What are the features for Human Retinal Pigment Epithelial Cells?

What are the features for Human Retinal Pigment Epithelial Cells?
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Human Retinal Pigment Epithelial Cells (HRPEpiC) are isolatedfrom human retina. HRPEpiC are cryopreserved at passage one anddelivered frozen. Each vial contains >5 x 10^5 cells in 1 mlvolume. HRPEpiC are characterized by immunofluorescent method withantibodies to cytokeratin-18, cytokeratin-19 and fibronectin.HRPEpiC are negative for HIV-1, HBV, HCV, mycoplasma, bacteria,yeast and fungi.
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With respect to lens development: a. the lens first appears at 27 days of gestation b. it is formed from neural crest cells c. the lens first appears as a vesicles with a single layer of epithelial cells d. Y suture is absent in the embryonic nucleus e. the adult lens is more spherical than the foetal

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Male hormone is produced in the testis by cells of (a) Sertoli (b) epithelial (c) spermatocytes (d) Leydig.

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Epithelial cells of the intestine involved in food absorption have on their surface (a) pinocytic vesicles (b) microvilli (c) zymogen granules (d) phagocytic vesicles.

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An epithelial tissue which has thin flat cells, arranged edge to edge so as to appear like closely packed tiles, is found to be present at (a) outer surface of ovary (b) inner lining of Fallopian tube (c) inner lining of stomach (d) inner lining of cheeks.

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Last Answer : (d) inner lining of cheeks.

Which cells do not form layer and remains structurally separate? (a) Epithelial cells (b) Muscle cells (c) Nerve cells (d) Gland cells

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The ciliated columnar epithelial cells in humans are known to occur in (a) Eustachian tube and stomach lining (b) bronchioles and Fallopian tube (c) bile duct and oesophagus (d) Fallopian tube and urethra.

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The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in (a) bronchioles and Fallopian tubes (b) bile duct and bronchioles (c) Fallopian tubes and pancreatic duct (d) Eustachian tube and salivary duct

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Goblet cells of alimentary canal are modified from (a) squamous epithelial cells (b) columnar epithelial cells (c) chondrocytes (d) compound epithelial cells.

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.Which one of the following cells, found in testes of rabbit, secretes male hormone? (a) Epithelial cells (b) Spermatocytes (c) Leydig’s cell (d) Sertoli cells

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Last Answer : (c) Leydig’s cell

Which of the following types of cells have a latent ability to regenerate? a) Stable Stable cells have a latent ability to regenerate if they are damaged or destroyed and are found in the kidney, liver, and pancreas, among other body organs. b) Labile Labile cells multiply constantly to replace cells worn out by normal physiologic processes. c) Permanent Permanent cells include neurons — the nerve cell bodies, not their axons. Destruction of a neuron causes permanent loss, but axons may regenerate. d) Epithelial Epithelial cells are a type of labile cell that multiply constantly to replace cells worn out by normal physiologic processes.

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Which of the following elements is not found in normal periodontal membrane: A. Fibroblast B. Epithelial cells C. Erythrocytes D. Vest cells of malaise E. Inflammatory plasma cells and lymphocytes

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Which type of cells does an abscess contain: A. Mast cells B. Polymorphonuclear leukocytes C. Eosinophils D. Epithelial cells

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