Biology ยท 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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Pollen
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Pollen tube
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pistil
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sepals
C
Correct answer
Explanation
Pistil is centrally located and is female reproductive part of flower.
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Petiole
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Lamina
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Leaf margin
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Leaf Base
D
Correct answer
Explanation
The leaf base is the slightly expanded area where the leaf attaches to the stem
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Sepals
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Petals
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Stamens
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Leaves
D
Correct answer
Explanation
Leaves are not the part of flowers
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Sepals
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Pistil
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Petals
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Stamens
B
Correct answer
Explanation
Pistil is centrally located and is female reproductive part of flower.
B
Correct answer
Explanation
Flowers increase beauty of the plants.
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Roots
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Apical Buds
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Axillary Buds
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Stem
C
Correct answer
Explanation
Axillary bud lies at the junction of the stem and petiole of a plant.
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betel
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chestnut
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jussiaea
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pea
C
Correct answer
Explanation
Respiratory roots are found in jussiaea.These roots are white and spongy filled with air that keep plants floating.
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Pneumatophores
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Rhizoids
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Stomata
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Lenticels
A
Correct answer
Explanation
Pneumatophores are called breathing roots. These are the roots found above the ground.
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arbor vitae
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arborial
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archenteron
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aerole
A
Correct answer
Explanation
Arbor vitae is a branched tree-like structure present in cerebellum.
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Superficial
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Pendulous
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Lamellar
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Basal
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Free central
A
Correct answer
Explanation
Presence of multicapellary, syncarpous and multilocular gynoecium. The ovules are borne all over the inner surface of the ovary. Superficial placentation is also known as the laminar placentation. This type of placentation is observed in Nymphaeceae and Butomaceae.
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Determinate inflorescence
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Single Terminal Flower Inflorescence
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Indeterminate inflorescence
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Racemose inflorescence
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Panicle inflorescence
B
Correct answer
Explanation
It is a type of extreme inflorescence where there is no branching and complete determinacy is seen. For e.g., magnolia.
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Root buttresses
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Clinging roots
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Climbing roots
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Stilt Roots
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Prop roots
A
Correct answer
Explanation
Some trees have great plant-like roots that radiate from the base of the stem of the tree. It consists of partly root and partly stem. For e.g., Bombax.
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Corymb
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Spadix
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Compound umbel
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Catkin
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Spike
E
Correct answer
Explanation
Spike inflorescence has a long peduncle, which bears a number of sessile flowers in acropetal succession. For e.g., amaranthus.
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Phyllodes
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Tendrils
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Spines
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Scales
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Needles
D
Correct answer
Explanation
In most of the desert plants, leaves are reduced and they appear as scales. The scale are thin, dry, membranous, stalk-less. This modification is evolved in order to minimise the rate of transpiration. For e.g., Incense Cedar, Western Red Cedar.
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Tendrils
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Thorns
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Phylloclade
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Cladodes
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Bulbil
E
Correct answer
Explanation
Bulbil is a special multicellular body essentially meant for reproduction. In Agave the floral buds are modified into bulbils. These bulbils get detached, come in contact with the soil and develop into new plants. In Dioscorea the axillary bud develops into a bulbil. This bulbil detaches from the mother plant and grows up into a new independent one.