Module 3S1 Reproductive Systems

Get Focused

In order for reproduction and perpetuation of the species to occur, functional gametes must be formed. To form functional gametes, supporting structures must help develop and protect the sperm and egg cells. For most couples these structures function as they should. However, for some couples these supporting structures do not function well or at all, and problems with fertility can occur. Ultimately, infertility is a result of an abnormality in either the sperm or the egg, or the body’s ability to support conception to birth.

A sperm analysis determines certain characteristics of semen and the sperm contained within the semen. An abundance of abnormalities with the sperm can result in a reduced fertility rate. Sperm must be developed correctly to successfully complete their function of fertilizing an egg cell. To gain a better appreciation of what a sperm analysis examines and how its findings indicate fertility issues, it is important to understand how gametes, both sperm and egg cells, are developed.

In Lessons 1 and 2 you learned that sperm, the functional unit of the male reproductive system, are developed and matured in the testes and that the ovum, the functional unit of the female reproductive system, is produced and matured in the ovaries. In Lesson 3 you will further your understanding of gametes development—first the sperm and then the ovum. You will investigate the following focusing questions:

• How do sperm and egg cells develop into functional gametes?
• What supporting structures help in the development of a fully functional gamete?

Module 3: Section 1—Lesson 3 Assignment

     Once you have completed the learning activities for this lesson, you can complete the online assignment.

Bio30 2.3.3.S1 online assignment

.

Here is a tutorial video for this lesson that you can watch if it suits your learning style.  Bio30 2.3.3S1 Gamete Development