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NEET Exam  >  NEET Tests  >  Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - NEET MCQ

Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - NEET MCQ


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10 Questions MCQ Test - Test: Physiological Effects of Plant Growth Inhibitors (July 20 )

Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) for NEET 2024 is part of NEET preparation. The Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) questions and answers have been prepared according to the NEET exam syllabus.The Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) below.
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Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 1
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What is the primary function of abscisic acid in plants?

Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 1
Abscisic acid primarily inhibits seed germination. It plays a crucial role in maintaining seed dormancy and preventing premature germination. This allows seeds to withstand adverse conditions until favorable conditions for growth are present.
Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 2
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What is the primary function of ethylene in promoting plant growth?

Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 2
Ethylene plays a significant role in inducing flowering in many plants. It is involved in the transition from vegetative growth to reproductive growth, promoting the development of flowers.
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Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 3
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Which plant hormone is known as the "stress hormone"?

Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 3
Abscisic acid is often referred to as the "stress hormone" because it helps increase a plant's tolerance to various types of stress, such as drought and salinity. It helps plants adapt and survive under challenging environmental conditions.
Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 4
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Which plant hormone is commonly used to stimulate the ripening of tomatoes and citrus fruits?
Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 4
Ethylene is widely used to stimulate the ripening of fruits, including tomatoes and citrus fruits. It promotes the conversion of starches to sugars and softens the fruit, making it ripe and ready to eat.
Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 5
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How does ethylene affect the ripening of fruits?
Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 5
Ethylene enhances the respiration rate during the ripening of fruits. This increased respiration leads to the conversion of starches to sugars and other metabolic changes, ultimately resulting in fruit ripening.
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What is the main function of abscisic acid in regulating abscission?
Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 6
Abscisic acid is involved in regulating abscission, which is the process of leaf and fruit detachment from a plant. It helps initiate the abscission process by signaling the cells to weaken and break at the abscission zone.
Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 7
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Which plant hormone promotes the sprouting of potato tubers?
Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 7
Ethylene promotes the sprouting of potato tubers. It plays a role in breaking the dormancy of buds and tubers, allowing them to grow into new shoots and plants.
Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 8
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What is the primary function of abscisic acid in relation to stomata?
Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 8
Abscisic acid stimulates the closure of stomata in the epidermis. This helps plants conserve water and reduce transpiration, especially in response to water stress conditions.
Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 9
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What physiological process is influenced by ethylene in the senescence of flowers and leaves?
Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 9
Ethylene accelerates the senescence (aging) of both flowers and leaves.It promotes the breakdown of chlorophyll and other cellular components, leading to the wilting and deterioration of plant tissues as they age.
Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 10
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Which plant hormone is applied to rubber trees to stimulate the flow of latex?
Detailed Solution for Test: Physiological Effects of Plant Growth Inhibitors (July 20 ) - Question 10
Ethylene is applied to rubber trees to stimulate the flow of latex, which is the milky fluid that contains rubber. Ethylene induces latex production and flow from rubber trees.
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