2TTO Ch5.1

During this lesson, we will move towards Chapter 5. You will get a short introduction, an overview of the chapter, and we will discuss the first paragraph.
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Slide 1: Tekstslide
BiologieMiddelbare schoolvwoLeerjaar 2

In deze les zitten 27 slides, met interactieve quizzen, tekstslides en 3 videos.

time-iconLesduur is: 45 min

Onderdelen in deze les

During this lesson, we will move towards Chapter 5. You will get a short introduction, an overview of the chapter, and we will discuss the first paragraph.

Slide 1 - Tekstslide

Lesson goals
  • You have an overview of Chapter 5
  • You can explain what reproduction is and what its function is
  • You can explain what hormones and glands are
  • You can explain what the difference is between sexual and asexual reproduction
  • You can explain what primary and secondary sexual characteristics are

Slide 2 - Tekstslide


Slide 3 - Tekstslide

  1. Reproduction and hormones
  2. The male reproductive system
  3. The female reproductive system
  4. The menstrual cycle
  5. Human fertilisation
  6. Pregnancy
  7. Childbirth
  8. Birth control
  9. Sexually transmitted infections

Slide 4 - Tekstslide

Message from your teacher..
As you can see, the book takes a very biological approach to reproduction. It mainly talks about what the reproductive system looks like (anatomy) and how it works (physiology). Normally, we would go into it a little deeper, and have discussions about many things (sexuality, consent, influences of culture, ...). Since that is a little bit difficult to do digitally, we will stick to the biological parts for now. When we get back to school, we can delve deeper into the other parts. Depending on how long we stay home, you might also receive links to certain videos to watch and think/write about.

Slide 5 - Tekstslide

  • First, we will go into what reproduction is, and what body parts are important 
  • Later on, we will discuss how all reproductive processes in our bodies work (menstruation, fertilisation, pregnancy, ...)
  • Afterwards, we will discuss how to prevent unwanted pregnancies, and how to keep your reproductive system healthy
  • As soon as you have a broad knowledge about the reproductive system, we will go into the more 'cultural' aspects of reproduction

Slide 6 - Tekstslide


Please note that we will go into some subjects deeper than the book does, so keep an eye on these lessons so you don't miss a thing!
I will indicate on the slide when there is something that is not in the book.

Slide 7 - Tekstslide


Slide 8 - Tekstslide

  • Reproduction (or procreation, breeding) = the biological process by which new individual organisms ("offspring") are produced from their "parents"
  • Without reproduction, there would not be as much life possible as we have now

Slide 9 - Tekstslide

Two types of reproduction:
  1. Sexual reproduction (two 'parents' --> one 'child')
  2. Asexual reproduction (one 'parent' --> one 'child')

For more info, see the video on the next slide (ignore the part about chromosomes and genetic variety, we will do that next year)
This is not discussed in the book, but still very important to know!

Slide 10 - Tekstslide

Slide 11 - Video

The reproductive system
Contains all the organs needed for an organism to be able to sexually reproduce. This system is regulated by hormones.

Slide 12 - Tekstslide

= regulatory substances that control processes in the body
  • They do that by giving signals to organs (messengers)
  • Produced by hormone glands from the endocrine system
  • Transported by the circulatory system to get them where they need to be
  • Effect can have a duration of hours up until months/years
Dutch for glands = klieren
Hormones are messengers. However, that was the task of the nervous system, right? The difference: the nervous system is for the fast messages (to help you feel and move), the hormones are for the slower messages (to help you grow and change). 

Slide 13 - Tekstslide

Sex hormones
  • Hormones that work in the reproductive system are called sex hormones
  • Some of those are different for males and females
  • Production of these leads to the differences between male and female bodies
  • This production happens in many stages of life!

Slide 14 - Tekstslide

Stages of life
During life, the body goes through several changes. Some of these changes have to do with sex hormones

Slide 15 - Tekstslide

Primary sexual characteristics
  • During the pregnancy, the sex hormones are responsible for the baby developing male or female reproductive organs.
  • The organs that are present at birth are called the primary sexual characteristics
  • Examples: penis, vagina, prostate, uterus, ...
This is not discussed in the book, but still very important to know!

Slide 16 - Tekstslide

Secondary sexual characteristics
  • When the child reaches puberty, sex hormones are produced to develop the secondary sexual characteristics. 
  • These are processes and structures that develop throughout puberty. When someone has developed everything, they have reached the end of puberty
  • Examples: menstruation, facial hair, lower voice, ...
This is not discussed in the book, but still very important to know!

Slide 17 - Tekstslide

Now to test if you understood this..
A few questions!

Slide 18 - Tekstslide

Explain what the difference is between sexual and asexual reproduction!

Slide 19 - Open vraag

Are the female ovaries a primary or a secondary sexual characteristic?

Slide 20 - Quizvraag

Is the development of pubic hair (click ? for Dutch) a primary or a secondary sexual characteristic?
Pubic hair = schaamhaar

Slide 21 - Quizvraag

Difficult question: One of the male secondary sexual characteristics is the development of more muscles. Explain how this can be (mis)used in professional sports in adult men and women.

Slide 22 - Open vraag

What do you think would happen if a female person would take male sex hormones for a longer period of time?

Slide 23 - Open vraag

That was it! Homework:
  • Take notes of this lesson, as well als everything in the book that we didn't mention here
  • Make questions 1-3
  • Read paragraph 5.2
  • Check your questions of chapter 4 with the answer sheet provided on SomToday

Slide 24 - Tekstslide

Extra information about Corona
If you want some more information about Corona as a virus, visit the following interview: https://decorrespondent.nl/11051/viroloog-marion-koopmans-beantwoordt-de-prangendste-vragen-over-corona-de-nederlandse-aanpak-en-wat-je-nu-kan-doen/5953219616905-ac45a492

Additionally, I have added two videos to give you some insight into why the '1,5m distance' and why you need to sneeze in your elbow!

Slide 25 - Tekstslide

Slide 26 - Video

Slide 27 - Video