What are the specific eukaryotic cell's cytoskeletal structure and their respective function(s). Choose only one species. For example, macrophage in humans.
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What are the specific eukaryotic cell's cytoskeletal structure and their respective function(s). Choose only one species. For example, macrophage in humans.
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- Three systems of cytoskeletal filaments exist in most eukaryotic cells. Compare them in terms of composition, function, and structure.Give the respective structural descriptions and functions of the following: 1. Cell Membrane 2. Nucleus 3. Nucleolus 4. Smooth Endoplasmic Reticulum 5. Rough Endoplasmic Reticulum 6. Nuclear Membrane 7. Mitochondria 8. Golgi Apparatus 9. CytoskeletonWhich of the following is a feature common to all three components of the cytoskeleton?
- What are the main advantages of the presence of organelles in eukaryotic cells?List the eight cellular parts that are specific to ALL eukaryotes. This should not include any cellular parts listed above that both prokaryotes and eukaryotes will have. This also should not include any cellular parts that only specific types of eukaryotes will have (example: cilia). Then state the function of the cellular part (what does it do for the cell?).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…
- A typical human hepatocyte (liver cell), a widely studied eukaryotic cell, has a diameter of about 20 μm. Calculate the volume of both a prokaryotic and a eukaryotic cell. To appreciate the magnitude of the size difference between the two cell types, estimate how many bacterial cells would fit inside the liver cell. (Hint: Use the expression V = πr 2h for the volume of a cylinder and V = (4/3)π r 3 .True or False Cell walls are present in the cells of archaea, bacteria, algae, fungi, and plants only. Photosynthetic unicellular prokaryotes such as Oscillatoria exhibit a green color when viewed under a microscope because of the presence of numerous chloroplasts. The nuclear membrane is a double-membrane structure that constitutes the outermost portion of the nucleus and is continuous with the Endoplasmic Reticulum.What are the major elements of the eukaryotic cytoskeleton and what are their properties? Which of these plays a major role in cell division?
- Which of the above cell parts are found in both prokaryotic and eukaryotic cells?Why do eukaryotic cells require a nucleus as a separate compartment when prokaryotic cells can manage perfectly well without?Eukaryotic cells and prokaryotic cells differ in terms of having organelles in separate compartments. What is the significance of compartmentalization in eukaryotic cell.