EBK HUMAN PHYSIOLOGY
EBK HUMAN PHYSIOLOGY
15th Edition
ISBN: 9781260163049
Author: Fox
Publisher: MCGRAW HILL BOOK COMPANY
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Chapter 3, Problem 11RA
Summary Introduction

To determine:

Features about rRNA.

Introduction:

rRNA (Ribosomal Ribonucleic Acid) is the RNA component of the ribosome. It is important for protein synthesis in all organisms. rRNA is responsible for reading the frame of amino acids and links amino acids together.

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A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?   The cell membranes are more resistant than normal.   An isotonic solution had been added instead of water.   A solution of 0.1 M NaCl had been added instead of water.   Not enough water had been added to the red blood cell pellet.   The man had sickle-cell anaemia.
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?   The cell membranes are more resistant than normal.   An isotonic solution had been added instead of water.   A solution of 0.1 M NaCl had been added instead of water.   Not enough water had been added to the red blood cell pellet.   The man had sickle-cell anaemia.
With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin

Chapter 3 Solutions

EBK HUMAN PHYSIOLOGY

Ch. 3 - Prob. 11RACh. 3 - Which of these statements about tRNA is true?...Ch. 3 - The step in protein synthesis during which tRNA,...Ch. 3 - Prob. 14RACh. 3 - Prob. 15RACh. 3 - Prob. 16RACh. 3 - Give some specific examples that illustrate the...Ch. 3 - Describe the structure of nucleosomes, and explain...Ch. 3 - What is the genetic code, and how does it affect...Ch. 3 - Why may tRNA be considered the "interpreter" of...Ch. 3 - Prob. 21RACh. 3 - Define the terms genome and proteome, and explain...Ch. 3 - Prob. 23RACh. 3 - Explain the functions of centrioles in nondividing...Ch. 3 - Prob. 25RACh. 3 - Prob. 26RACh. 3 - Define apoptosis and explain the physiological...Ch. 3 - Describe what is meant by epigenetic inheritance,...Ch. 3 - Discuss the role of chromatin proteins in...Ch. 3 - Explain how p53 functions as a tumor suppressor...Ch. 3 - Prob. 31RACh. 3 - Antibiotics can have different mechanisms of...Ch. 3 - Explain how it is possible for the human proteome...Ch. 3 - Explain RNA interference RNAi by siRNA and miRNA...Ch. 3 - Describe the function and significance of...Ch. 3 - Prob. 36RACh. 3 - Review figure 3.19 and answer the following...Ch. 3 - Prob. 38RACh. 3 - Describe the structure of the plasma membrane.Ch. 3 - Describe the structure and function of cilia,...Ch. 3 - Prob. 2aCPCh. 3 - Prob. 2bCPCh. 3 - Prob. 3aCPCh. 3 - Prob. 3bCPCh. 3 - Describe the structure and functions of...Ch. 3 - Prob. 3dCPCh. 3 - Describe the structure and function of ribosomes.Ch. 3 - Distinguish the two types of endoplasmic reticulum...Ch. 3 - Describe the appearance and composition of...Ch. 3 - Explain how RNA is produced within the nucleus...Ch. 3 - Explain how precursor mRNA is modified to produce...Ch. 3 - Explain how mRNA. rRNA, and tRNA function during...Ch. 3 - Describe the rough endoplasmic reticulum, and...Ch. 3 - Describe post-translational changes and other...Ch. 3 - Draw a simple diagram of the semiconservative...Ch. 3 - Describe the cell cycle using the proper symbols...Ch. 3 - Prob. 10bCPCh. 3 - List the phases of mitosis and briefly describe...Ch. 3 - Distinguish between mitosis and meiosis, describe...
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