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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Allogamy
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Antogamy
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Chasmogamy
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Cleistogamy
D
Correct answer
Explanation
Cleistogamy is a type of self-pollination in which the flower never opens, ensuring pollination occurs within the closed bud.
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Endodermis
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Epidermis
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Root cortex
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None of these.
B
Correct answer
Explanation
The epidermis is the outermost layer of cells in plant roots, responsible for protection and water absorption.
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Endodermis
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Epidermis
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Root cortex
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None of these.
C
Correct answer
Explanation
The root cortex is the tissue layer located between the epidermis and the endodermis, primarily involved in storage.
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endodermis
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epidermis
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root xylem
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none of these
C
Correct answer
Explanation
Xylem tissue located within the root structure is specifically referred to as root xylem.
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endodermis
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epidermis
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root cortex
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none of these
A
Correct answer
Explanation
The endodermis is the innermost layer of the cortex in plant roots, which surrounds the vascular cylinder (stele).
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Leaves
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Flower
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Shoot and roots
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All of the above
D
Correct answer
Explanation
Plants grow through various parts, including the shoot system (stems, leaves, flowers) and the root system. Therefore, all of the listed parts are involved in the growth process.
C
Correct answer
Explanation
In flowering plants, the ovule is the structure that develops into a seed after fertilization. The ovary develops into the fruit.
D
Correct answer
Explanation
In flowering plants, the ovary is the part of the flower that matures into the fruit after fertilization. The ovule becomes the seed.
A
Correct answer
Explanation
Wood is the secondary xylem tissue that forms the bulk of the stem in woody plants.
B
Correct answer
Explanation
Starch is a carbohydrate stored in plants, and leaves are the primary site of photosynthesis where starch is produced and stored. While other parts like stems or seeds can store starch, leaves are the most direct answer in a general botanical context.
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Conductive tissues
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Naked embryo
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Well differentiated reproductive tissues
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Well differentiated plant body
C
Correct answer
Explanation
Well differentiated reproductive tissues is not a characteristic feature of Pteridophytes.
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Flowers of monocots are pentamerous whereas flowers of dicots are trimerous.
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Leaves of monocot show parallel venation whereas leaves of dicots show reticulate venation.
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Roots of monocots are adventitious whereas roots of dicots are fibrous.
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Vascular bundles in the stem of monocots are arranged in a ring whereas in the stem of dicots they are scattered.
B
Correct answer
Explanation
This is true. Leaves of monocot show parallel venation whereas leaves of dicots show reticulate venation.
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Stamen
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Petal
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Carpel
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Sepal
C
Correct answer
Explanation
Megasporophyll is the female sexual part which is equivalent to carpel or pistil.
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Reduced or poorly developed roots
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Deep roots
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Fibrous roots
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Well developed root system
A
Correct answer
Explanation
Hydrilla is an aquatic plant, i.e. it lives in water. Function of roots is to hold the plant in the soil and to absorb water from the soil. Since both these requirements get reduced in aquatic plants, so hydrilla has got poorly developed roots.
B
Correct answer
Explanation
Potato is a plant which grows vegetatively i.e. from part other than flower or seed. Potato grows from the eye on potato which develops into bud finally giving rise to new plant.