Biology
Plant Biology and Classification
1,796 Questions
Plant Biology and Classification deals with the taxonomy, evolution, and morphological features of the plant kingdom. This collection offers practice questions on plant groups, taxonomic hierarchies, and specific plant characteristics. The questions are tailored for students preparing for biology competitive exams.
Plant taxonomyPteridophytesAngiospermsPlant morphologyAlgae and bryophytesClassification systems
Plant Biology and Classification Questions
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The specific name comes first and then the generic name is given.
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The name of the genus begins with a capital letter.
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The name of the species begins with a small letter.
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When printed, the scientific name is given in italics.
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When written by hand, the genus name and the species name have to be underlined separately.
A
Correct answer
Explanation
This is incorrect. The binomial nomenclature states that the generic name comes first and then the specific name follows.
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Horsetails
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Ferns
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Club mosses
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None of the above
A
Correct answer
Explanation
Ans-1
All these plants belong to the group-Pteridophyta. They are found mainly in shady and damp places.
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Thallophyta
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Bryophyta
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Pteridophyta
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Gymnosperms
A
Correct answer
Explanation
Ans-1
The plant body is in the form of undivided thallus. It is not differentiated into stem, roots and leaves.
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xerophyte.
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hydrophyte.
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mesophyte.
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terrestrial plant.
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Traviranus
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Linnaeus
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Whittaker
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Johanson
C
Correct answer
Explanation
He was the first to propose the five kingdom taxonomic classification of the world's biota into Animalia, Plantae, Fungi, Protista and Monera in 1959.
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one name given by two different scientists
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two names in which one is Latinized and other of a person
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one scientific name consisting of a generic and a specific epithet
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two names in which one is scientific and other is local
C
Correct answer
Explanation
The term Binomial nomenclature means naming an organism by giving one scientific name consisting of a generic and a specific epithet.
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Blue spruce trees
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Cherry trees
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Ferns
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Liverwort
B
Correct answer
Explanation
Cherry trees belong to the Rosaceous family of plants and are native to regions around the Northern Hemisphere.It is a tree of the subgenus Cerasus, the members of which are valued agriculturally for their fruit, the cherry. The wood of the tree, cherrywood, is also valued in woodworking.
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The number of flower parts
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The arrangement of vascular tissue in the stem
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The size at maturity
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The pattern of veins in leaves
C
Correct answer
Explanation
Size varies from plant to plant.
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glucose
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starch
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chlorophyll
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none of these
C
Correct answer
Explanation
Chlorophyll is the green pigment found in autotrophic organisms that captures light energy for photosynthesis. It absorbs sunlight primarily in the blue and red wavelengths, reflecting green light which gives plants their characteristic color.
C
Correct answer
Explanation
Riccia, a liverwort (Marchantiophyta), has a simple thallus body in which the sex organs (archegonia and antheridia) are embedded. In mosses, ferns, and Azolla, the sex organs are more distinctly structured rather than embedded in the thallus.
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indusium
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apophysis
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strobilus
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sorus
D
Correct answer
Explanation
In ferns (Pteridophytes), a cluster or group of sporangia on the underside of a frond is called a sorus. The indusium is the protective covering over the sorus. Apophysis is part of the sporangium stalk, and strobilus is a cone-like structure in some plants.
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Figue fibre
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Uine fibre
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Siasal fibre
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Kapok fibre
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Coconut fibre
D
Correct answer
Explanation
It is obtained from seeds or seed cases.
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Mature stage
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Before beginning of flowering
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Any time after flowering
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Flowering stage
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When the plant is dried
B
Correct answer
Explanation
Yes, it is the correct answer because at this stage there is a decline in plant growth and the maximum fibre content can be achieved.
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Bryophyta
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Pteridophyta
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Thallophyta
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Gymnosperms
C
Correct answer
Explanation
Algae are traditionally classified under the division Thallophyta because they have a simple body structure called a thallus, lacking true roots, stems, and leaves. Bryophyta includes mosses, while Pteridophyta includes ferns.
B
Correct answer
Explanation
Mustard flowers typically have six stamens arranged in a tetradynamous condition, where four are long and two are short. This is a characteristic feature of the Brassicaceae (Cruciferae) family. This arrangement helps in the identification of plants within this family.