Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 10.2PS
Localization of Molecules and Functions Within the Prokaryotic Cell. Repeat Problem 10-1, but indicate where in a prokaryotic cell you would expect to find each of the listed molecules or functions. Choices: cytoplasm (C), plasma membrane (PM), exterior of cell (EX), or not present at all (NO).
(a) Coenzyme A
(b) Coenzyme Q
(c)
(d) Succinate dehydrogenase
(e) Malate dehydrogenase
(f) Fatty acid elongation
(g) Dicarboxylate carrier
(h) Conversion of lactate into pyruvate
(i) ATP synthase
(j) Accumulation of a high proton concentration
(k) Respirasomes
(l) Crista junctions
(m) Fatty acyl CoA translocase
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1)
A) Add a phosphate molecule onto adenosine. What kind of reaction was performed? What kind of bond is formed? What is the name of this molecule? Draw the structure on paper.
B) How would you modify this molecule to make ATP? Draw the structure of ATP.
Thank you!
[Ten - Biomolecules]
INSTRUCTIONS
— Answer the following multiple-choice questions and EXPLAIN in 3-5 sentences why you chose that answer.
— Answer properly
Questions;
Thomas was purifying an enzyme from a homogenate of muscle cells. He went through seven steps of purification and found that the enzyme activity was the same as the homogenate value. On the eighth step, when the protein washighly pure, the enzyme activity rose to five times that of the homogenate value. Can you suggest a possible reason?
A. the homogenate assay was wrong
B. step eight has co-purified an activator of the enzyme.
C. the enzyme has an inhibitor present in the muscle cell homogenate
D. the temperature at step eight was just right for the enzyme activity.
Follow up question:...
The answer given in problem 31. 17 is inadequate for me, and I simply don't understand the explanation for the answer...
The problem is: Ribosoms were isolated from bacteria grown in a "heavy" medium (13C and 15N) and from bacteria grown in "light" medium (12C and 14N). These 70S ribosoms were added to an in vitro system engaged in protein synthesis. An aliquot removal serveral hours later was analyzed by density-gradient centrifugation. How many bands of 70S ribosoms would you expect to see in the density gradient?
Is it possible to give a more comprehensive explanation? :)
Expert Solution
Step 1
Introduction :-
A ribosome is a sophisticated molecular machine that produces proteins from amino acids during the process of protein synthesis, also known as translation. Protein synthesis is a fundamental operation that all live cells must carry out.
Step 2
Answer :-
One light band, one heavy band, a hybrid of light 30S and heavy 50S, and a hybrid…
Chapter 10 Solutions
Becker's World of the Cell (9th Edition)
Ch. 10 - Aerobic respiration uses an external electron...Ch. 10 - Working with 3-D TEM often involves the difficult...Ch. 10 - Explain how the location and organization of the...Ch. 10 - As pyruvate is completely oxidized to CO2 in the...Ch. 10 - Why are the electron carriers in the ETS arranged...Ch. 10 - How is the chemical energy that is released as...Ch. 10 - How does the ATP synthase complex convert the...Ch. 10 - Where do the 38 ATP molecules produced during...Ch. 10 - Localization of Molecules and Functions Within the...Ch. 10 - Localization of Molecules and Functions Within the...
Ch. 10 - True or False. Indicate whether each of the...Ch. 10 - Mitochondrial Transport. For aerobic respiration,...Ch. 10 - Completing the Pathway. In each of the following...Ch. 10 - QUANTITATIVE The Calculating Cell Biologist. Use...Ch. 10 - Prob. 10.7PSCh. 10 - Regulation of Catabolism. Explain the advantage to...Ch. 10 - Lethal Synthesis. The leaves of Dichapetalum...Ch. 10 - QUANTITATIVE Oxidation of Saturated Fatty Acids....Ch. 10 - Oxidation of Cytosolic NADH. In some eukaryotic...Ch. 10 - Brown Fat and Thermogenin. Most newborn mammals,...Ch. 10 - Prob. 10.13PS
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