Ch 26: Praxis Biology: Plant Biology

About This Chapter

Let us provide you with an understanding of plant biology, including major plant types and the structure and function of their primary organs and tissues. The purpose of these video lessons and self-assessment quizzes is to help you answer the questions on the Praxis Biology test correctly.

Praxis Biology: Plant Biology - Chapter Summary

This chapter is designed to help you prepare for the plant biology section of the Praxis Biology exam. It includes information about the following topics, which can provide you with the background you need to answer related questions on the test with confidence.

  • Classification of dicot, monocot, nonvascular and vascular plants
  • Structure of leaves and plant stems, including layers and tissues
  • Primary and secondary shoot system growth of the apical and lateral meristems or tissues
  • Primary root tissue and root system growth
  • The significance of nitrogen fixation to humans and plants
  • Xylem and the effects of cohesion and transpiration on function
  • Phloem or the pressure flow hypothesis of food movement
  • The structure and function of the female and male components of flowers
  • Flower pollinator relationships and methods of pollination

The instructor will discuss these topics in brief video lessons, using illustrated examples to help you understand how flowers and plants develop and thrive. Each video lesson is accompanied by a lesson summary that can help you prepare for the Praxis Biology exam.

Objectives of the Praxis Biology Exam: Plant Biology Course

The purpose of the Praxis Biology exam is to determine how ready prospective teachers are to teach biology at the secondary school level. It is available in a computer- or paper-based format and is composed of 150 multiple choice questions. Approximately 30% of the exam consists of questions related to animals, life and plants.

Both the content and the structure of the test reflect standards established by the National Science Education Standards and the National Science Teacher Association, and the subject matter is typically found in college level biology courses offered at the introductory level. In preparation for the exam, each of the plant biology chapters is followed by a quiz and the opportunity to see how well you absorbed the material. These questions are similar to the ones you'll find on the exam.

12 Lessons in Chapter 26: Praxis Biology: Plant Biology
Test your knowledge with a 30-question chapter practice test
Classification of Vascular, Nonvascular, Monocot & Dicot Plants

1. Classification of Vascular, Nonvascular, Monocot & Dicot Plants

Plants may not seem like the most interesting things around, but they are definitely useful. In this lesson, we will explore the basic classification of plants and the unique characteristics of each group.

Structure of Plant Stems: Vascular and Ground Tissue

2. Structure of Plant Stems: Vascular and Ground Tissue

You can determine the age of a tree by looking at its rings. In this lesson, we will look at the basic structures of stems and explore what causes the rings in a tree trunk.

Apical Meristem & Primary Shoot System Growth

3. Apical Meristem & Primary Shoot System Growth

Just like humans, plants need to grow. In this lesson, you'll see how plant growth occurs at specific locations and how the height of the plant is increased.

Lateral Meristem & Secondary Shoot System Growth

4. Lateral Meristem & Secondary Shoot System Growth

Why do some plants experience a secondary growth? Why do some plants grow only in height but others grow in height and width? Discover the answers to these questions in this lesson.

Structure of Leaves: The Epidermis, Palisade and Spongy Layers

5. Structure of Leaves: The Epidermis, Palisade and Spongy Layers

Leaves may look pretty in the fall when they are changing colors, but they also provide many necessary functions for plants. In this lesson, we will explore the structures and functions of leaves.

Primary Root Tissue, Root Hairs and the Plant Vascular Cylinder

6. Primary Root Tissue, Root Hairs and the Plant Vascular Cylinder

Roots of plants can provide support, food and water. We will look at diagrams and photos to see the different parts of roots in order to explain these different functions.

Root System Growth: The Root Cap, Primary Roots & Lateral Roots

7. Root System Growth: The Root Cap, Primary Roots & Lateral Roots

It is easy to see some plants get taller, but it is important to know that plants must also have a strong support that we cannot always see. Root growth helps plants survive and can happen in two ways.

Nitrogen Fixation: Significance to Plants and Humans

8. Nitrogen Fixation: Significance to Plants and Humans

Almost 80% of our atmosphere is nitrogen, but we can't use it. We will look at how this unusable nitrogen is converted into a form we can use and why nitrogen is important to plants and humans.

Xylem: The Effect of Transpiration and Cohesion on Function

9. Xylem: The Effect of Transpiration and Cohesion on Function

Roots absorb water and leaves release water, but how does water move up a plant? In this lesson, we will look at how this happens in vascular plants, including the importance of xylem, cohesion and transpiration in the process.

Phloem: The Pressure Flow Hypothesis of Food Movement

10. Phloem: The Pressure Flow Hypothesis of Food Movement

Leaves produce sugars and stems; roots and fruits use these sugars for energy. In this lesson, we will look at how these sugars move throughout vascular plants, including the importance of phloem and the pressure flow hypothesis in the process.

Flowers: Structure and Function of Male & Female Components

11. Flowers: Structure and Function of Male & Female Components

In this lesson, we'll look at the parts of a flower and learn their functions. These natural beauties provide indispensable services to the plants they adorn.

Methods of Pollination and Flower-Pollinator Relationships

12. Methods of Pollination and Flower-Pollinator Relationships

Ever wonder why bees are attracted to specific flowers? We will look at why certain animals are drawn to certain plants and other methods of pollination in this lesson.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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