Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
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Chapter 18, Problem 37RE
REFLECT AND APPLY How can the synthesis and breakdown of fructose-2,6-bisphosphate be controlled independently?
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Chapter 18 Solutions
Biochemistry
Ch. 18 - RECALL Why is it essential that the mechanisms...Ch. 18 - RECALL How does phosphorolysis differ from...Ch. 18 - RECALL Why is it advantageous that breakdown of...Ch. 18 - RECALL Briefly outline the role of UDPG in...Ch. 18 - RECALL Name two control mechanisms that play a...Ch. 18 - REFLECT AND APPLY Does the net gain of ATP in...Ch. 18 - REFLECT AND APPLY In metabolism,...Ch. 18 - Prob. 8RECh. 18 - BIOCHEMICAL CONNECTIONS You are planning to go on...Ch. 18 - BIOCHEMICAL CONNECTIONS Would eating candy bars,...
Ch. 18 - Prob. 11RECh. 18 - Prob. 12RECh. 18 - REFLECT AND APPLY A researcher claims to have...Ch. 18 - REFLECT AND APPLY What is the source of the energy...Ch. 18 - Prob. 15RECh. 18 - Prob. 16RECh. 18 - Prob. 17RECh. 18 - Prob. 18RECh. 18 - Prob. 19RECh. 18 - RECALL What reactions in this chapter require...Ch. 18 - RECALL Which steps of glycolysis are irreversible?...Ch. 18 - RECALL What is the role of biotin in...Ch. 18 - RECALL How does the role of glucose-6-phosphate in...Ch. 18 - REFLECT AND APPLY Avidin, a protein found in egg...Ch. 18 - REFLECT AND APPLY How does the hydrolysis of...Ch. 18 - Prob. 26RECh. 18 - Prob. 27RECh. 18 - Prob. 28RECh. 18 - Prob. 29RECh. 18 - Prob. 30RECh. 18 - Prob. 31RECh. 18 - REFLECT AND APPLY How can different time scales...Ch. 18 - REFLECT AND APPLY How do the control mechanisms in...Ch. 18 - Prob. 34RECh. 18 - Prob. 35RECh. 18 - Prob. 36RECh. 18 - REFLECT AND APPLY How can the synthesis and...Ch. 18 - REFLECT AND APPLY How is it advantageous for...Ch. 18 - Prob. 39RECh. 18 - Prob. 40RECh. 18 - Prob. 41RECh. 18 - Prob. 42RECh. 18 - RECALL What roles do glucagon and epinephrine play...Ch. 18 - Prob. 44RECh. 18 - RECALL List three differences in structure or...Ch. 18 - RECALL What are four possible metabolic fates of...Ch. 18 - BIOCHEMICAL CONNECTIONS What is the connection...Ch. 18 - Prob. 48RECh. 18 - RECALL What is a major difference between...Ch. 18 - Prob. 50RECh. 18 - Prob. 51RECh. 18 - Prob. 52RECh. 18 - REFLECT AND APPLY Suggest a reason why a different...Ch. 18 - REFLECT AND APPLY Explain how the pentose...Ch. 18 - REFLECT AND APPLY Why is it reasonable to expect...Ch. 18 - REFLECT AND APPLY How would it affect the...
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- REFLECT AND APPLY In the mitochondrion is a short-chain carnitine acyltransferase that can take acetyl groups from acetyl-CoA and transfer them to carnitine. How might this be related to lipid biosynthesis?arrow_forwardREFLECT AND APPLY Avidin, a protein found in egg whites, binds to biotin so strongly that it inhibits enzymes that require biotin. What is the effect of avidin on glycogen formation? On gluconeogenesis? On the pentose phosphate pathway?arrow_forwardREFLECT AND APPLY Explain how glycogen phosphorylase is controlled allosterically and by covalent modification.arrow_forward
- REFLECT AND APPLY What is the role of citrate in the transport of acetyl groups from the mitochondrion to the cytosol?arrow_forwardREFLECT AND APPLY (a) Where in an earlier chapter have we en- countered something comparable to the action of the acyl carrier protein (ACP) of fatty acid synthesis? (b) What is a critical feature of the action of the ACP?arrow_forwardREFLECT AND APPLY A researcher claims to have discovered a variant form of glycogen. The variation is that it has very few branches (every 50 glucose residues or so) and that the branches are only three residues long. Is it likely that this discovery will be confirmed by later work?arrow_forward
- REFLECT AND APPLY What is the source of the energy needed to incorporate glucose residues into glycogen? How is it used?arrow_forwardREFLECT AND APPLY You are in the process of determining the amino acid sequence of a protein and must reconcile contradictory results. In one trial, you determine a sequence with glycine as the N-terminal amino acid and asparagine as the C-terminal amino acid. In another trial, your results indicate phenylalanine as the N-terminal amino acid and alanine as the C-terminal amino acid. How do you reconcile this apparent contradiction?arrow_forwardREFLECT AND APPLY How does the hydrolysis of fructose-1,6-bisphosphate bring about the reversal of one of the physiologically irreversible steps of glycolysis?arrow_forward
- REFLECT AND APPLY Consider the structures of arabinose and ribose. Explain why nucleotide derivatives of arabinose, such as ara-C and ara-A, are effective metabolic poisons.arrow_forwardREFLECT AND APPLY Why is it useful to plot rate data for enzymatic reactions as a straight line rather than as a curve?arrow_forwardREFLECT AND APPLY What is the relationship between a transition-state analog and the induced-fit model of enzyme kinetics?arrow_forward
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