Pearson eText Principles of Human Physiology -- Instant Access (Pearson+)
6th Edition
ISBN: 9780135213001
Author: Cindy Stanfield
Publisher: PEARSON+
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Chapter 2.2, Problem 2.2.2QC
Summary Introduction
To determine:
The basic structure of the plasma membrane and four functions of membrane proteins.
Introduction:
The cell membrane is also termed as the plasma membrane, which separates the inside of the cell from the outside environment. It controls the movement of substances internal and exterior of the cell and cell organelles. It is also involved in many processes like cell adhesion and cell signaling.
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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
Pearson eText Principles of Human Physiology -- Instant Access (Pearson+)
Ch. 2.1 - Prob. 2.1.1QCCh. 2.1 - Prob. 2.1.2QCCh. 2.1 - Prob. 2.1.3QCCh. 2.1 -
List the four types of chemical interactions...Ch. 2.2 - How does the impact Of Tay Sachs on the...Ch. 2.2 - In order to eradicate genetic diseases, such as...Ch. 2.2 - What would be the advantages and disadvantages of...Ch. 2.2 - Prob. 2.2.1QCCh. 2.2 - Prob. 2.2.2QCCh. 2.2 - Prob. 2.2.3QC
Ch. 2.2 - Prob. 2.2.4QCCh. 2.4 - Prob. 2.3.1QCCh. 2.4 - Describe the role of transmembrane proteins in the...Ch. 2.5 -
Why is only maternal mitochondrial DNA passed to...Ch. 2.5 -
How can mDNA. Be used to determine ancestry?
Ch. 2.5 - What are some diseases related to genetic...Ch. 2.5 -
Define transcription and translation. Where in...Ch. 2.5 -
Describe the functions of RNA polymerase in...Ch. 2.5 -
What is the name of the first of a polypeptide...Ch. 2.5 - Prob. 1aCTQCh. 2.5 - Why would preventing the larger ribosomal subunit...Ch. 2.5 - If ricin B induced exocytosis rather than...Ch. 2.6 -
Explain why and how a mutation in a...Ch. 2.6 -
Which characteristic(s) of cancer cells are...Ch. 2.6 - Prob. 3CTQCh. 2.6 - Prob. 2.5.1QCCh. 2.6 - Name the five stages of mitosis. During which...Ch. 2 - Prob. 1ECh. 2 - Prob. 2ECh. 2 -
Which of the following molecules is not a...Ch. 2 - Hydrogen bonding between the amino hydrogen of one...Ch. 2 -
Which of the following nucleic acids is not a...Ch. 2 - Prob. 6ECh. 2 - Prob. 7ECh. 2 - Prob. 8ECh. 2 - Prob. 9ECh. 2 - Prob. 10ECh. 2 - Prob. 11ECh. 2 - Prob. 12ECh. 2 - Prob. 13ECh. 2 -
During which phase of mitosis is the mitotic...Ch. 2 -
During which phase of mitosis do the chromosome...Ch. 2 -
Monosaccharides are (polar/nonpolar/amphipathic)...Ch. 2 - Triglycerides are (polar/nonpolar/amphipathic)...Ch. 2 - Prob. 18ECh. 2 - Prob. 19ECh. 2 - Prob. 20ECh. 2 - Prob. 21ECh. 2 - Prob. 22ECh. 2 - Prob. 23ECh. 2 - Prob. 24ECh. 2 - Prob. 25ECh. 2 - Prob. 26ECh. 2 -
The first section of a polypeptide to be...Ch. 2 -
Replication of DNA occurs during...Ch. 2 -
Division of the cytoplasm into two daughter...Ch. 2 - Prob. 30ECh. 2 - Prob. 31ECh. 2 - Prob. 32ECh. 2 -
Describe the structure of the plasma membrane....Ch. 2 - Prob. 34ECh. 2 - Prob. 35ECh. 2 - Prob. 36ECh. 2 - Prob. 37ECh. 2 - Prob. 38ECh. 2 -
Draw a flowchart showing the synthesis of...Ch. 2 -
Plasma, which is the fluid portion of blood, is...Ch. 2 -
Name some factors that cause cancer and potential...Ch. 2 - Prob. 42ECh. 2 - Prob. 43ECh. 2 - Prob. 44E
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