Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Chapter 2, Problem 6RQ
Summary Introduction
To determine:
The true statement about centrioles.
Introduction:
Eukaryotic cells have cell organelles that are separated from each other by means of the membranes present around them. The region of the cell that contains all the cell organelles is known as the cytoplasm of the cell. The nucleus is present in the center of the cell and the nucleoplasm is differentiated from the cytoplasm by the presence of the nuclear membrane.
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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 2 Solutions
Human Anatomy
Ch. 2 - What are the three general regions of a cell?Ch. 2 - What types of macromolecules compose the plasma...Ch. 2 - By what process does water enter and leave the...Ch. 2 - Which transport process carries large...Ch. 2 - Which cellular organelles are involved with...Ch. 2 - Which organelle produces the energy needed for...Ch. 2 - Which organelle would be prevalent in a cell that...Ch. 2 - Which cytoskeletal element functions to resist...Ch. 2 - What does the nucleolus produce?Ch. 2 - Which cytoplasmic organelle is continuous with the...
Ch. 2 - How does the appearance of extended chromatin...Ch. 2 - In which phase of the cell life cycle does the...Ch. 2 - Prob. 13CYUCh. 2 - Which cellular structures would be abundant in...Ch. 2 - Which organelles would be abundant in cells that...Ch. 2 - According to which aging theory presented here can...Ch. 2 - The endocytotic process in which particulate...Ch. 2 - The nuclear substance composed of histone proteins...Ch. 2 - Final preparations for cell division are made...Ch. 2 - Prob. 4RQCh. 2 - Identify the cell structure or organelle described...Ch. 2 - Prob. 6RQCh. 2 - The trans face of the Golgi apparatus (a) is its...Ch. 2 - Prob. 8RQCh. 2 - Name the appropriate stage of mitosis (prophase,...Ch. 2 - Name the cytoskeletal element (actin...Ch. 2 - Prob. 11RQCh. 2 - Which of these processes involves specific...Ch. 2 - List all the cytoplasmic organelles that are...Ch. 2 - Martin missed a point on his anatomy test because...Ch. 2 - In this chapter, we claimed that mitochondria are...Ch. 2 - Define chromosome, then compare the arrangement of...Ch. 2 - Prob. 17RQCh. 2 - Use the analogy of the cell as a manufacturing...Ch. 2 - Prob. 1CRCAQCh. 2 - Kareem had a nervous habit of chewing on the inner...Ch. 2 - The normal function of one tumor-suppressor gene...Ch. 2 - In their anatomy labs, many students are exposed...Ch. 2 - The sedative phenobarbital is a lipid-soluble...Ch. 2 - The drug vinblastine is used in cancer therapy to...Ch. 2 - Use the word roots listed at the start of Chapter...
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