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Exam (elaborations)

TEST BANK FOR PORTH'S PATHOPHYSIOLOGY 10TH EDITION BY NORRIS

TEST BANK FOR PORTH'S PATHOPHYSIOLOGY 10TH EDITION BY NORRIS 1. During a discussion on cellular components and their function, a student asked the instructor the purpose of messenger RNA (mRNA). Of the following, which is the most accurate answer? A) Transports amino acids to the site of protein synthesis B) Acts as an inner nuclear support membrane for a rigid network of protein filaments that bind DNA to the nucleus C) Performs an active role of protein synthesis, where mRNA molecules direct the assembly of proteins on ribosomes to the cytoplasm D) Assists cells in forming neoplastic progression by altering the response of chromatin in the nuclear matrix Ans: C Feedback: The nucleus is the site for the synthesis of three types of RNA that move to the cytoplasm and carry out the actual synthesis of proteins. Messenger RNA copies and carries the DNA instructions for protein synthesis to the cytoplasm. Ribosomal RNA is the site of actual protein synthesis; transfer RNA transports amino acids to the site of protein synthesis. 2. The nurse is providing care for a client with a diagnosis of cirrhosis, and she notes that the client's sclerae are jaundiced. The nurse recalls that jaundice is a pigment that can accumulate in which part of the cell? A) Nucleus B) Cytoplasm C) Golgi apparatus D) Rough endoplasmic reticulum (ER) Ans: B Feedback: Pigments such as bilirubin and melanin can accumulate in the cytoplasm, resulting in the characteristic yellow skin tones associated with jaundice. Pigments

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Test bank for porths pathophysiology 10th edition by Norris

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