1. How did Janssen's, Hooke's, and Leeuwenhoek's work contribute to the work of the scientists that came after them?
Janssen's was known for the first creation of microscope around the 1950's. his microscope had a three objective lenses and eyepiece, and his microscope was very advanced for the age. the world cells are coming from the latin word "cella" which means small rooms. cells were first discovered by Robert Hooke, he is a scientist from England and have described the cell as a thin piece of cork, empty spaces contained by walls. Anton Van Leeuwenhoek was a Netherlands born scientist that helped increasing the magnification of the microscope. in 1674 he algae and animalcules. These three scientist discoveries are all connected to one another that help scientist today to dig deeper and get the rough idea of the informations about cells.
2. How would our lives be different if we had never realized the existance of microorganisms? Provide at least one example to support your answer.
Microorganisms are living organisms that is impossible to be seen by the naked eye and are found all around us, with the help of microscope we are able to see microorganism such as bacteria, fungi, viruses, algae, archaea, and protozoa. Without realizing the existence of microorganism, our live would be very different. we wouldn't be able to make vaccines or medicine today that helped cure and keep them away from our immune system.
3. Describe the concept of spontaneous generation. Why do you think it took such a long time for people to accept that this idea was incorrect?
hypothetically spontaneous generation is a process which living organisms develop from non-living organisms, and the archaic theory explain the origin of life. The theory of spontaneous generation was first recorded in the 384-322 BC by a Greek philosopher Aristotle. Aristotle proposed that life arose from non-living material. Jan Baptista van Helmont is a seventh century Flemish scientist that proposed mice could arise from rags and wheat kernels container left open for 3 weeks, while in reality such habits provided ideal food sources and shelter for mouse population to flourish. on 1668 Francesco Redi, Italian physician had an experiment that involve with meet and container. from the experiment he conclude that maggots are flies offsprings and the meet allowed the flies to lay eggs in the meet.
4. How do you think the cell theory impacted later scientific discoveries? Explain your answer.
the discovery of cell theory have a great impact for scientist today because it proves that every living matter is made out of more or one cells. this impact leads us to the understanding of organisms. there are two different types of organisms prokaryotic and eukaryotic. prokaryotes organisms contains of single cells, and eukaryotes organism contains more then one cells. example of eukaryotes are plant and animals, prokaryotes are bacteria.
5. The microscope and numerous experiments lead to the rejection of spontaneous generation. This idea had been accepted by most people, including scientists, for over 200 years. How does this demonstrate the true nature of science?
the nature of science is to develop and test on those theories, those theories can not be develop into anew theory once again.
6. Review Pasteur's experiment. Relate his experiment to the scientific method.
a. What was Pasteur's question?
Pasteur's question was "Where do the microbes come from to cause broth to decay?"
b. State a reasonable hypothesis based upon this question.
Microbes are created from cell organisms on dust particles in the air and not from the air itself.
c. What was the independent variable in Pasteur's experiment? What was the dependent variable?
from what Pasteur's experiment, he analyzed that the straight-necked flask that germs in the air were able to fall unobstructed down the straight-necked flask and contaminate the both. but the curved neck flask trapped germs, preventing them from reaching the broth and the result is that the broth never changed color or became cloudy. the dependent variable from Pasteur's experiment is the growth of microorganisms.
d. What did Pasteur conclude from his experiment?
the curved neck flask was never infected because germs could only come from other germs.
7. Examine your timeline. How long did it take to develop the cell theory? What does this imply about the formulation of a theory?
the cell theory started in 1665, when Robert Hooke first find the cork slice or honeycomb like structure. it developed over the years until the last theory about cells ended in 1855 by Rudolf Virchow, he is a German physiologist/phsician/pathologist, he added the third part to the cell theory. Omnis cellula e cellula translate as all cells only develop from other existing cells. Virchow was also the first to proposed that diseased cells come from healthy cells.
8. Why do we still consider the cell theory a theory? Explain your answer.
we still consider the cell theory as a theory because there is no proof of where cells are actually come from. scientist today still haven't found the origin of cells and cell theory have proven us that microbes exist but this theory is still hardly proven.
Janssen's was known for the first creation of microscope around the 1950's. his microscope had a three objective lenses and eyepiece, and his microscope was very advanced for the age. the world cells are coming from the latin word "cella" which means small rooms. cells were first discovered by Robert Hooke, he is a scientist from England and have described the cell as a thin piece of cork, empty spaces contained by walls. Anton Van Leeuwenhoek was a Netherlands born scientist that helped increasing the magnification of the microscope. in 1674 he algae and animalcules. These three scientist discoveries are all connected to one another that help scientist today to dig deeper and get the rough idea of the informations about cells.
2. How would our lives be different if we had never realized the existance of microorganisms? Provide at least one example to support your answer.
Microorganisms are living organisms that is impossible to be seen by the naked eye and are found all around us, with the help of microscope we are able to see microorganism such as bacteria, fungi, viruses, algae, archaea, and protozoa. Without realizing the existence of microorganism, our live would be very different. we wouldn't be able to make vaccines or medicine today that helped cure and keep them away from our immune system.
3. Describe the concept of spontaneous generation. Why do you think it took such a long time for people to accept that this idea was incorrect?
hypothetically spontaneous generation is a process which living organisms develop from non-living organisms, and the archaic theory explain the origin of life. The theory of spontaneous generation was first recorded in the 384-322 BC by a Greek philosopher Aristotle. Aristotle proposed that life arose from non-living material. Jan Baptista van Helmont is a seventh century Flemish scientist that proposed mice could arise from rags and wheat kernels container left open for 3 weeks, while in reality such habits provided ideal food sources and shelter for mouse population to flourish. on 1668 Francesco Redi, Italian physician had an experiment that involve with meet and container. from the experiment he conclude that maggots are flies offsprings and the meet allowed the flies to lay eggs in the meet.
4. How do you think the cell theory impacted later scientific discoveries? Explain your answer.
the discovery of cell theory have a great impact for scientist today because it proves that every living matter is made out of more or one cells. this impact leads us to the understanding of organisms. there are two different types of organisms prokaryotic and eukaryotic. prokaryotes organisms contains of single cells, and eukaryotes organism contains more then one cells. example of eukaryotes are plant and animals, prokaryotes are bacteria.
5. The microscope and numerous experiments lead to the rejection of spontaneous generation. This idea had been accepted by most people, including scientists, for over 200 years. How does this demonstrate the true nature of science?
the nature of science is to develop and test on those theories, those theories can not be develop into anew theory once again.
6. Review Pasteur's experiment. Relate his experiment to the scientific method.
a. What was Pasteur's question?
Pasteur's question was "Where do the microbes come from to cause broth to decay?"
b. State a reasonable hypothesis based upon this question.
Microbes are created from cell organisms on dust particles in the air and not from the air itself.
c. What was the independent variable in Pasteur's experiment? What was the dependent variable?
from what Pasteur's experiment, he analyzed that the straight-necked flask that germs in the air were able to fall unobstructed down the straight-necked flask and contaminate the both. but the curved neck flask trapped germs, preventing them from reaching the broth and the result is that the broth never changed color or became cloudy. the dependent variable from Pasteur's experiment is the growth of microorganisms.
d. What did Pasteur conclude from his experiment?
the curved neck flask was never infected because germs could only come from other germs.
7. Examine your timeline. How long did it take to develop the cell theory? What does this imply about the formulation of a theory?
the cell theory started in 1665, when Robert Hooke first find the cork slice or honeycomb like structure. it developed over the years until the last theory about cells ended in 1855 by Rudolf Virchow, he is a German physiologist/phsician/pathologist, he added the third part to the cell theory. Omnis cellula e cellula translate as all cells only develop from other existing cells. Virchow was also the first to proposed that diseased cells come from healthy cells.
8. Why do we still consider the cell theory a theory? Explain your answer.
we still consider the cell theory as a theory because there is no proof of where cells are actually come from. scientist today still haven't found the origin of cells and cell theory have proven us that microbes exist but this theory is still hardly proven.