Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Chapter 4, Problem 18Q
Do you suspect that the fact that humans use microbes such as
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Choose one prokaryote (bacteria or archaea) AND one protest. You can choose a species or more general taxonomic group of interest. Then address the following questions for each.
1. What does the organism look like? Describe or include an image.
2. How does it obtain energy?
3. How does it reproduce?
4. What are its close relatives in the tree of life?
5. Why is it important from a human perspective?
How does the emergence of endosymbiotic theory change the way humans view microorganisms? Will people be comfortable imagining that the life functions of plants and animals, including their own, are actually dependent on the coexistence of many different microscopic pieces?
This question is not answered yet
I took this picture recently of an organism growing on the surface of a rock. What type of organism
is this?
Protozoan
Eubacteri
Cyanobacteria
Mushroom
Lichen
Chapter 4 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 4.1 - Relate bacterial, archaeal, and eukaryotic cells...Ch. 4.1 - List the types of eukaryotic microorganisms, and...Ch. 4.2 - Differentiate among the flagellar structures of...Ch. 4.2 - List similarities and differences between...Ch. 4.2 - Describe the main structural components of a...Ch. 4.2 - Diagram how the nucleus, endoplasmic reticulum,...Ch. 4.2 - Prob. 7AYPCh. 4.2 - Explain the importance of ribosomes, and...Ch. 4.2 - List and describe the three main fibers of the...Ch. 4.2 - Prob. 10AYP
Ch. 4.2 - Prob. 1NPCh. 4.3 - Prob. 11AYPCh. 4.3 - Prob. 12AYPCh. 4.3 - Differentiate among the terms heterotroph,...Ch. 4.3 - Prob. 14AYPCh. 4.3 - Prob. 15AYPCh. 4.3 - Q. Yeast infection is one common side effect of...Ch. 4.3 - Prob. 2MMCh. 4.4 - Prob. 16AYPCh. 4.4 - Prob. 17AYPCh. 4.4 - Explain why a cyst stage may be useful to a...Ch. 4.4 - Prob. 19AYPCh. 4.4 - Prob. 2NPCh. 4.5 - Prob. 20AYPCh. 4.5 - Summarize the stages of a typical helminth life...Ch. 4.5 - Prob. 3NPCh. 4.5 - Prob. 3MMCh. 4 - Mitochondria likely originated from a. archaea. b....Ch. 4 - Summarize the endosymbiotic theory and explain how...Ch. 4 - Prob. 3QCh. 4 - Prob. 4QCh. 4 - Compare and contrast the structure and function of...Ch. 4 - Prob. 6QCh. 4 - Prob. 7QCh. 4 - Considering the role of fungi in nature, speculate...Ch. 4 - Prob. 9QCh. 4 - Prob. 10QCh. 4 - Prob. 11QCh. 4 - Prob. 12QCh. 4 - Prob. 13QCh. 4 - Prob. 14QCh. 4 - Do you suppose any of these eukaryotic microbes...Ch. 4 - Which of these groups causes the most casualties...Ch. 4 - Prob. 17QCh. 4 - Do you suspect that the fact that humans use...Ch. 4 - Which of the following is not useful to determine...Ch. 4 - Why were protozoa originally considered a single...Ch. 4 - Write a paragraph that would explain the...Ch. 4 - From chapter 2, figure 2.1. Discuss how the...
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- Imagine you are an astronaut and you are the first person to walk on Mars. You make the surprising discovery that there are "bacteria-like organisms" on Mars. Which of the following do not need to be true for you to consider these "bacteria-like organisms" as living? They must be able to reproduce. They must be able to respond to their environment. They must be able to transform energy. They must be able to move.arrow_forwardAccording to Lynn Margulis's theory of endosymbiosis, bacteria entered large cells either as parasites or as undigested prey as illustrated. All the following are proof that mitochondria and chloroplast evolved from bacteria, except: Endosymbiosis in a nutshell: 1. Start with two 2. One bacterium engulfs the other. 3. One bacterium now lives inside the other. independent bacteria. 4. Both bacteria benefit from the arrangement. 5. The internal bacteria are passed on from generation to generation. O a they each have a double membrane they have chromosomes similar in shape to their host they are the size of bacteria their DNA is different from its hostarrow_forwardWhich of the following best supports the theory that mitochondria are the product of an endosymbiotic event during which a prokaryotic cell engulfed a bacteria-like prokaryotic cell and established a symbiotic relationship with it? A the occurrence of glycolysis in both mitochondria and bacteria B с D the absence of chloroplasts in either mitochondria or bacteria the presence of similar DNA in mitochondria and bacteria the presence of similar nuclei in mitochondria and bacteriaarrow_forward
- If all prokaryotes on Earth suddenly vanished, which of the following would be the most likely and most direct result? O a. There would be no more pathogens on Earth. O b. Human populations would thrive in the absence of disease. O c. Bacteriophage numbers would dramatically increase. Od. The recycling of nutrients would be greatly reduced, at least initially. Next pagearrow_forwardIS IT A FACT OR A BLUFF? 1. Bacterial genetic material is composed single stranded DNA as compared to human DNA which is double stranded. 2. Just like humans, all microbes need oxygen to grow and reproduce. 3. There are no living microbes in volcanic vent and in hot spring because microbes die at very high temperature. 4. Most bacteria growth is retarded at low temperature. 5. Bacterial ATP production happens in the mitochondria which is the powerhouse of the cell. After identifying your answer whether fact or bluff, you need to give justification to your answer. You Justification should be given in not more that 50 words.arrow_forwardArchaea are different from Eubacteria are different types of prokaryotes because... Archaea lack a nucleus Archaea are unicellular Archaea lack peptidoglycan in their cell wall Archaea do not have ribosomesarrow_forward
- Archaea are so named because option1-their cell structure is thought to be more primitive than the cell structure of bacteria option2-they arose from the joining of members from the Archaea and Bacteria Domains. option3-many survive in extreme conditions thought to be similar to ancient earth option4-they are thought to be the first group of prokaryotes to evolve on eartharrow_forwardWe know that bacteria and archaea are very diverse in their metabolic capabilities, such as the consumption of organic waste and carbon dioxide and the creation of others such as oxygen, alcohol, methane, nitrates, and antibiotics. Amazingly these known capabilities only come form the 1-10% of prokaryotes that have been identified. Scientists hypothesize that at least 90% are undiscovered and have potential metabolic capabilities we could harness to benefit human life. If you were a scientist, what metabolic capability of bacteria would you try to discover to solve a human or environmental problem? Why?arrow_forwardWhich of the following is not true concerning the mitochondria and chloroplasts and is not evidence in support of the Endosymbiotic Theory? Both divide independently of the eukaryotic cell they are within Both contain their own DNA in a single, circular chromosome Both can survive independently when removed from a eukaryotic cell Both are about the same size as a bacteriaarrow_forward
- This domain is characterized by ancient bacteria that can live in extreme environments, such as volcanoes eukarya bacteria prokarya archaeaarrow_forwardWhich of the following provide evidence for an endosymbiotic origin of mitochondria and chloroplasts? Choose all the correct statements. Group of answer choices They are about the same size as free-living cyanobacteria and alpha proteobacteria. The nuclear membrane of eukaryotes is similar to the archaean cell membrane. Organelle genes are often more similar to bacterial genes than those of their eukaryotic host. These organelles have their own circular genomic DNA.arrow_forwardBacteria that can survive in extreme environments are called: a-Anaerobes b-Saprophytes c-Aerobes d-Archaebacteriaarrow_forward
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