BIOLOGY: CONCEPTS AND INVEST. ACCESS
5th Edition
ISBN: 9781264448678
Author: Hoefnagels
Publisher: MCG
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Chapter 22.4, Problem 3MC
Summary Introduction
To determine:
The two lateral meristems in a woody stem or root and the tissues that each meristem produce.
Concept introduction:
Meristematic tissues or meristems are the most actively growing tissues. The reason for they being the most actively growing tissues is that they have large concentrations of plant hormone called auxins which are responsible for very rapid and highly active rate of cell division. They are present at the tips of growing roots and shoots.
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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-haemoglobin
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
Which 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.
Chapter 22 Solutions
BIOLOGY: CONCEPTS AND INVEST. ACCESS
Ch. 22.1 - Prob. 1MCCh. 22.1 - Prob. 2MCCh. 22.1 - Prob. 3MCCh. 22.1 - Prob. 4MCCh. 22.2 - Prob. 1MCCh. 22.2 - How does the structure of dermal tissue contribute...Ch. 22.2 - Compare and contrast the structure and function of...Ch. 22.3 - Prob. 1MCCh. 22.3 - Prob. 2MCCh. 22.3 - Prob. 3MC
Ch. 22.3 - Prob. 4MCCh. 22.4 - Prob. 1MCCh. 22.4 - Prob. 2MCCh. 22.4 - Prob. 3MCCh. 22.4 - Prob. 4MCCh. 22.4 - Prob. 5MCCh. 22.4 - Prob. 6MCCh. 22.5 - Prob. 1MCCh. 22.5 - Prob. 2MCCh. 22 - Prob. 1MCQCh. 22 - What is an example of a specialized plant stem...Ch. 22 - Which of the following is a supportive cell type...Ch. 22 - Prob. 4MCQCh. 22 - Prob. 5MCQCh. 22 - Prob. 6MCQCh. 22 - Prob. 7MCQCh. 22 - What structures provide abundant surface area for...Ch. 22 - Ground tissue occupies the a. root cortex. b. leaf...Ch. 22 - Prob. 10MCQCh. 22 - Prob. 1WIOCh. 22 - Prob. 2WIOCh. 22 - Many biology labs use slides of root tips to...Ch. 22 - Prob. 4WIOCh. 22 - Propose why it might be more adaptive for a tree...Ch. 22 - Prob. 6WIOCh. 22 - Prob. 7WIOCh. 22 - Explain how conditions in the terrestrial...Ch. 22 - Prob. 9WIOCh. 22 - Prob. 10WIOCh. 22 - List a function of each organ, tissue, and cell...Ch. 22 - Prob. 1PITCh. 22 - Prob. 2PITCh. 22 - Prob. 3PITCh. 22 - Prob. 4PIT
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