compare and contrast the three different filaments
found in the cytoskeleton system.
please go into more detail than the space allotted.
Intermediate filaments | Actin | Microtubules | |
Unique function of filaments | provide mechanical support to the plasma membrane | these proteins play an important role in cell division and muscle contraction | give shape to the cell and provide protection to the cell |
Dynamic or static | they are static | they are dynamic | they are highly dynamic . Undergoes rapid cycle of polymerization and depolymerization |
Interact with which motor protein | they do not interact with any motor protein | myosin is the motor protein | kinesins |
compare and contrast the three different filaments found in the cytoskeleton system. please go into more...
Compare and Contrast all three cytoskeletal elements (microtubules, microfilaments, intermediate filaments).
Intermediate filaments are an essential class of cytoskeletal proteins. Give three examples of how they different from the other cytoskeletal systems, i.e., microtubules and microfilaments. (The best answer will include some details about the other cytoskeletal elements, e.g., composition, proteins that bind actin/tubulin, etc.)
of the three types of fibers; microfilaments (or and intermediate filaments are fibers with diameters in a Microtubules are the filaments) are the middle range. Microtubules are hollow rods about 25 nm in diameter and 200 nm to 25 um in length. Microtubule fibers are constructed of the globular protein A tubulin dimer consists of two slightly different polypeptides: a-tubulin and B-tubulin. Microtubules shape and support the cell and serve as tracks to guide motor proteins carrving organelles to their...
What stages of transcription requires GTP hudrolysis? (Please specify which stages) What stages of translation requires GTP hydrolysis? (Please specify which stages, not how many GTP is used) Please list what statement applies to Intermediate filaments (IF), microtubules (MTs) or actin filaments (AF). Some statements may apply to more than one filament type. a) End is stabilized with a GTP-cap b) Polymerization occurs at the + end c) Filament does not have polar ends d) Motor proteins can move along...
What is an organelle that pinches off portions of its membrane to form is transport vesicle? Golgi body peroxisome nucleolus mitochondrion chloroplasts What is tenet of the cell theory? Each cell is composed only of products that it manufactures. Cells may arise spontaneously under certain laboratory conditions. Each cell makes its own hereditary material. The cell is the smallest unit that retains the characteristics of life. All organisms consist of more than one cell. Classification. The following items are part...
please answer all that you can 1. You have genetically engineered green fluorescent protein (GFP) containing a KDEL sequence (GFP-KDEL). When GFP-KDEL is expressed in normal human fibroblasts and examined using fluorescence microscopy, the fluorescence appears diffuse across the cytoplasm. How would you explain this observations given that KDEL is supposed to be an ER-specific sorting sequence? A. This engineered GFP would not have a hydrophobic signal sequence to get it into the RER in the first place. B. The...
only Q 1 please is is the last homework. 1. Compare and contrast designing via gain versus designing via compensation (what's the same? what's different? advantages? disadvantages? etc.). Also, discuss the effects of adding a zero or a pole. Solution: 2. What kind of compensation improves steady state error? List all and indicate whether they are active or passive. Solution: 3. Cascade compensation to improve transient response is based upon what pole-zero placement of the compensator? Also, state the reasons...
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10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow to happen within the myofiber? (5 points) 2. According to the paper, what is the major disadvantage of relying on glycolysis during high-intensity exercise? (5 points) 3. Using Figure 1 in the paper, briefly describe the different sources of ATP production at 50% versus 90% AND explain whether you believe this depiction of ATP production applies to a Type IIX myofiber in a human....