Biochemistry Answers

Arachidonic acid is an important omega 3 fatty acid present in fish. Consumption of arachidonic acid has been linked to decreased incidence of heart disease and cancer, but unfortunately it oxidizes very rapidly to produce very potent off-flavors and aromas (often metallic or fishy). Draw out the mechanism showing the formation of the shortest possible aldehyde that can form from the autoxidation of arachidonic acid. Show the initiation step (not including double bond migration), hydroperoxide formation and breakdown to a product including an aldehyde

why HMP shunt called anabolic in nature?

Explain why F(ab)2 and not Fab can form a precipitate with corresponding antigens

In which process electrons stored in the form of reduced coenzyme (NADH & FADH2) are passed through 

an elaborate and highly organized chain of proteins and coenzymes. Then, they finally reach the 

molecular oxygen (terminal acceptor of electrons) with the generation of energy (ATP

Good day, please select all correct options

Oxidative phosphorylation

 A. converts NADH to NAD⁺. 

B. converts FAD to FADH₂.

 C. converts ATP to ADP. 

D. is increased in hypoxia.

 E. is decreased in anaemia.

Which property of water allows it to dissolve substances like sodium chloride and glucose but prevents it from dissolving lipids?

Cell in culture are fed glucose molecules labled with 14C at carbon 2. Trace the radioactive label through one pass through the pentose phosphate pathway?

Glucokinase act as a glucose sensor in hepatocytes (liver cell), alpha and beta cell of pancreas , enterocytes(intestinal wall cells) and the hypothalamus (a control center in the brain of numerous physiological processes) .why glucokinase perform this reaction?( 3 marks)

What is the difference between an enol phosphate ester and a normal phosphate ester that gives PEP such a high phosphoryl group transfer potential? ( 3 marks)

Why is pyruvate is not oxidized to CO2 and H20 under anaerobic conditions?(2 marks)