Ch 27: Praxis Biology: Plant Reproduction & Growth

About This Chapter

See how our video lessons and quizzes can help you understand plant reproduction and growth. Learn about the life-cycles of flower- and seed-producing plants, ferns and mosses while preparing for the Praxis Biology test.

Praxis Biology: Plant Reproduction and Growth - Chapter Summary

Use the lessons in this chapter to guide your study of plant reproduction and growth as you prepare for the Praxis Biology exam. Among other areas, the instructors will cover the following subjects, which can help you answer the topic-specific questions correctly.

  • Alternation of generations: the gametophyte and sporophyte stages of plant development
  • Plant reproduction with naked seeds and without flowers or seeds
  • Asexual plant reproduction through bulbs and vegetative propagation
  • Tropisms: the biological process by which plants grow and turn, including geotropic, phototropic and thigmotropic
  • Photoperiodicity and day-neutral, long-day and short-day plants
  • Seasonal growth cycles of annuals, biennials and perennials
  • Plant hormones: controlling growth and reproduction with chemicals
  • Storage of cellulose, starch and other molecules in plastids, tubers and vacuoles

These and other related topics will be covered in short and engaging video lessons, which can provide you with a guided course of study as you prepare for the Praxis Biology exam. Taught by authoritative and experienced instructors, each tutorial is accompanied by a lesson summary and online self-assessment quiz.

Objectives of the Praxis Biology Test: Plant Reproduction and Growth Course

The purpose of the Praxis Biology test is to evaluate a prospective teacher's readiness for teaching secondary school biology. Questions concerning animal, life and plant diversity account for 30% or the majority of the questions on the test. All of the questions are multiple choice, and the exam can be taken on a computer or on paper.

In general, the test covers the same topics you might have learned in lower-level, college biology courses. As a secondary school biology teacher, you will be expected to have an advanced knowledge of the subject, so you may find some of the questions to be more difficult in nature. To help you prepare, the quizzes on plant reproduction and growth are similar in content and form to those you'll find on the actual test.

10 Lessons in Chapter 27: Praxis Biology: Plant Reproduction & Growth
Test your knowledge with a 30-question chapter practice test
Alternation of Generations: The Gametophyte and Sporophyte

1. Alternation of Generations: The Gametophyte and Sporophyte

Even though many plants seem simple, they often have very complex life cycles. We will look at how plants alternate between different life stages as well as the terms used to describe these unique points in their life cycle.

A Moss Life Cycle: Dominant Gametophyte

2. A Moss Life Cycle: Dominant Gametophyte

Mosses are unique because they spend most of their lives with only one set of genetic material rather than the normal two sets. We will look at this cycle and how the alternation of generations takes place in these non-vascular plants.

A Fern Life Cycle: Plant Reproduction Without Flowers or Seeds

3. A Fern Life Cycle: Plant Reproduction Without Flowers or Seeds

Ferns are able to reproduce without using seeds. We will look at how ferns reproduce as well as the pattern of alternating between diploid and haploid life stages.

A Gymnosperm Life Cycle: Reproduction of Plants with 'Naked Seeds'

4. A Gymnosperm Life Cycle: Reproduction of Plants with 'Naked Seeds'

Some plants, such as pine trees, are able to reproduce with unprotected seeds. We will look at the major structures involved in this form of alternation of generations in gymnosperms.

An Angiosperm Life Cycle: Flowering Plant Reproduction

5. An Angiosperm Life Cycle: Flowering Plant Reproduction

When you think of how plants reproduce, you probably think of flowers. We will look at how flowering plants use specialized reproductive structures to complete an alternation of generations life cycle.

Asexual Plant Reproduction: Vegetative Propagation and Bulbs

6. Asexual Plant Reproduction: Vegetative Propagation and Bulbs

Not all plants make attractive flowers in order to reproduce. Some plants will not make seeds and pollen either. These plants have other ways to create new offspring. We will look at a few key methods of vegetative propagation.

Tropisms: Phototropic, Geotropic and Thigmotropic Plant Growth

7. Tropisms: Phototropic, Geotropic and Thigmotropic Plant Growth

Animals aren't the only things that can respond to the environment. While plants may seem inanimate at times, they, too, can respond to the environment in order to better survive.

Photoperiodicity: Short-day, Long-day and Day-Neutral Plants

8. Photoperiodicity: Short-day, Long-day and Day-Neutral Plants

Ever wonder why some plants will bloom in the spring but others in the summer? The length of daylight can influence when a flower will bloom. We will look at how the amount of sunlight regulates when plants produce flowers.

Seasonal Growth Cycles: Perennial, Annual and Biennial Plants

9. Seasonal Growth Cycles: Perennial, Annual and Biennial Plants

We continue to grow and change throughout our entire lives, living through many seasons and years. Plants have different patterns of growth and development regarding seasons, which we will look at in this lesson.

Plant Hormones: Chemical Control of Growth and Reproduction

10. Plant Hormones: Chemical Control of Growth and Reproduction

We most often think of hormones as things that control our actions and development. However, even plants have these chemicals to help regulate growth and reproduction.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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