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Phosphorylase adds the Phosphate group to substrate, but phosphatase takes off the Phosphate group from the substrate. the function of phosphorylase can be considered as same as kinase.
they are all playing key roles in the cellular signalling transduction via control the phosphorylation, the phosphatase can be the negative or positive regulator for different pathways. e.g. PTP1B dephosphorylates the JAK2 to suppress leptin in the hypothalamus that contribute to weight gain.
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∙ 12y ago
Phosphorylase is an enzyme that adds a phosphate group to a molecule, typically to activate it. Phosphatase is an enzyme that removes a phosphate group from a molecule, usually to deactivate it or regulate its activity. Essentially, phosphorylase adds a phosphate group while phosphatase removes a phosphate group.
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Which of the following statements about glycogen phosphorylase (GP) is incorrect?
AMP is an inhibitor of glycogen phosphorylase.
Why are both chloroplasts and mitochondria present in phosphorylase enzymes?
Chloroplasts and mitochondria both contain phosphorylase enzymes because these enzymes are involved in energy metabolism processes that occur in both organelles. Phosphorylase enzymes are responsible for catalyzing the breakdown of glycogen into glucose units in the cytoplasm, releasing energy in the form of ATP which is essential for cellular energy production.
What happens to acid phosphatase levels when prostate cancer spreads to other parts of the body?
When prostate cancer spreads to other parts of the body, such as the bones, the acid phosphatase levels may increase. Acid phosphatase is an enzyme that can be elevated in cases of bone metastasis from prostate cancer, as it is released by prostate cancer cells in the bones. Monitoring acid phosphatase levels can help in assessing the extent of metastasis and response to treatment.
Can glycogen be converted?
No. Insulin converts glucose into glycogen for storage in the body. Glucagon converts glycogen into glucose. (it's the various cells in the body that do the conversion in either case, insulin and glucagon are hormones that induce the shift in the metabolism.)
Why is starch phosphorylase important in metabolism?
Starch phosphorylase is important in metabolism as it helps break down starch into glucose units for energy production. This enzyme plays a key role in glycogen degradation in animals and starch degradation in plants, providing essential substrates for energy metabolism. Additionally, starch phosphorylase helps regulate blood glucose levels and is involved in various cellular processes related to energy balance.
Phosphorylation of glycogen phosphorylase has what effect on the enzyme?
Activation, conversion from glycogen phosphorylase B to glycogen phosphorylase A
What are 5 specific enzymes?
Well this is a complicated question, one easy answer would be the salivary amylase, acetyl co enzyme A, B, C, D etc. 1) Each enzyme is specific : here are five out of 5,000 answers - - pyruvate decarboxylase - isocitrate lyase - acetyl-CoA transferase - phosphorylase kinase - tryptophan 2-3-dioxygenase 2) note that all enzyme suffixes are -ase. 3) phosphorylase kinase has two -ases - a nested loop - is an ON switch - phosphorylase phosphatase - also a nested loop - is an OFF switch.
Which of the following statements about glycogen phosphorylase (GP) is incorrect?
AMP is an inhibitor of glycogen phosphorylase.
What is the difference between phosphorus and phosphatase?
Phosphorus is a chemical element found in many biological molecules such as DNA and ATP. Phosphatase is an enzyme that removes phosphate groups from molecules, playing a role in cellular signaling and metabolism. In summary, phosphorus is an element, while phosphatase is an enzyme that acts on phosphate groups.
What is phosphatase test in milk?
The phosphatase test in milk measures the amount of phosphatase enzyme in the milk. The phosphatase enzyme should be inactivated by pasteurisation. If the phosphatase test is not negative, there is a problem with pasteurisation or recontamination with unpasteurised milk.
What is the substrate of phosphorylase?
The substrate of phosphorylase is glycogen. Phosphorylase is an enzyme that catalyzes the breakdown of glycogen into glucose-1-phosphate, which can then be used by cells for energy production.
Why is glycogen phosphorylase alone not sufficient in in degrading glycogen?
Glycogen phosphorylase can not cleave the alpha-1,6-glycosidic bonds at glycogen branch points
What is the last step in the sequence of events when cyclic AMP acts as a second messenger?
the last step is ofcourse glycogen breakdown.......before that inactive glycogen phosphorylase-b is activated and phosphorylated to glycogen phosphorylase-a by the help of activated phosphorylase kinase........ ......phosphorylase kinase was activated by activated protien kinase..and activated protien kinase was activated by cyclic amp...........
What are the isomers of alkaline phosphatase?
Alkaline phosphatase is an enzyme, so it does not have isomers in the same way that a compound or molecule might. However, there are different isoforms of alkaline phosphatase, such as tissue-nonspecific alkaline phosphatase (TNAP) and intestinal alkaline phosphatase (IAP), which have slightly different properties and functions in the body.
How is alkaline phosphatase testing performed?
Alkaline phosphatase testing is typically performed using a blood sample drawn from a vein in the arm. The blood sample is then sent to a laboratory for analysis. Alkaline phosphatase levels can be measured using automated biochemical analyzers in the lab.
What does the cleavage of glycogen phosphorylase release?
The cleavage of glycogen phosphorylase releases glucose-1-phosphate by breaking the glycosidic bond within glycogen. This glucose-1-phosphate can then be further processed to yield free glucose for energy production.
Where is glucose-6-phosphatase located in liver cells?
glucose-6-phosphatase is not found in the liver. it is found in the muscles
