Analysis of a glandular secretion indicate ty it contains some DNA , RNA and Membrane component such as phospholipids. what kind of secretion is this and why?
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Analysis of a glandular secretion indicate ty it contains some DNA , RNA and Membrane component such as phospholipids. what kind of secretion is this and why?
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- A sebaceous gland in our skin secretes oils to protect the skin. This is a holocrine gland. What is true about the sebaceous gland? All of the answers are correct O The sebaceous gland disintegrade when they release substances The cells in the sebaceous gland release oil by decapitation of the cell Sebaceous glands secrete substances via exocytosisall the following statements which relate to apical surface modifications(brush border) of epithelial cells are true except. * these are anchored in a dense mat of microfilaments in the apical cytoplasm called the terminal, lateral web. The apical surface of cells in intestine is usually covered with microvilli. the microfilaments can contract, By interacting with cytoplasmic myosin, then caused the shortening of the microvilli. cores of microvilli are composed of parallel actin microfilaments.The glandular secretions contain a large number of which different chemical substances?
- Epithelial sheets are classified by their number of cell layers and their cell shape. In the following table, draw simplified illustrations of the eight classifications. In each illustration, identify the cells, nuclei, and basement membrane. For the stratified epithelia, you only need to draw two or three cell layers, as shown in the stratified cuboidal epithelium example provided in the table. Simple squamous Stratified squamous Simple cuboidal Stratified cuboidal Simple columnar Stratified columnar Pseudostratified columnar TransitionalWhat is the Calculated size of 1 cell of simple cuboidal epithelium. Show work including units.Secretory vesicles fuse with the cell membrane to release their contents to the outside of the cell. In this process, the membrane of the secretory vesicle becomes part of the cell membrane. Because small pieces of membrane are continually added to the cell membrane, we would expect the cell membrane to become larger and larger as secretion continues. However, the cell membrane stays the same size. Explain how this happens.
- n which type of secretion do cell products accumulate in the cytoplasm before the entire cell disintegrates? Multiple Choice Exocrine Holocrine Aprocrine Endocrine AutocrineMATCHING TYPE COLOUMN A COLOUMN B This cellular region contains numerous phagocytic vacuoles and secondary lysosomes, peroxisomes Melanin granules are numerous It has nine (9) distinct layers It consists of cuboidal or low columnar cells with basal nuclei Its cells play key roles in the visual cycle of retinal regeneration It contains cell bodies and photoreceptors (rod and cone of cells) It is where the Müller cells are located It functions as an outpost of the CNS It has many tight junctions which form an important part of the protective blood-retina barrier This is where phagocytosis happens A. RETINA PIGMENTED LAYER B. RETIA NEURAL LAYEROn a molecular/cellular level, why do you think that it is important for there to be a distinction between apical and basolateral domains of epithelial cells? Please clearly highlight the importance of the distinctions.
- GI ME Concept Map: Epithelial Tissues arrangement of pseudostratified the cells epithelium Group 2 simple epithelium can be classified based on the can be classified based on the stratified epithelium squamous epithelium Group 2 Group 1 epithelial tissue typical cell shape is limited to one layer in P Pearson Is In multiple layers in falsely appears to be made up of multiple cell layers in flattened, scale-like cells cells with similar height and width study room booking cuboidal epithelium Group 2 Group 2 Group 2 columnar epithelium Group 1 Group 1 pearson Course < 17 of 30 Copyright © 2022 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy. Permissions Contact UsExplain and Discuss the following: why reticular fibers are also termed as argyrophilic fiber and lattice fiber? What is the staining method used to demonstrate the reticular fibers? What are the importance of reticular connective tissue? Why adipose cell exhibit the characteristic signet ring appearance? What do you attribute the large size of the fat cells?Epithelial surfaces provide the first line of defense against infection by the use of several types of mechanisms. One of the chemical mechanisms used by epithelia is: Joining of epithelial cells by tight junctions Secretion of antimicrobial peptides by epithelial cells Production of mucus, tears, or saliva in the nose, eyes, and oral cavity Movement of mucus by cilia Peristalsis in the gastrointestinal tract
