Biology · 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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Free lateral stipules
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Adnate stipules
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Intra-petiolar stipules
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Ochreate stipules
B
Correct answer
Explanation
These stipules get associated with the petioles of the leaves with the help of their inner margins, e.g. rose.
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hesperidium
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legume
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follicle
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siliqua
D
Correct answer
Explanation
It is a simple, dry, dehiscent fruit developing from the bicarpellary, monolocular ovary having 2 parietal placentae.
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bulbil
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cladodes
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stem thorn
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phylloclade
D
Correct answer
Explanation
It is defined as a flattened stem consisting of several internodes functioning as a leaf. In Opuntia, the stem is modified into a green flattened structure called phylloclade.
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thorn
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spine
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prickle
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spinescent
A
Correct answer
Explanation
It is a modified axillary bud, which is stiffened and terminates in a sharp point. It may be simple or branched.
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Cordate
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Acute
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Acicular
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Digitate
A
Correct answer
Explanation
These leaves are heart-shaped having a petiole or stem attached to the cleft of the leave.
D
Correct answer
Explanation
These are the modified plant structures adapted to store nutrients. They help the plants to survive in adverse climatic conditions. They are also the means of asexual reproduction in plants.
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Sagittate
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Rhomboid
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Reniform
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Spatulate
A
Correct answer
Explanation
These leaves are thick, broad & arrowhead-shaped.
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Epicotyl
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Hypocotyl
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Epigeal
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Fascicle
D
Correct answer
Explanation
It is defined as an array of leaves or flowers, or of the vascular tissues providing these organs with essential nutrients.
A
Correct answer
Explanation
It is either a hair or bristle-like protuberance on a larger structure, or in the case of the Asteraceae, a stiff needle-like element of the pappus. These are characteristics of grasses.
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Obconic
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Ocrea
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Orbicules
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Panicle
D
Correct answer
Explanation
It is a branched group of flowers in which the branches are racemes. It is a much-branched indeterminate inflorescence.
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Labellum
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Lemma
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Lignotuber
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Ligule
B
Correct answer
Explanation
It is a phytomorphological term used to describe a part of the spikelet of grasses. It is the lowermost of two chaff-like foliole surrounding the grass floret.
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propagative roots
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haustorial roots
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stranglers
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pneumatophores
B
Correct answer
Explanation
These roots are present in parasitic plants.The aerial roots get fixed to the host plant via a sticky attachment disc before introducing into the tissues of the host, e.g. Mistletoe.
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divaricate
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decurrent
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dehiscence
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drift seeds
A
Correct answer
Explanation
It is the process used in identifying plants describing the pattern of branching. Divaricate branching is roughly horizontal, usually only diverging about 15 degrees upward or downward.
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epiblem
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rhizosphere
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hartig net
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mycorrhiza
A
Correct answer
Explanation
It is a tissue that has replaced the epidermis in roots and in stems of submerged aquatic plants.
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root crown
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root invasion
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root nodules
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root stock
A
Correct answer
Explanation
It is defined as the part of root system from which a stem arises. It affects the plant growth and physiology in different ways.