Question

In 1859, Louis Pasteur designed an experiment to address the spontaneous generation. He used a curved-neck flask that allowed the air inside the flask to mix with air outside the flask, but prevented solid particles, like microorganisms, from entering the body of the flask. Broth
boiled inside the experimental curved neck flasks remained clear for up to a year. But when Pasteur broke off the curved
necks, the broth became cloudy and contaminated within a day. Pasteur reasoned that the contamination was due to microorganisms in the air.

Based on the results of Pasteur's experiment, what do you infer would occur in the third flask?
A) No microorganisms will grow in the broth because the broth has been boiled to kill all the cells.
B) No microorganisms will grow in the broth because the microorganisms are only in the air, not in the broth.
C) Microorganisms will grow in the broth because tipping the flask exposes the broth to microorganisms in the air.
D) Microorganisms will grow in the broth because they already exist in the broth. Boiling doesn't destroy all of the microorganisms.

Answer 1

Answer:a

Explanation:

Answer 2

Answer:

Microorganisms will grow in the broth because tipping the flask exposes the broth to microorganisms in the air.

Explanation:

Pasteur's Experiment:-

The steps of Pasteur's experiment are outlined below:

• Initially, Pasteur arranged a supplement juices like the juices one would use in soup.

• Next, he set equivalent measures of the stock into two since a long time ago necked carafes. He left one flagon with a straight neck. The other he bowed to frame a "S" shape.

• At that point he heated up the juices in every carafe to murder any living issue in the fluid. The clean soups were then left to sit, at room temperature and presented to the air, in their surprised cups.

• Following a little while, Pasteur saw that the soup in the straight-neck jar was stained and shady, while the stock in the bended neck jar had not changed.

• On the off chance that unconstrained age had been a genuine wonder, Pasteur contended, the stock in the bended neck carafe would have in the end become reinfected in light of the fact that the germs would have precipitously produced. Yet, the bended neck carafe never got tainted, demonstrating that the germs could just originate from different germs.

• Pasteur's analysis has the entirety of the signs of present day logical request. It starts with a theory and it tests that speculation utilizing a deliberately controlled test. This equivalent procedure - in view of the equivalent intelligent grouping of steps - has been utilized by researchers for about 150 years. After some time, these means have developed into a glorified technique that we presently know as the logical strategy. Following a little while, Pasteur saw that the juices in the straight-neck jar was stained and shady, while the soup in the bended neck flagon had not changed.