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Questions and Answers
Which of the following is a definition of plant growth?
Which of the following is a definition of plant growth?
What are the stages of plant development?
What are the stages of plant development?
What are the types of phytohormones?
What are the types of phytohormones?
Which hormone promotes cell division and differentiation in plants?
Which hormone promotes cell division and differentiation in plants?
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Which hormone is responsible for promoting shoot and bud development in plants?
Which hormone is responsible for promoting shoot and bud development in plants?
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Which hormone is responsible for initiating the ripening of fruits in plants?
Which hormone is responsible for initiating the ripening of fruits in plants?
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Which hormone regulates the adaptation to drought in plants?
Which hormone regulates the adaptation to drought in plants?
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Which of the following is the natural auxin?
Which of the following is the natural auxin?
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What is the effect of auxin called when the shoot grows towards light?
What is the effect of auxin called when the shoot grows towards light?
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What is the process of cells developing different forms adapted to specific functions called?
What is the process of cells developing different forms adapted to specific functions called?
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What is the ability of an individual cell to reconstitute the entire plant part and functions called?
What is the ability of an individual cell to reconstitute the entire plant part and functions called?
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Which of the following is NOT a physical defense mechanism that plants use against herbivores?
Which of the following is NOT a physical defense mechanism that plants use against herbivores?
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What is the purpose of PAMP recognition in plants?
What is the purpose of PAMP recognition in plants?
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What is the main function of effector triggered immunity in plants?
What is the main function of effector triggered immunity in plants?
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What is the difference between PAMP-triggered defense and effector-triggered defense?
What is the difference between PAMP-triggered defense and effector-triggered defense?
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Study Notes
Plant Growth and Development
- Plant growth is the irreversible increase in size of a plant, resulting from cell division and expansion.
- The stages of plant development include:
- Seed germination
- Seedling establishment
- Vegetative growth
- Reproductive growth
- Senescence
Phytohormones
- Phytohormones are plant hormones that regulate plant growth and development.
- Types of phytohormones include:
- Auxins
- Gibberellins
- Cytokinins
- Ethylene
- Abscisic acid
Functions of Phytohormones
- Auxins promote cell division and differentiation in plants.
- Auxins are responsible for promoting shoot and bud development in plants.
- Ethylene is responsible for initiating the ripening of fruits in plants.
- Abscisic acid regulates the adaptation to drought in plants.
Auxin
- Indole-3-acetic acid (IAA) is the natural auxin.
- The effect of auxin when the shoot grows towards light is called phototropism.
Cellular Development
- The process of cells developing different forms adapted to specific functions is called cellular differentiation.
- The ability of an individual cell to reconstitute the entire plant part and functions is called totipotency.
Plant Defense Mechanisms
- Physical defense mechanisms that plants use against herbivores include:
- Spines
- Thorns
- Hairs
- Trichomes
- The exception is: Rhizome (Rhizome is a type of underground stem, not a defense mechanism)
- PAMP recognition in plants is the ability to recognize and respond to pathogen-associated molecular patterns (PAMPs).
- The purpose of PAMP recognition is to trigger an immune response against pathogens.
Plant Immunity
- The main function of effector-triggered immunity in plants is to provide specific resistance to pathogens.
- The difference between PAMP-triggered defense and effector-triggered defense is:
- PAMP-triggered defense is a general defense response against pathogens.
- Effector-triggered defense is a specific defense response against particular pathogens.
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Description
Test Your Knowledge on Plant Growth Regulators and Seed Dormancy
