggregated to form cones.
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The microspores and megaspores are produced by male and female cones.
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Vascular tissues such as xylem lacks vessels and pholem lacks companion cells.
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The ovules are not contained within an ovary.
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Endosperm cells are triploid.
E
Correct answer
Explanation
This is the correct option as this is a characteristics of Angiosperms.
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casuarina
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asparagus
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opuntia
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euphorbia
B
Correct answer
Explanation
Cladode is a type of phylloclade consisting of one internode only. These are cylindrical (not fleshy) and are mistaken for leaves
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cotton
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datura
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lilium
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ocimum
D
Correct answer
Explanation
Verticillaster is a complex inflorescence found in the Ocimum sanctum, a member of family Labiatae.