A swan necked flask - Study guides, Class notes & Summaries

Chapter 1 The Microbial World 1.1 Multiple Choice Questions 1) Which of the following statements is FALSE? A) Microbial cells can exist as single cells. B) Microbial cells carry out their life processes of growth independently. C) Microbial cells include both bacteria and viruses. D) Microbial cells are surrounded by a plasma membrane. 2) Which of the following statements is correct? A) Microorganisms are significant contributors to the total biomass on Earth. B) Microorganism...

Why might Pasteur's experiment be inconclusive? - The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? - To ensure that results were not achieved by random chance What is the definition of a replicate? - Unit that shares a common thing (4 mice in one cage = 1 replicate) What does the law of succession suggest? - As one species disap...

WHAT IS THE PURPOSE OF A SWAN NECKED FLASK? - Answer Pasteur's swan necked flask shows that they remained free of microbes in the absence of microorganisms, disproving the theory of spontaneous generation A SPECIFIC ________ CAUSES A SPECIFIC DISEASE - Answer microbe WHICH SCIENTIST PROMOTED HAND SANITIZER? - Answer Joseph Lister GRAM STAINING IS WHAT TYPE OF STAINING? - Answer differential staining WHAT ARE THE 5 I'S OF MICROBIOLOGY (IN ORDER) - Answer inoculation ...

4 important facts about Antoni van Leeuwenhoek (Dutch) - Answer -First person to see protozoa and bacteria -Began making and using simple microscopes -Often made a new microscope for each specimen -Examined water and visualized tiny animals, fungi, algae, and single-celled protozoa; "animalcules 2 important facts about Carolus Linnaeus - Answer -developed taxonomic system for naming plants and animals and grouping similar organisms together -Leeuwenhoek's microorganisms grouped int...

McMaster Bio 1M03 UPDATED ACTUAL Exam Questions and CORRECT Answers Why might Pasteur's experiment be inconclusive? - CORRECT ANSWER- The swannecked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? - CORRECT ANSWER- To ensure that results were not achieved by random chance What is the definition of a replicate? - CORRECT ANSWER- Unit that sh...

What are the 5 fundamental traits of life? With these traits in mind, are viruses alive? What evidence supports your conclusion? Answer> -Energy Use and Metabolism -Cell Theory -Information, Genetics -Replication or reproduction -Biological Evolution -No, viruses are not alive because they do not have cells. How do hypotheses and theories differ? What do scientists mean by "theory" and does this mean the same thing as "in theory" that non-scientists may say in conversation? E...

How does one determine the number of covalent bonds an element will likely form? Correct Answer-The number of valence electrons What properties make water an excellent solvent? Correct Answer-Polarity, molecular shape, hydrogen bonding An amphipathic molecule contains what? Correct Answer-Both hydrophilic and hydrophobic zones We find an unknown liquid that is non-polar. When it is placed in water, what can we expect to happen? Correct Answer-The unknown liquid will not dissolve A ne...

BIO 205 Final Exam Questions With Verified Answers Resolving power of an optical microscope is defined as: The ability to distinguish two closely positioned objects as separate entities What is the total magnification produced by a microscope, using a 10x ocular lens and a 10x objective lens? 100x This scientist experimented on his son and developed the first smallpox vaccine: Edward Jenner This man built the first crude compound microscope and coined the term "cell" to mean...

McMaster Bio 1M03: Exam 2024/2025 Questions with all the correct Answers ;( Real actual exam) Why might Pasteur's experiment be inconclusive? - Correct Answer The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? - Correct Answer To ensure that results were not achieved by random chance What is the definition of a replicate? - Correc...

McMaster Bio 1M03: Exam Questions And Answers Why might Pasteur's experiment be inconclusive? - ANS The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? - ANS To ensure that results were not achieved by random chance What is the definition of a replicate? - ANS Unit that shares a common thing (4 mice in one cage = 1 repl...