In deze les zitten 24 slides, met interactieve quizzen, tekstslides en 2 videos.
Lesduur is: 90 min
Onderdelen in deze les
Paragraph 5.5 fertilisation
Slide 1 - Tekstslide
Planning
Lesson goals
Review question about the previous lessons
Videos and explanation + questions in Lessonup
End of class + homework for next week
Slide 2 - Tekstslide
Lesson goals
At the end of this lesson you know:
How human fertilisation works
What the difference is between fraternal twins and identical twins
Slide 3 - Tekstslide
Which system regulates hormones?
A
Reproductive system
B
Endocrine system
C
Nervous system
D
Digestive system
Slide 4 - Quizvraag
Which gland produces hormones to start the production of reproductive cells?
A
Pituitary gland
B
Ovaries
C
Hypothalamus
D
Thyroid gland
Slide 5 - Quizvraag
Which of the following is not a part of the male reproductive system
A
Penis
B
Testes
C
Uterus
D
Scotum
Slide 6 - Quizvraag
In which part of the female reproductive system do the egg cells develop?
A
Fallopian tube/Oviduct
B
Ovaries
C
Uterus
D
Vagina
Slide 7 - Quizvraag
In which part of the female reproductive system does the fertilised egg cell grow into a baby?
A
Fallopian tube/Oviduct
B
Ovaries
C
Uterus
D
Vagina
Slide 8 - Quizvraag
What regulates the menstrual cycle?
A
Enzymes
B
Hormones
C
Menopause
D
Blood flow
Slide 9 - Quizvraag
Link the hormone to the function!
Finishing the uterus lining
Developing the egg
Development of uterus lining
Causing ovulation
Oestrogen
Progesterone
FSH
LH
Slide 10 - Sleepvraag
Human fertilisation
Fertilisation = the union of a human egg and sperm cell
The result of fertilisation is a fertilised egg cell, which contains the genetic information from the male (via the sperm cell) and the female (via the egg cell)
When one sperm cell succesfully entered the egg cell, then the membrane of the egg cell undergoes changes so no other sperm cell is able to enter the egg cell anymore
Fertilisation = bevruchting
Slide 11 - Tekstslide
Fertilised egg
A fertilised egg cell is called a zygote
A zygote divides many times, creating a lot of cells containing the same hereditary information
The zygote (containing many cells) eventually implant in the uterus lining
Slide 12 - Tekstslide
Slide 13 - Video
What is fertilisation?
A
The release of the egg cell from the ovaries
B
The dividing of the zygote
C
Implantation of the zygote into the uterus wall
D
The union of an egg cell and sperm cell
Slide 14 - Quizvraag
The ovaries release a(n) ... egg
A
Fertilised
B
Unfertilised
Slide 15 - Quizvraag
The inner lining of the uterus is released when an egg is fertilised
A
True
B
False
Slide 16 - Quizvraag
A zygote contains the chromosomes (genetic information) of the male and the female
A
True
B
False
Slide 17 - Quizvraag
Twins
Sometimes two egg cells ovulate from the two ovaries at the same time -> two egg cells may be fertilised -> two different zygotes -> fraternal twins
One egg cell ovulate from the ovary -> one egg cell may be fertilised -> sometimes the zygote divides into two different groups of cells -> identical twins
Fraternal twins = Twee-eiige tweeling
Identical twins = Een-eiige tweeling
Slide 18 - Tekstslide
Slide 19 - Video
What is the difference between fraternal twins and identical twins?
Slide 20 - Open vraag
What happens with the inner lining of the uterus when an egg cell is fertilised vs when an egg cell is not?
Slide 21 - Open vraag
The end of paragraph 5.5!
Check your notes, have a look and see if you understand everything
Next slide, you can ask any questions you have about this paragraph
The slides after that, I will explain what the homework for next week is
Slide 22 - Tekstslide
Ask any questions here!
Slide 23 - Open vraag
Homework
Do the exercise of paragraph 5.5 (17-25)
Read paragraph 5.6
Assignment 5.6: You will prepare 3 slides about 3 months of the pregnancy. See the document uploaded in Itslearning (assignment pregnancy). Note: every person is assigned 3 months, check the document which ones are for you and what you need to put on the slides!