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Question
In the experiment in human liver cells. Aspartate aminotransferase (AAT) enzyme catalyzes an important step in the metabolism of amino acids which is produced in liver cells. The production of AAT is dependent upon various hormonal stimuli. Human liver cells were cultured; half the cultured cells were used to measure the amount of AAT mRNA present, and half were used to measure the amount of AAT present. Measurements were taken at five-minute intervals following hormonal stimulation of the cells. Figure 1 shows the results of this experiment. This experiment was repeated by the addition of an inhibitor of protein synthesis along with the hormone and its result is shown in figure 2. The figure 2 shows that the AAT is a/an
In the experiment in human liver cells. Aspartate aminotransferase (AAT) enzyme catalyzes an important step in the metabolism of amino acids which is produced in liver cells. The production of AAT is dependent upon various hormonal stimuli. Human liver cells were cultured; half the cultured cells were used to measure the amount of AAT mRNA present, and half were used to measure the amount of AAT present. Measurements were taken at five-minute intervals following hormonal stimulation of the cells. Figure 1 shows the results of this experiment. This experiment was repeated by the addition of an inhibitor of protein synthesis along with the hormone and its result is shown in figure 2. The figure 2 shows that the AAT is a/an
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Solution
The correct option is A Protein
Correct answer AThe experiment description states that AAT is an enzyme, and enzymes are proteins. Figure 2 confirms this, because when an inhibitor of protein synthesis was added to the mix, no AAT was made.Enzymes are biological catalysts - catalysts are substances that increase the rate of chemical reactions without being used up. Enzymes are also proteins that are folded into complex shapes that allow smaller molecules to fit into them. The place where these substrate molecules fit is called the active site.
Aspartate aminotransferase is a pyridoxal phosphate-dependent transaminase enzyme that was first described by Arthur Karmen and colleagues in 1954.
Aspartate transaminase catalyzes the interconversion of aspartate and α-ketoglutarate to oxaloacetate and glutamate.Aspartate (Asp) + α-ketoglutarate ↔ oxaloacetate + glutamate (Glu)
Correct answer A
The experiment description states that AAT is an enzyme, and enzymes are proteins. Figure 2 confirms this, because when an inhibitor of protein synthesis was added to the mix, no AAT was made.
Enzymes are biological catalysts - catalysts are substances that increase the rate of chemical reactions without being used up. Enzymes are also proteins that are folded into complex shapes that allow smaller molecules to fit into them. The place where these substrate molecules fit is called the active site.
Aspartate aminotransferase is a pyridoxal phosphate-dependent transaminase enzyme that was first described by Arthur Karmen and colleagues in 1954.
Aspartate transaminase catalyzes the interconversion of aspartate and α-ketoglutarate to oxaloacetate and glutamate.
Aspartate (Asp) + α-ketoglutarate ↔ oxaloacetate + glutamate (Glu)
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