![subject](/tpl/images/cats/biologiya.png)
Biology, 08.09.2021 04:50 allofthosefruit
In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present.
Fleming hypothesized that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth and then added the broth to a culture of bacteria. He observed that the bacteria in the culture died. Fleming's experiments were later used to develop antibiotics. .
6. State the question or problem that Fleming investigated.
7. What was Fleming's hypothesis?
8. How was the hypothesis tested?
9. Write a statement that summarizes the results of the experiment.
10. This experiment lead to the development of what major medical advancement?
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 00:00
Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
You know the right answer?
In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He no...
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 20.01.2021 23:00
![question](/tpl/images/cats/istoriya.png)
History, 20.01.2021 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 23:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 23:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.01.2021 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 23:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 20.01.2021 23:00
![question](/tpl/images/cats/istoriya.png)
History, 20.01.2021 23:00
![question](/tpl/images/cats/fizika.png)
Physics, 20.01.2021 23:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.01.2021 23:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 23:00