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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Ectocarpus
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Fucus
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Polysiphonia
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Volvox
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Spirogyra
B
Correct answer
Explanation
Fucus is a diplontic alga.
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gymnosperms
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bryophytes
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angiosperms
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pteridophytes
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thallophytes
D
Correct answer
Explanation
Pteridophytes are called vascular cryptogams.
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They have structures similar to amphibians.
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They require a layer of water for carrying out sexual reproduction.
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They occur in damp places.
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They are mostly aquatic.
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All of the above.
B
Correct answer
Explanation
Bryophytes are called the amphibians because they require a layer of water for carrying out sexual reproduction. They grow in the moist places on land but they require water during the time of fertilization, i.e., for completion of life cycle.
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insects
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mosquitoes
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wind
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diseased tubers
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none of these
D
Correct answer
Explanation
Potato mosaic virus is generally transmitted by diseased tubers.
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Lignicolous - Wood
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Corticolous - Bark
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Saxicolous - Stones
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Terricolous - Soil
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None of these
E
Correct answer
Explanation
All above are correctly matched options hence, this is the correct option.
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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.
Match the following:
|
|
| a. Kingdom |
1. It is a group of species that are related and have less characters in common as compared to species. |
| b. Genus |
2. It is an assemblage of families resembling one another in a few characters. |
| c. Order |
3. It includes all organisms that share a set of distinguishing common characters. |
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a - 3, b - 1, c - 2
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a - 3, b - 2, c - 1
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a - 1, b - 2, c - 3
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a - 1, b - 3, c - 2
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a - 2, b - 1, c - 3
A
Correct answer
Explanation
This is the correct option. Kingdom includes all organisms that share a set of distinguishing common characters. Genus is a group of species that are related and have less characters in common as compared to species. Order is an assemblage of families resembling one another in a few characters.
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Only a and b
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Only a and c
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Only a and d
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Only b, c and d
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Only b and c
D
Correct answer
Explanation
Pinus, Cedrus and Ginkgo belong to the group Coniferae of division Gymnospermae.
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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. Sclerenchyma cells are dead cells and are devoid of protoplasm.
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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 as this is not a function of the vacuoles.
Match the following:
| |
|
| a. Leucoplasts |
1. They are the colourless plastids. |
| b. Chloroplasts |
2. They are the coloured plastids (except green-coloured). |
| c. Chromoplasts |
3. They are the green-coloured plastids. |
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a - 1, b - 2, c - 3
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a - 3, b - 1, c - 2
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a - 3, b - 2, c - 1
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a - 2, b - 3, c - 1
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a - 1, b - 3, c - 2
E
Correct answer
Explanation
This is the correct option. Leucoplasts are the colourless plastids. Chloroplasts are the green-coloured plastids. Chromoplasts are the coloured plastids (except green-coloured).
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synandrous
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syngenesious
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polyadelphous
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monadelphous
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diadelphous
D
Correct answer
Explanation
The filaments of stamens are fused to form one bundle, while anthers remain free, e.g. Hibiscus, Abutilon, etc.
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synandrous
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syngenesious
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polyadelphous
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diadelphous
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monadelphous
A
Correct answer
Explanation
Here, both filaments and anthers of the stamens are united throughout their length, e.g. Cucurbita, Lagenaria, etc.
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polyandrous
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gynandrous
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epiphyllous
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epipetalous
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episepalous
B
Correct answer
Explanation
In this case, the adhesion is between stamens and carpels. Anthers unite with stigma to form gynostegium, e.g. Calotropis.
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Only 1
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Only 2
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Both 1 and 2
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All of these
B
Correct answer
Explanation
The International Code of Botanical Nomenclature (ICBN) is the set of rules and recommendations dealing with the formal botanical names that are given to plants.