L'unité microscopique des etre vivant
problématique:comment est né le concept de cellule comme unité structurale du monde vivant
Sommaire
1. Idée de Schwann2. Points communs des cellules
3. LUCA et lien avec les découvertes sur la cellule
4. Lien Schwann et Darwin
l'idée de Schwann
• La cellule = unité fondamentale du vivant
•Plantes et animaux ont la même base
•1839: observations de tissus animaux
•Comparaison avec les plantes (Schleiden)
•Présence du noyau
•Les tissus = assemblage de cellules.
points communs
• Organisaion cellulaire commune
• Membrane + milieu intérieur
• Noyau présent dans toutes les cellules
• Formes et tailles différentes, fonctionnement similaire
luca
• Tous les êtres vivants sont composés de
cellules
•Même base de construction malgré les
différences
•LUCA = Last Universal Common Ancestor
•Apparition : 3,3 à 3,7 milliards d'années •Trois domaines du vivant actuels : Bactéries, Archées, Eucaryotes
•Origine commune des cellules
Lien entre Schwann et Darwin
• Schwann : fondateur de la théorie cellulaire
• Tous les êtres vivants sont composés de
cellules
• La cellule = unité fondamentale de la vie
• Lien avec Darwin : ancêtre commun et hérédité
• La théorie cellulaire aide à comprendre
l'évolution
FRISE CHRONOLOGIQUE
1859
1839
1878
1996
Patrick Forterre nomme LUCA, le dernier ancêtre commun universel
Discours de Schwann : la cellule est l'unité de base de tous les êtres vivants
Observations de tissus animaux par Schwann
Darwin publie la théorie de l'évolution
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You can includea relevant factto highlight
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L'unité microscopique des etre vivant
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Created on January 26, 2026
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Transcript
L'unité microscopique des etre vivant
problématique:comment est né le concept de cellule comme unité structurale du monde vivant
Sommaire
1. Idée de Schwann2. Points communs des cellules 3. LUCA et lien avec les découvertes sur la cellule 4. Lien Schwann et Darwin
l'idée de Schwann
• La cellule = unité fondamentale du vivant •Plantes et animaux ont la même base •1839: observations de tissus animaux •Comparaison avec les plantes (Schleiden) •Présence du noyau •Les tissus = assemblage de cellules.
points communs
• Organisaion cellulaire commune • Membrane + milieu intérieur • Noyau présent dans toutes les cellules • Formes et tailles différentes, fonctionnement similaire
luca
• Tous les êtres vivants sont composés de cellules •Même base de construction malgré les différences •LUCA = Last Universal Common Ancestor •Apparition : 3,3 à 3,7 milliards d'années •Trois domaines du vivant actuels : Bactéries, Archées, Eucaryotes •Origine commune des cellules
Lien entre Schwann et Darwin
• Schwann : fondateur de la théorie cellulaire • Tous les êtres vivants sont composés de cellules • La cellule = unité fondamentale de la vie • Lien avec Darwin : ancêtre commun et hérédité • La théorie cellulaire aide à comprendre l'évolution
FRISE CHRONOLOGIQUE
1859
1839
1878
1996
Patrick Forterre nomme LUCA, le dernier ancêtre commun universel
Discours de Schwann : la cellule est l'unité de base de tous les êtres vivants
Observations de tissus animaux par Schwann
Darwin publie la théorie de l'évolution
You can includea relevant factto highlight
You can includea relevant factto highlight
Wow Effect
Enter a title here
Disciplines like Visual Thinking facilitate the creation of visually rich notes through the use of images, graphics, infographics, and simple drawings. Go for it!
Visual content is a cross-cultural, universal language, like music. We are able to understand images from millions of years ago, even from other cultures.
Did you know that Genially allows you to share your creation directly, without the need for downloads? Ready for your audience to view it on any device and share anywhere.
With Genially templates, you can include visual resources to leave your audience amazed. Also highlight a specific phrase or data that sticks firmly in your audience's memory, and even embed external content that surprises: videos, photos, audios... Whatever you want!
Use this space to put a great phrase
With Genially templates, you can include visual resources to leave your audience amazed. You can also highlight a specific phrase or data that sticks in the memory of your audience, or even embed external content that surprises: videos, photos, audios... Whatever you want!
Interactivity
With Genially templates, you can include visual resources to leave your audience amazed. Also highlight a specific phrase or data that sticks permanently in your audience's memory, and even embed external content that surprises: videos, photos, audios... Whatever you want!
Info
Pose adramatic question.
Write atitle here
It is the essential ingredient to maintain the audience's attention.
Info
To intrigue the audience and resolve at the end.
It is usually posed subtly at the beginning of the story.
Write a great headline
20XX
20XX
20XX
20XX
20XX
Icons are always good allies.
And leave your audience amazed.
The important thing is that everything fits the theme.
Also animations to make it fun.
You can add interactivity to your timeline.
Underline a figure or relevant data in this space
75%
the information we process comes through the view
Boringpresentation
Generates yawns in your audience
PresentationWOW
Generates yawns in your audience
Info
Info
Motivate theaudience
Surprise your audience
Communicate concisely
Plan the content
Keep a key value in mind
Track their progress
Promotes learning
Design how to visualize it
Info
Text + icons
Activate and surprise your audience
Create experiences with your content
It’s got the Wow effect. Very Wow
Measure results and experiment
A great presentation…
Improve communication on any topic
It 'matches' withyour audience...
And make them partof the message
Thank you so much!
youremail@genially.com yourwebsite.com
With Genially templates, you can include visual resources to leave your audience amazed. Also highlight a specific phrase or data that sticks firmly in your audience's memory, and even embed external content that surprises: videos, photos, audio... Whatever you want!