This is the general equation for cellular respiration: C6H12O6 + 6 O2 ? 6 CO2 + 6 H2O + Energy. Carbon dioxide (CO2) is released during which of the following stages of cellular respiration? (choose all that apply)
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citric acid cycle |
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oxidative phosphorylation |
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glycolysis |
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pyruvate oxidation |
In: Biology
Discuss the regulation of glycolysis. In your answer ensure you list the key reactions, clearly highlighting the metabolic intermediates, enzymes and hormones involved in the pathway and its regulation. You should also highlight where the regulation differs between muscle and liver cells 20 Marks
In: Biology
The Embden-Meyerhof, the pentose phosphate, and the Entner-Doudoroff pathways are all examples of . . .
| A. |
glycolysis pathways that yield ATP and pyruvate. |
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| B. |
alternative names for the TCA cycle. |
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| C. |
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| D. |
electron transport systems. |
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| E. |
different pathways for fixing carbon. |
In: Biology
Briefly explain how the enzyme urease is utilized by certain bacteria.
In: Biology
What role does diffusion play in enzyme catalyzed reactions?
In: Biology
How is enzyme activity (binding to substrate) detected in the ELISA test?
In: Biology
competitive and non-competitive inhibition of enzyme function, and why it is important.
In: Biology
please i want computer typing answer for A and B
The following techniques will be used for purification of an enzyme from cultured cells; salt fractionation, affinity chromatography, ion-exchange chromatography, homogenization and gel filtration chromatography. The protocol states that the techniques should be used in the order listed above.
a) What is wrong with the order of techniques as they are listed?
b) How does each technique contribute to the process of obtaining a pure enzyme?
In: Biology
pBR322 is a plasmid. It has two antibiotic resistance genes a the amp gene encoding the ampicillin resistance protein and the gene yet encoding the tetracycline resistance protein. In the plasmid, there is only one EcoRV restriction enzyme recognition sequence within the Tet gene. One EcoRI restriction enzyme recognition sequence between Tet gene and amp gene. Is amp gene a regulated gene or nonregulated gene. justify
In: Biology
2. a. explain how a mutation in pyruvate dehydrogenase kinase that increases the enzymes Km will affect the activity of the complex pyruvate dehydrogenase?
b. explain how pyruvate dehydrogenase complex is controlled during physical activity by PDP?
c. how can a mutation that affects the binding sight of calcium ions on the pdp enzyme affect the activity of phosphatase enzyme?
and how is it likely to affect pdc during physical activity?
In: Biology