34- Which of the following is not a componen of the basal laminat Laminin b. Col

Question

34- Which of the following is not a componen of the basal laminat Laminin b. Collagen e. Iibeonectin d. Proteoglycans e. None of the above. 35- Which of the following is only found in the basal lamina? a Laminin. b. Collagen c. Fibronectin. d. Proteoglycans e. None of the above. 36- Which of the following forms fibers that provide tensile strength to the ECM a. Laminin b. Collagen. c. Fibronectin. d. GAGs e. None of the above. 37- An individual genetically unable to synthesize normal integrins is likely to have epithelia defective in a. Control of paracellular transport b. Electrical or chemical communication between cells. c. Attachment to the basal lamina. d. Strong cell-to-cell attachment in the epithelial shcet e. Movement of membrane proteins in the apical domain 38. An individual genetically unable to synthesize nomal claudins is likely to have epithelia defective in a. b. e. d. e. Control of paracellular transport Electrical or chemical communication between cells. Attachment to the basal lamina. Strong cell-to-cell attachment in the epithelial sheet. Movement of membrane proteins in the apical domain. 39-An individual genetically unable to synthesize normal desmosomal cadherins is likely to have epithelia defective in a. Control of paracellular transport. b. Electrical or chemical communication between cells c. Attachment to the basal lamina. d. Strong cell-to-cell attachment in the epithelial sheet. e. Movement of membrane proteins in the apical domain. 40-An individual genetically unable to synthesize normal connexins is likely to have epithelia defective in a Control of paracellular transport. b. Electrical or chemical communication between cells c. Attachment to the basal lamina. d. Strong cell-to-cell attachment in the epithelial sheet e. Movement of membrane proteins in the apical domain.

Explanation / Answer

34. Fibronectin

35. Proteoglycans

36. Collagen

37. Attachment to the basal lamina. This is because integrins help in the attachment to the basal lamina.

38. Strong cell-to-cell attachment in the epithelial sheet. This is because Cluadins are transmembrane proteins of tight junctions.

39. Movement of membrane proteins in the apical domain. This is because desmosomal cadherins are connected to intermediate filaments which are clustered with cytoplasmic proteins.

40. Electrical or chemical communication between cells.

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