EBK BROCK BIOLOGY OF MICROORGANISMS
15th Edition
ISBN: 8220103633352
Author: Stahl
Publisher: PEARSON
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Chapter 3.14, Problem 1CR
Summary Introduction
Amino acids play a major role in biological processes of all organisms and it acts as building blocks. The organisms obtain amino acids from environment by biosynthesis of glucose or other carbon sources. There are twenty essential amino acids identified so far. An amino acid family is group that is structurally related to each other. The amino acids in the amino acid family have common biosynthetic pathways.
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19.
What statement is correct regarding the synthesis of actin monomers?
a)
They would be synthesized on free ribosomes, with a mitochondrial localization sequence that would be recognized by a receptor on the mitochondrial membrane.
b)
They would be synthesized on free ribosomes, with a nuclear localization sequence that would facilitate its passage through a nuclear pore.
c)
They would be synthesized on free ribosomes, with no signal sequence.
d)
They would have a signal sequence on its N terminus that would be recognized by a signal recognition particle (SRP) in the cytoplasm that would dock it on the endoplasmic reticulum.
e)
They would be synthesized in the endoplasmic reticulum, processed in the Golgi and sent to the nucleus in appropriated tagged vesicles.
Which of the following about adenosine triphosphate (ATP) is FALSE?
A)
There are two phosphoanhydride bonds with similar energies
B)
ATP can be used as a substrate to make cyclic AMP (cAMP) after a cell has been stimulated with certain specific hormones
C)
The γ-phosphate can be transferred (e.g. to chemical group on a protein enzyme) such as the Na+-K+ pump, which is part of a coupling mechanism that allows otherwise unfavourable reactions to proceed
No possible answer provided
E)
The large, negative, free-energy change upon hydrolysis of “high-energy” compounds like ATP is partly due to the creation of resonance stabilized products
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Chapter 3 Solutions
EBK BROCK BIOLOGY OF MICROORGANISMS
Ch. 3.1 - Which four chemical elements make up the bulk of a...Ch. 3.1 - Which two classes of macromolecules contain most...Ch. 3.1 - Differentiate between trace metals and growth...Ch. 3.1 - Prob. 1CRCh. 3.2 - Compare and contrast simple transporters, the...Ch. 3.2 - Prob. 2MQCh. 3.2 - Cells of Escherichia coli transport lactose via...Ch. 3.3 - Prob. 1MQCh. 3.3 - Prob. 2MQCh. 3.3 - Prob. 1CR
Ch. 3.4 - What is free energy?Ch. 3.4 - Prob. 2MQCh. 3.4 - Using Table 3.2, calculate G0 for the reaction...Ch. 3.4 - Prob. 1CRCh. 3.5 - Prob. 1MQCh. 3.5 - Prob. 2MQCh. 3.5 - Prob. 3MQCh. 3.5 - Prob. 1CRCh. 3.6 - Prob. 1MQCh. 3.6 - Prob. 2MQCh. 3.6 - Prob. 3MQCh. 3.6 - Prob. 1CRCh. 3.7 - How much free energy is released when ATP is...Ch. 3.7 - Prob. 2MQCh. 3.7 - Prob. 3MQCh. 3.7 - Prob. 1CRCh. 3.8 - Which reactions in glycolysis are redox steps?Ch. 3.8 - Prob. 2MQCh. 3.8 - Prob. 3MQCh. 3.8 - How is ATP made in fermentation and in...Ch. 3.9 - How many molecules of CO2, NADH, and FADH2 are...Ch. 3.9 - What two major roles do the citric acid cycle and...Ch. 3.9 - Why is the glyoxylate cycle necessary for growth...Ch. 3.9 - Prob. 1CRCh. 3.10 - Prob. 1MQCh. 3.10 - Which electron carriers described in this section...Ch. 3.10 - List some of the key electron carriers found in...Ch. 3.11 - How do electron transport reactions generate the...Ch. 3.11 - How much energy is released per NADH oxidized...Ch. 3.11 - What structure in the cell links the proton motive...Ch. 3.11 - Prob. 1CRCh. 3.12 - Prob. 1MQCh. 3.12 - Prob. 2MQCh. 3.12 - Prob. 3MQCh. 3.12 - What is the major difference between aerobic...Ch. 3.13 - What form of activated glucose is used in the...Ch. 3.13 - Prob. 2MQCh. 3.13 - What functions does the pentose phosphate pathway...Ch. 3.13 - What is the importance of the enzyme...Ch. 3.14 - Prob. 1MQCh. 3.14 - List the steps required for the cell to...Ch. 3.14 - Which nitrogen bases are purines and which are...Ch. 3.14 - Prob. 1CRCh. 3.15 - Prob. 1MQCh. 3.15 - Prob. 2MQCh. 3.15 - Describe the process by which a fatty acid such as...Ch. 3 - Using the data of Figure 3.10, predict the...Ch. 3 - Prob. 2AQ
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