Biology ยท Science General
Botany and Plant Science
4,989 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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Meristem protection
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Gravity perception
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Mucilage secretion
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Starch granules storage
B
Correct answer
Explanation
Statocytes are involved in gravity perception in plants.
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Collenchyma cells
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Parenchyma cells
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Sclerenchyma cells
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None of these
B
Correct answer
Explanation
Root cap has parenchymatous multicellular structure.
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Tinospora
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Cascuta
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Screw pine
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Pistia
C
Correct answer
Explanation
Screw pine bears multiple root cap.
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some aquatic plants
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some parasitic plants
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some xerophytic plants
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some insectivorous plants
B
Correct answer
Explanation
Root cap is absent in some parasitic plants.
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They develop from surface of the parent root.
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They develop independently of the main root.
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They develop from the interior of the root.
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Multiple root branches develop from a single cell.
C
Correct answer
Explanation
Root branches develop from the interior of the parent root.
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Primary root
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Radicle
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Leaf or stem
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Flower
C
Correct answer
Explanation
Adventitious roots develop from leaves or stem.
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Zone of elongation
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Zone of cell division
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Root hair zone
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Permanent zone
B
Correct answer
Explanation
Zone of cell division is essential for the growth of root.
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Terminally
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Sub-terminally
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Laterally
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At origin
B
Correct answer
Explanation
The growth point of roots is sub-terminal.
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protected by root cap
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a layer of active growth
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covered by numerous hair
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responsible for increase in length
C
Correct answer
Explanation
Piliferous layer of the root is covered with numerous hair.
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root hairs
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root branches
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root cap
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primary root
C
Correct answer
Explanation
Calyptrogen helps in the formation of root cap.
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basal
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free central
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parietal
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marginal
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axile
B
Correct answer
Explanation
This placentation involves the presence of multicarpellary, syncarpous and unilocular gynoecium. The ovules are borne on a central column arising from the base. For example, Portulacaceae and Primulaceae.
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filiform sclereids
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astrosclereids
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macrosclereids
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osteosclereids
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brachysclereids
D
Correct answer
Explanation
These are bone-like or columnar with swollen ends. For example: Sub-epidermal covering of legume seeds.
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prophyll tendrils
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stem tendrils
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leaf tip tendrils
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leaflet tendrils
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stipular tendril
C
Correct answer
Explanation
The tendrils develop from the apex of the developing leaf, as in Gloriosa. This type of leaf apex is known as the cirrhose.
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Crustose
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Foliose
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Fruticose
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Leprose
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Squamulose
D
Correct answer
Explanation
A leprose lichen is a lichen with a powdery or granular surface. Leprose lichens lacks an outer skin or cortex.
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Lichens come in many colours.
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A lichen is made up of a simple photosynthesising organism.
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The fungus is called a mycobiont.
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A lichen is a composite organism.
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The fungal partner protects the algae.
E
Correct answer
Explanation
The algal partner protects the fungal partner by retaining water, serving as a larger capture area for mineral nutrients and in some cases, provides minerals obtained from the substrate.