Biology Answers

What do glycogen breakdown and synthesis have in common? (select one or more) 

a. both processes require uridine diphosphate glucose 

b. both processes produce pyrophosphate 

c. both processes involve glucose 1-phosphate 

d. both are performed in the cytoplasmic glycogen granules 

e. the same enzyme is used to introduce branches into the chain and to remove the branches 

Which of the following reactions is unique to gluconeogenesis (select one) 

a. lactate-pyruvate 

b. oxaloacetate-phosphoenolpyruvate 

c. phosphoenolpyruvate-2-phosphoglycerate 

d. glucose-6-phosphate-fructose-6-phosphate 

e. phosphoenolpyruvate 

The glyoxalate cycle allows the synthesis of glucose from (1)............ and is an example of gluconeogenesis in (2).................. 

(1) a. citrate b. acetyl-CoA c. fructose-6-phosphate d. succinate e. fumarate 

(2) a. plants, yeast, some microorganisms b.mammals, amphibian c. amphibians, birds 

Which of the following compounds is not a precursor or intermediate in the synthesis of sphingomyelin (select one) 

a. acetyl-CoA 

b. palmitoyl-CoA 

c. Serine 

d. Lysophosphatidate 

e. cytidine diphosphate-choline 

If a chemical is insoluble in water,insoluble in lipid, only soluble in organic solvents, how can the human body absorb it. Many nutritional supplements fit into this category. Thank You.

1.     You were informed that the oil spill that took place in the Kalba sea reached water desalination plants in the Fujairah area.

Formulate a hypothesis to state whether these bacteria will be able to thrive and function properly if they were to be used to treat oil spills in freshwater environments like the Fujairah desalination plants. Support your claim with scientific reasoning explaining why or why not.

Compare and contrast saturated fatty acid biosynthesis with polyketide biosynthesis to

explain how two systems are adapted for completely different functions. The former is

involved in primary metabolism and dedicated for synthesis of fatty acids whereas latter is

endowed with the task of creating a diverse range of complex natural products as shown

above.

What is the interface regulations of glycogenolysis and glycogenesis at molecular level

What is the cellular regulation of glycogenolysis

How does the concentration of potassium ions compare inside the neuron versus outside the neuron during rest?