Considering prokaryotic flagella, how does the structure of the flagella influence the specific movement? What are the different components of flagella and how do they work?
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Considering prokaryotic flagella, how does the structure of the flagella influence the specific movement? What are the different components of flagella and how do they work?
Flagella is the primary organ of prokaryotic locomotion. It guides prokaryotes in direction in response to external stimulus such as chemotaxis or phototaxis.
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- List and describe the three main types of cytoskeleton. If you wanted to do immunocytochemistry to specifically stain each type of cytoskeleton, what is a protein that could be used for each cytoskeletal type (in other words, what is a unique protein for each cytoskeletal type)? What are three types of actin structures? Describe the involvement of actin structures in cell migration. How is the growth and shrinking of microtubules regulated? Then describe the roles of microtubules in: chromosomal separation during mitosis and the movement of organelles and vesicles within a cell. Describe a possible mechanism on how signaling pathways might impact the cytoskeleton, so that cell migration could be regulated in a localized manner within a multicellular organism. (hint: think about the possible transcriptional regulation of the G-protein regulators) What are 2 main challenges of protein targeting? Then describe one way these challenges are overcome during signal-based targeting and one way…Which of the cytoskeletal structures depicted provide resistance against mechanical stress (think about the disease that causes blistering of the skin with the slightest touch)?List and describe the three main types of cytoskeleton. If you wanted to do immunocytochemistry to specifically stain each type of cytoskeleton, what is a protein that could be used for each cytoskeletal type (in other words, what is a unique protein for each cytoskeletal type)?
- How do cilia and flagella move, and what is dynein’s role in the process? Contrast the ways in which flagella and cilia propel eukaryotic microorganisms through water.Answer the Guide Question: a) Each cell in an organism has all of the basic parts. Each has a function that benefits the other cells, how might the presence of different cell structures in plant and animal help them perform their functions as an organism. Explain. b) Why is the cell membrane considered as the guard of the cell? c) Why is the lysosome considered as the suicide bag of the cell?If Prokaryotic cells do not have membrane-bound organelles, can Prokaryotic cells perform the same functions as membrane-bound organelles?
- What is one way that the bacterial plasma membrane, and the bacterial cell wall, are functionally similar? And what is one way that the bacterial plasma membrane, and the bacterial cell wall, are functionally different?Some scientists claim that prokaryotes like bacteria have membrane bound organelles, like chromatophores, anammoxosomes and magnetosomes. What really is the truth because it is widely known that prokaryotes do not have membrane bound organelles. Are these claims true or merely speculative? If this is true, what is the physiological basis for this?How are the nucleus , the ribosomes , endoplasmic reticulum and Golgi apparatus related? How are the mitochondria and the chloroplast similar? How are the mitochondria and the chloroplast simlar? How are the smooth endoplasmic reticulum and the cell membrane related? Which organelles are not membrane bound? How are prokaryotic and eukaryotic cells similar? How are prokaryotic and eukaryotic cells different?