Mcq Subject: Biochemistry
Which of the following vitamin increases the absorption of iron?
A. Vitamin A
B. Vitamin C
C. Thiamin
D. Riboflavin
View DescriptionIron enters enterocyte by :
A. Divalent cation transpoer
B. Ferropoin
C. Hephaestin
D. Ceruloplasmin
View DescriptionIn noncompetitive antagonism, the true statement is:
A. Km value decrease;.vmaxdecreases
B. no change in vmax;Km value decrease
C. V max decreased; Km value normal
D. Km value increased; V max increased
View DescriptionVitamin K in its coenzyme form is regenerated by which enzyme?
A. Glutathione reductase
B. Pyruvate carboxylase
C. Dihydrofolate reductase
D. Epoxide reductase
View DescriptionWhich of the following binds mRNA with ribosome in prokaryotes?
A. tRNA
B. Shine Dalgarno sequence
C. 7 methyl guanosine capping
D. Poly A tail
View DescriptionIn lead poisoning, there is an inhibition of some of the enzymes of the heme biosynthetic pathway. This is reflected by the accumulation of what substance in blood?
A. Uroporphyrinogen III
B. Ferrochelatase
C. Porphob I inogen
D. Delta amino levulinic acid
View DescriptionEnzymes are classified according to:
A. Action on substrate
B. Action of coenzymes
C. Nature of the enzymes
D. All of the above
View DescriptionA material that speeds up a chemical reaction without chemically becoming involved is called:
A. A solvent
B. A base
C. A catalyst
D. Thermoplastic
View DescriptionWhich TCA intermediate is used in haem synthesis:
A. Fumarate
B. Alpha keto gluterate
C. Malate
D. Succinyl CoA
View DescriptionGet More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now