Concept explainers
(a)
Interpretation:
The type of the glycogen synthesis mechanism should be determined.
Concept introduction:
Glycogen synthesis is the process of formation of glycogen from the glucose monomer units. By this process, glucose is stored in the liver cells in the form of glycogen biomacromolecule. This reaction is catalyzed by the glycogen synthase enzyme. The main hormone behind this process is insulin, which signals liver cells to take up glucose and convert it into glycogen.
(b)
Interpretation:
The type of the fatty acid synthesis mechanism should be determined.
Concept introduction:
Fatty acid is an aliphatic
(c)
Interpretation:
The type of mechanism followed by cholesterol synthesis.
Concept introduction:
Cholesterol is the sterol, which is mainly found in animal tissues. In the tissues and blood plasma, cholesterol is found in the free state or bound with the fatty acid chain to form cholesteryl ester. It is formed by fusing four rings together and plays various functions in the human body.
(d)
Interpretation:
The mechanism followed by DNA synthesis process.
Concept introduction:
The building block of DNA and RNA is termed as the nucleotides. Nucleotides are the organic molecules, that plays important roles during cell signaling, enzymatic reactions, and
(e)
Interpretation:
The mechanism followed by RNA synthesis process.
Concept introduction:
The building block of DNA and RNA is termed as the nucleotides. Nucleotides are the organic molecules, that plays important roles during cell signaling, enzymatic reactions, and metabolic reactions. It contains a phosphate group, a ribose sugar, and a nitrogenous base (pyrimidine or purine).
(f)
Interpretation:
Type of mechanism followed by protein synthesis.
Concept introduction:
Protein synthesis (translation) is a process of generating new protein sequences inside the cell. This process takes place in the cytoplasm of the cell. this process is balanced by the degradation or export of cellular proteins. It is constituted of three steps, initiation, elongation, and termination.
Want to see the full answer?
Check out a sample textbook solutionChapter 31 Solutions
Biochemistry
- Calculate the number of ATP produced from oxidation of 1 molecule of glucosearrow_forwardExample 1: 1. Suppose an enzyme (MW = 5,000 g/mole) has a concentration of 0.05 mg/L. If the kcat is 1 x 10 s, what is the theoretical maximum reaction velocity for the enzyme? A) 1050 µM/s. B) 100 µM/s. C) 150 μM/s. D) 105 μM/s.arrow_forwardIn 1956, E. P. Kennedy and S. B. Weiss published their study of membrane lipid phosphatidylcholine (lecithin) synthesis in rat liver. Their hypothesis was that phosphocholine joined with some cellular component to yield lecithin. In an earlier experiment, incubating 32 P-labeled phosphocholine at physiological temperature (37 °C) with broken cells from rat liver yielded labeled lecithin. This became their assay for the enzymes involved in lecithin synthesis. Determine the optimal pH for this enzyme and characterize the enzyme activity at different pH values. -O-P-O-CH2-CH₁₂-N(CH3)3 Phosphocholine H₂C-O-C-R HC-O-C-R2 + + + Cell fraction + ? HC-O-P-O-CH₁₂-CH₂-N(CH), O Phosphatidylcholine The researchers then centrifuged the broken cell preparation to separate the membranes from the soluble proteins. They tested three preparations: whole extract, membranes, and soluble proteins. Table 1 summarizes the results. Table 1: Cell fraction requirement for incorporation of 32p-phosphocholine into…arrow_forward
- Researchers isolated an unknown substance, X, from rabbit muscle. They determined its structure from the following observations and experiments. (a) Qualitative analysis showed that X was composed entirely of C, H, and O. A weighed sample of X was completely oxidized and the H2O and CO2 produced were measured. This quantitative analysis revealed that X contained 40.00% C, 6.71% H, and 53.29% O by weight. (b) The molecular mass of X, as determined by mass spectrometry, was 90.00 atomic mass units (u). (c) Infrared spectroscopy showed that X contained one double bond. (d) X dissolved readily in water, and the solution demonstrated optical activity when tested in a polarimeter. (e) The aqueous solution of X is acidic. What is the empirical formula of X?arrow_forwardShow work. don't give Ai generated solution....give correct solutionarrow_forwardBiochemistry What is the process of "transamination" in either the muscles or the liver, that involves keto acid or glutamic acid? Please explain how the steps work. Thank you!arrow_forward
- Biochemistry Please help. Thank you What is the importance of glutamic acid in the metabolism of nitrogen from amino acids? (we know therole; it’s used to remove the nitrogen from amino acids so that the remaining carbon skeleton can bebroken down by the “usual” pathways, but what is the important, unique role that only glutamicacid/glutamate can do?)arrow_forwardBiochemistry Please help. Thank you When carbamyl phosphate is joined to L-ornathine, where does the energy for the reaction come from?arrow_forwardBiochemistry Question Please help. Thank you What is the function of glutamate dehydrogenase?arrow_forward
- Biochemistry Question Please help. Thank you How and why does a high protein diet affect the enzymes of the urea cycle?arrow_forwardBiochemistry What is the importance of the glucose-alanine cycle?arrow_forwardBiochemistry Assuming 2.5 molecules of ATP per oxidation of NADH/(H+) and 1.5molecules of ATP per oxidation of FADH2, how many ATP are produced per molecule of pyruvate? Please help. Thank youarrow_forward
- BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningBiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage Learning