Chapter 5: Response in Plants
What you need to learn in this chapter
In this chapter, we will be learning about the response in plants. We will start by understanding the different types of plant responses, such as tropism and nasty. Tropism refers to the growth or movement of a plant in response to a stimulus, while nasty refers to non-directional responses.
Next, we will explore phytohormones, which are plant hormones that regulate plant growth and development. We will learn about different types of phytohormones, including auxin, gibberellin, cytokinin, abscisic acid, and ethylene. We will also discuss the functions of these hormones in plants. Lastly, we will study the application of phytohormones in agriculture. We will understand how these hormones are used to enhance plant growth, increase crop yield, and control fruit ripening. We will also conduct experiments to compare the effects of phytohormones on fruit ripening. By the end of this chapter, we will have a better understanding of how plants respond to their environment and the role of phytohormones in plant growth and development.
Topics in this chapter
1. Types of Responses
What you will learn in this topic
- Describe the types of plant responses: (i) tropism. (ii) nasty
2. Phytohormones
What you will learn in this topic
- Describes phytohormones
- State the function of phytohormones: (i) auxin. (ii) gibberellins. (iii) cytokinins. (iv) abscisic acid. (v) ethylene
- Make inferences about the effect of auxin on growth responses
- Explain the role of auxin in plant responses. (i) phototropism. (ii) geotropism
3. Application of Phytohormones in Agriculture
What you will learn in this topic
- Justify the usage of phytohormones in agriculture
- Experiment to compare the effects of fruit ripening in the presence of phytohormones
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