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Ch 15: Developmental Biology

About This Chapter

Strengthen your understanding of developmental biology with help from the study tools in this online chapter. Review short lessons and take multiple-choice quizzes to improve your comprehension and enhance your ability to excel on an upcoming test.

Developmental Biology - Chapter Summary

Feel confident that you have a quality understanding of developmental biology using this chapter's entertaining lessons. Study fertilization, early embryonic development, the placenta and much more. Upon completion of this chapter, you will be able to do the following:

  • Define and discuss processes of fertilization and zygote formation
  • Explain oocyte activation and cell cleavage in the fertilization process
  • Discuss early embryonic development and morula and blastula formation
  • List and describe hormones of the placenta
  • Describe the origins, uses and properties of embryonic and adult stem cells

Each lesson in this chapter is available to view in two formats: videos and transcripts. Watch videos to study developmental biology concepts in a fun visual format, and access transcripts to study the lessons as texts that you can read online or print. Check your understanding of the lessons you review by taking short quizzes. A practice exam is available to assess your comprehension of the entire chapter.

5 Lessons in Chapter 15: Developmental Biology
Test your knowledge with a 30-question chapter practice test
Fertilization and Zygote Formation: Definition and Processes

1. Fertilization and Zygote Formation: Definition and Processes

Follow the male's sperm and the female's egg on their way to meet each other in this lesson that takes you through the process of fertilization in humans. Learn about the obstacles the sperm must get through before it can fertilize the egg.

Fertilization: Oocyte Activation & Cell Cleavage

2. Fertilization: Oocyte Activation & Cell Cleavage

When is the exact moment of fertilization? Learn the answer in this lesson. We'll look at what happens after the sperm penetrates the outer layers of the oocyte during the process of fertilization.

Early Embryonic Development: The Morula and Blastula

3. Early Embryonic Development: The Morula and Blastula

This lesson on the early stages of mammalian development covers the processes following fertilization, such as cleavage, the morula formation and blastula formation. Watch to learn what the inner cell mass, trophoblast cells and blastocyst are, as well as their functions within embryonic development.

Hormones of the Placenta: Estrogen, Progesterone & hCG

4. Hormones of the Placenta: Estrogen, Progesterone & hCG

The placenta is an endocrine gland that is only present during pregnancy. In this lesson, you will learn about the hormones it produces, including human chorionic gonadotropin (hCG), progesterone, estrogen, and human placental lactogen (hPL).

Embryonic and Adult Stem Cells: Uses, Origins & Properties

5. Embryonic and Adult Stem Cells: Uses, Origins & Properties

How can we grow a brand new windpipe? Or a heart? In this lesson, we'll learn about embryonic and adult stem cells and how scientists are using them to give people a new lease on life.

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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