Biology: Concepts and Investigations
5th Edition
ISBN: 9781260542202
Author: Marielle Hoefnagels
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 5.2, Problem 2MC
Summary Introduction
To describe:
The relationships among chloroplast, photosystems, stroma, grana, and thylakoids.
Concept introduction:
The eukaryotic cells are named so because of the presence of the membrane-bound nucleus in them. The eukaryotic cells are different from the prokaryotic cells as they have a nucleus and double membrane-bound organelles. They have extensive internal compartmentalization and each organelle perform its own specific function.
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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 5 Solutions
Biology: Concepts and Investigations
Ch. 5.1 - Prob. 1MCCh. 5.1 - Prob. 2MCCh. 5.1 - Prob. 3MCCh. 5.1 - Prob. 4MCCh. 5.1 - How did the origin of photosynthesis alter Earths...Ch. 5.2 - Prob. 1MCCh. 5.2 - Prob. 2MCCh. 5.2 - Prob. 3MCCh. 5.2 - How does the reaction center chlorophyll interact...Ch. 5.3 - Prob. 1MC
Ch. 5.3 - Prob. 2MCCh. 5.4 - Prob. 1MCCh. 5.4 - Prob. 2MCCh. 5.4 - Prob. 3MCCh. 5.4 - Prob. 4MCCh. 5.5 - What is the relationship between the light...Ch. 5.5 - Prob. 2MCCh. 5.6 - Why is the Calvin cycle also called the C3...Ch. 5.6 - Prob. 2MCCh. 5.6 - What conditions maximize photorespiration?Ch. 5.6 - Prob. 4MCCh. 5.6 - Prob. 5MCCh. 5.7 - Prob. 1MCCh. 5.7 - Prob. 2MCCh. 5 - Where does the energy come from to drive...Ch. 5 - Prob. 2MCQCh. 5 - Prob. 3MCQCh. 5 - The evolution of photosynthesis resulted in a. an...Ch. 5 - Prob. 5MCQCh. 5 - Prob. 6MCQCh. 5 - Prob. 7MCQCh. 5 - Imagine that multiple simultaneous volcanic...Ch. 5 - Prob. 2WIOCh. 5 - Prob. 3WIOCh. 5 - Would a plant grow belier in a room painted blue...Ch. 5 - Determine whether each of the following molecules...Ch. 5 - Over the past decades, the CO2 concentration in...Ch. 5 - How does photosynthesis help compensate for...Ch. 5 - How is the CAM pathway adaptive in a desert...Ch. 5 - Explain how C4 photosynthesis is based on a...Ch. 5 - Prob. 1PITCh. 5 - 2. How would you incorporate the Calvin cycle,...Ch. 5 - Prob. 3PITCh. 5 - Prob. 4PIT
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- 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-haemoglobinarrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forward
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