Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Dates biocell

QuestionAnswer
1665 Robert Hooke Observation d'une coupe de liège à l'aide d'une "lentille à puces", notion de cellule (unités morphologiques juxtaposées)
1673 Van Leeuwenhoeck 1er microscope (Gx300), déforme les images => observations de cellules vivantes, comme les protozoaires et les spermatozoïdes (= animalcules) ou les globules du sang humain
Début 19e s Microscopes optiques suffisamment perfectionnés pour permettre de mieux discerner les détails à l'échelle cellulaire
1833 Robert Brown Noyau cellulaire (végétaux puis animaux)
1839 Schleiden et Schwann 1ère hypothèse de la théorie cellulaire : organisme = somme des fonctions exécutées par les cellules qui le constituent. Toutes les cellules ont leur autonomie mais fonctionnent ensemble.
1839 Purkinje Observation du "protoplasme" (=cytoplasme) Hypothèse de la génération spontanée toujours dominante
1855 Virchow Hypothèse : toute cellule provient de la division d’une autre cellule vivante. Cellule = unité fondamentale de tout être vivant. Théorie de la pathologie cellulaire : origine des maladies = altération des cellules
1861 Pasteur Génération spontanée réfutée pour les microbes
1869 Miescher Observe la "nucléine" (ADN + protéines)
1882 Flemming Identification de la chromatine + observation de la mitose
1951 Gey Culture de cellules in vitro (HeLa). Prélèvement non consenti => actions en justice
Created by: user-2064483
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards