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Theoretical and Experimental Plant Physiology. We covered all the Theoretical and Experimental Plant Physiology mcq in this post for free so that you can practice well for the exam.
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mcq on Theoretical and Experimental Plant Physiology for Students
A student was conducting an experiment to enhance cell division in plants. To assist her, which plant hormone would be most appropriate to recommend?
(a) Abscisic Acid
(b) Gibberellins
(c) Cytokinin
(d) Auxin
Option c – Cytokinin
Which Acid is primarily present in tomatoes?
(a) Acetic Acid
(b) Tartaric Acid
(c) Oxalic Acid
(d) Lactic Acid
Option c – Oxalic Acid
In a germinating seed, which part of the embryo develops into the root?
(a) Radicle
(b) Plumule
(c) Cotyledon
(d) Epicotyl
Option a – Radicle
Leaves from which plant are commonly used for wrapping ‘beedis’?
(a) Cinchona
(b) Tendu
(c) Opium
(d) Areca
Option b – Tendu
What is the main chemical component found in cotton?
(a) Protein
(b) Fatty Acid
(c) Cellulose
(d) Glycerine
Option c – Cellulose
Which of the following legume plants also functions as a petro crop?
(a) Pigeon pea
(b) Pea
(c) Gram
(d) Pongamia
Option d – Pongamia
Pneumatophores, which help in gaseous exchange, are found in which type of plants?
(a) Mangrove plants
(b) Epiphytic plants
(c) Hydrophytic plants
(d) Insectivorous plants
Option a – Mangrove plants
What term is used for the beneficial symbiotic relationship between fungi and the roots of higher plants?
(a) Biofertilizer
(b) Coralloid root
(c) Lichen
(d) Mycorrhiza
Option d – Mycorrhiza
Which compound is the main active ingredient in clove oil?
(a) Menthol
(b) Eugenol
(c) Methanol
(d) Benzaldehyde
Option b – Eugenol
From which plant is the alkaloid noscapine extracted?
(a) Poppy
(b) Basil
(c) Eucalyptus
(d) Ephedra
Option a – Poppy
Which of the following is not classified as a carnivorous plant?
(a) Heliamphora sp.
(b) Drosera sp.
(c) Nepenthes sp.
(d) Thymus sp.
Option d – Thymus sp.
Which is considered the tallest land tree on Earth?
(a) Deodar
(b) Eucalyptus
(c) Sequoia
(d) Pine
Option c – Sequoia
Cloves, used in cooking, are obtained from which part of the plant?
(a) Seeds
(b) Fruits
(c) Flower buds
(d) Leaves
Option c – Flower buds
From which part of the plant is quinine sourced?
(a) Roots
(b) Stem
(c) Leaves
(d) Bark
Option d – Bark
If the xylem in a plant becomes obstructed, which process would be impacted?
(a) Transport of water only
(b) Movement of water and dissolved substances
(c) Transport of solutes only
(d) Gas exchange
Option b – Movement of water and dissolved substances
Which of the following signifies a stem modification in plants?
(a) Eyes on a potato
(b) Scales in an onion
(c) Tendrils in a pea
(d) Hair in a carrot
Option a – Eyes on a potato
What is released as a by-product during photosynthesis?
(a) CO₂
(b) O₂
(c) energy
(d) Sugar
Option b – O₂
Epiphytes rely on other plants for what purpose?
(a) Nutrition
(b) Physical support
(c) Shade
(d) Moisture
Option b – Physical support
Which category includes plants that thrive in saline environments?
(a) Xerophytes
(b) Hydrophytes
(c) Halophytes
(d) Lithophytes
Option c – Halophytes
What are plants that grow directly on rocky surfaces called?
(a) Mesophytes
(b) Lithophytes
(c) Sclerophytes
(d) Oxylophytes
Option b – Lithophytes
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