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6525292
Carbohydrates metabolism
Descrição
medicate and innovate for services the medical students group
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we
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do
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medicine
bio mcq
educación secundaria
Quiz por
Nada Medhat
, atualizado more than 1 year ago
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Nada Medhat
quase 8 anos atrás
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Resumo de Recurso
Questão 1
Questão
1- which one of the following statements concerning glycolysis is correct ?
Responda
a- the conversion of glucose to lactate requires the presence of oxygen
b- fructose 2.6- bis phosphate is a potent inhibitor of phosphofructokinase
c- the regulated reactions are also the irreversible reactions
d- the conversion of glucose to lactate yields two ATP and two NADH
Questão 2
Questão
2- the reaction catalyzed by phosphofructokinase-1 :-
Responda
a- is activated by high concentrations of ATP and citrate.
b- uses fructose 1-phosphate as substrate
c- is the rate limiting reaction of the glycolytic pathway
d- is inhibited by fructose 2,6- bis phosphate
Questão 3
Questão
3- which of the following statements best describes glucose :-
Responda
a- it is a ketose and usually exists as a fructose ring in solution
b- it is a C-4 epimer of galactose
c- it is utilized in biological systems only in the L-isomeric form
d- it is produced from dietary starch by the action of alpha amylase
Questão 4
Questão
4- a patient urine is giving +ve Benedict test , but with - ve glucose oxidase test . the sugar present in urine might be :-
Responda
a) glucose
b) sucrose
c) galactose
d) starch
Questão 5
Questão
5- Milk intolerance that may follow gastroenteritis is due to loss of which of the following :-
Responda
a) Amylase
b) Lactase
c) Sucrase
d) Cellulase
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