Cells migrate by interacting with the extracellular matrix via the binding of membrane integrin with in the ECM. proteoglycans B) vinculin fibronectin collagen microfilaments
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- the extracellular matrix is not composed of a)Actin b)Fibronectin c)collagen d)proctoglyeanBecause they are embedded within the membrane, ionchannels are examples of ________.a. receptor proteinsb. integral proteinsc. peripheral proteinsd. glycoproteinsFor the Biosynthetic-secretory pathway• Describe how plasma membrane protein sorting occurs in the Golgi• Compare/contrast regulated vs constitutive secretion pathways
- Classify the fold of each protein. Classify the fold of each domain asall a (or mostly a), all b (or mostly b), a/b, or a+b.. 1. Firmicute collagen-binding protein (1FCB): 2. Bat glycosyltransferase (2BGT): 3. Proteobacterial nitrite sensor (3PNS):Heparan sulfate proteoglycans appertain to which of the following processes?*a. transport by argosomesb. transport by cytonemesc. restricted diffusiond. simple diffusion The model for planar transcytosis is characterized by which of the following?* a. Morphogen-receiving cells employ long actin-based filopodia. b. Morphogens interact with cell surface receptors and coreceptors. c. Lipid-modified morphogens are transported in lipoprotein vesicles. d. Morphogens are transported by repeated rounds of endocytosis and re-secretion. Metamerism is NOT observed in which of the following structures?* a. acron b. rhombomeres c. somites d. vertebral column The anterior structure of the Drosophila is promoted by which of the following events?* a. nanos proteins block the transcription of the caudal gene. b. caudal proteins promote the transcription of the bicoid gene. c. bicoid proteins promote transcription of the…List all the structures involved in protein production (protein synthesis) for exocytosis. Describe their function/role in this prosess.
- In all human cells, there is a higher concentration of calcium ions outside of thecell than on the inside of the cell. Calcium pumps are primary active transportproteins that help to maintain this imbalance. Describe how calcium pumpswork, including the direction of ion transport and the source of energy of thecalcium pumps.If the RGD tripeptide sequence in fibronevtin wete absent. Which is true? integrims would not bind to fibronectin cadherins on adjacent cells would not be able to interact in a homotypic fashion. fibronectin could not form crosslink with other extracellular matrix proteins. glycosaminoglycans would not be able to assemble onto proteoglycans.Receptors located within the cell are mostly A. Protein B. Glucoprotein C. Glucose D. Chitin D. None
- a. integral memebrane protein that crosses membrane multiple time b. lipid-linked membrane proteins c. peripheral memebrane protein d. integral memebrane protein that crosses membrane inceIn a given sample (whole organism, tissue, cell, subcellular compartment), what fraction of the whole proteome is expressed (i.e., which proteins are present)?Which Stimulation of a Cell Leads to an Increase in Cytosolic Ca21 Concentration