Cette leçon contient 14 diapositives, avec quiz interactifs et diapositives de texte.
La durée de la leçon est: 50 min
Éléments de cette leçon
Slide 1 - Diapositive
Asexual
Both: asexual and sexual
Sexual
Slide 2 - Question de remorquage
In changing environments, which is better for a species?
A
Sexual reproduction
B
Asexual reproduction
Slide 3 - Quiz
Some plants can be regrown completely from a single branch. Is this sexual or asexual reproduction?
A
Sexual reproduction
B
Asexual reproduction
Slide 4 - Quiz
Female reproductive system
Male reproductive system
Fallopian Tubes
Testicles
Prostate
Uterus
Seminal vesicle
Ovaries
Slide 5 - Question de remorquage
Learning goals 4.3
You will learn..
What are hormones?
Which hormone glands are present in the human body and which hormones do they produce?
Which hormones affect the reproductive system and how?
Slide 6 - Diapositive
What are hormones?
Function: growth, glucose level, heart rate etc.
Made by: glands
Transportation: by blood
Transmits the message
key-lock mechanism
Slide 7 - Diapositive
Slide 8 - Diapositive
Hormones
= 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
Messengers
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 9 - Diapositive
What is puberty?
Experiencing
starts 8-13
pituitary gland
Slide 10 - Diapositive
Physical changes
primary sexual characteristics = visible from birth
secondary sexual characteristsic = develops between the ages of 10 and 16 (puberty)
Slide 11 - Diapositive
Sex hormones
Hormones that work in the reproductive system are called sex hormones.
Different amounts are produced in males and females
Production of these leads to the physical change of male and female bodies
This production happens in many stages of life!
Slide 12 - Diapositive
How and which hormones affect puberty?
Changes of puberty
Gonadrotropin-releasing hormone
LH and FSH
Both
For guys --> testes, production
In girls --> stimulate, ovaries, oestrogen
Pregancy
Slide 13 - Diapositive
Doing work
Make exercises 10-13, pg. 110 -112. Done? Read chapter 4.4!