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Gamete formation

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  • Additional HL/
  • HL Animal Physiology Activities for Learning/
  • Gamete formation

Spermatogenesis and Oogenesis.

A short review of mitosis, meiosis and cell differentiation begin this lesson which quickly moves on to outline the details of the processes of gametogenesis and spermatogenesis. In two final activities students make comparisons to learn the similarities and differences between these two processes.

Lesson Description

Guiding Questions

What type of cells are formed by meiosis?

How many daughter cells are there after meiosis?

How many chromosomes are there in each of the daughter cells?

Activity 1 - Recap Mitosis & Meiosis

Just a couple of slides to remind everyone of the basic details of mitosis and meiosis because both of these processes play a part in the process of spermatogenesis and oogenesis.

These simple review slides on mitosis and meiosis can be used as a recap of basic SL knowledge.

Activity 2 - Spermatogenesis - an outline

These simple spermatogenesis slides below outline the main steps in the process of spermatogenesis.

Activity 3 - Oogenesis - an outline

These simple Oogenesis slides outline the main steps in the production of egg cells (ova) by oogenesis.

Distance learning - Spermatogenesis and Oogenesis - sketch and tell activity

This format is inspired by #Eduprotocols. Students each produce one slide of a presentation in which they sketch a simple diagram, and the write a few key points about the process. Everyone works simultainiously and it is very easy for the teacher to watch all the slides. Simply select View, "Grid view" from the menu and it's possible to supervise all the slides, live, in one screen. 

To be able to share the slide set with a class, click the link to the Sketch and tell Gametogenesis Google presentation, click; File, Make a copy, All slides.  Then the presentation is copied into your own Google drive and you can share a link with your students. Remember to give students editing rights to the slides.

At the end of the activity it's useful to make time to present the slides to the class and ask each student to explain their slide. If the teacher prefers students can work in small groups, and edit one slide together.

Activity 4 - A comparison between spermatogenesis and oogenesis

Use the following worksheet Comparisons of spermatogenesis and oogenesis to identify the similarities and differences between the two processes. Record on the sheet any other points which you have noted in the activities on this webpage.

Teachers notes

The first activity is useful for revision of the outline details of mitosis, meiosis and cell differentiation. It may have been several months since students looked at these details. Another reason to cover them is that they are actually three similarities between spermatogenesis and oogenesis - both processes contain all three steps.

Activity two and three simply contain outline slides and brief notes about the two processes. They could be used as part of a teacher's explanation or students could be asked to present the slides. Alternatively they could be used as a task for students to complete before a lesson looking at microscope slides or comparing the two processes.

Activity four contains a more constructivist style activity for students to do with the outline information about spermatognesis and oogenesis. There is some space for students to record notes about the two processes on the worksheet.