About This Chapter
Plant Physiology: Growth & Nutrition - Chapter Summary
This chapter enables you to quickly and easily boost your knowledge of plant physiology. Explore fun lessons to gain greater insight into the mineral nutrition and mechanisms of plant growth. Topics covered in this chapter include seed germination, leaf abscission and vernalization. Upon completion, you will be able to do the following:
- List essential elements of the plant life cycle
- Discuss primary and secondary growth of plants
- Define and describe the process of seed germination
- Explain the function of apical meristem
- Exhibit knowledge of plant senescence and leaf abscission
- Describe the function of vascular cambium
- Share the definition of photoperiodicity and discuss daylight's influence on flowers
- Detail the process of vernalization
Choose any number of lessons to review based on your unique study needs and existing knowledge of plant physiology. Review the lessons in your sequence of choice, and visit them as many times as needed. If you develop questions while studying this chapter, feel free to send them to our experts via the Dashboard. Before, during or after reviewing the lessons, be sure to assess your plant physiology knowledge by taking short quizzes and the practice chapter exam.
1. Essential Elements of the Plant Life Cycle
The essential elements of the plant life cycle come in the form of macronutrients and micronutrients. Study a plant's composition, the essential elements, hydroponic culture, macronutrients and macronutrients, and mineral deficiency.
2. Primary Growth of Plants
Plants experience primary growth where the roots and stem make the plant taller, as well as horizontal, or secondary growth. Begin to recognize the different ways plants grow, and the different types of tissues involved.
3. Secondary Growth in Plants
Secondary growth in woody plants is important because their greater height requires more support. Explore the definition and process of secondary growth and how secondary growth helps woody plants flourish.
4. What is Seed Germination? - Definition, Process, Steps & Factors
Germination is the process of seeds, beginning to grow into plants through early development of roots, shoots, and leaves. See the steps in how the combination of resources, and several influencing factors, can cause a tiny seed to germinate into a living plant.
5. Apical Meristem: Definition & Function
In a plant's roots and shoot tips can be found a region of rapidly dividing cells known as apical meristem. Understand the definition and function of the apical meristem, how it relates to plant growth, what it is and what it does, examine what is produced by apical meristem, and what happens when it is damaged or removed.
6. Plant Senescence: Definition & Hormonal Regulation
In this lesson you will learn about senescence, the process of aging, in plants. In particular you'll look at the different hormones involved in the regulation of aging.
7. Leaf Abscission: Definition & Purpose
Leaf abscission is the process of plants shedding their leaves. Learn the process and reasons behind abscission by examining examples of plants that drop their leaves.
8. Vascular Cambium: Function & Definition
The vascular cambium is a cell that affects the growth of the stems, leaves, and roots of a plant. Discover the definition of the vascular cambium, its function, and learn what the three rings are in the core of a tree trunk.
9. Photoperiodicity: Short-day, Long-day and Day-Neutral Plants
Photoperiodism is an organism's response to the length of the day vs the length of the night. The length of daylight can affect the growth of a plant. Discover how plants are classified into short-day, long-day, and day-neutral plants based upon their exposure to daylight in this lesson.
10. Vernalization: Definition & Process
Certain plants have very specific growth requirements. In this lesson you'll learn about a process called vernalization, how it works in nature and how to achieve it artificially.
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