Users Also Read
Read MCQ's/Objective questions
MCQ's Search Engine
Allosteric Effects
Amino Acid Metabolism
Anti Bodies
Antigen
ATP Synthesis and Fatty Acid Oxidation
Carbohydrate
Cell Signalling and Transduction
Cell Structure and Compartments
Chromatography
Disease Associated with Immune System
DNA Structure and Replication
Enzymes
FT IR Spectroscopy
Gas Chromatography
Gel Electrophoresis
Genetic Code and Regulation
Genetic Regulation Prokaryotes
Glycolysis
HPLC
Immune Response
Immune System
Immunological Techniques
Lipid
Membrane Structure and Functions
Minerals
Nitrogen Metabolism
NMR Spectroscopy
Nucleic Acids
Oxidative Phosphorylation
Photosynthesis and Respiration
Polymerase Chain Reaction
Protein and Nucleic Acid Interactions
Protein Purification
Protein Stability
Protein Structure
Protein Synthesis
Recombinant DNA Technology
RNA Structure
Spectroscopy
Structure and Properties of Amino Acids
Structure and Properties of Peptides
TCA Cycle
Thermodynamics and Free Energy
Transcription and Regulation
UV Luminance Spectroscopy
Water, pH and Macromolecules
Home⇒ Medical Science⇒ Biochemistry⇒ Vitamins and coenzymes
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ Vitamins are essential because the organism can't synthesize these compounds at all [other wrong options] [Discuss in forum] can synthesize these compounds partially can't synthesize these compounds in the adequate amounts none of the above |
Q22 ⇒ What compound of raw egg white causes a syndrome similar to vitamin B deficiency? Avidin [other wrong options] [Discuss in forum] Betabindin Ovalbumin Albumin |
Q23 ⇒ Dihydroorotate dehydrogenase contains 4 flavins and 4 atoms of iron per molecule [other wrong options] [Discuss in forum] 2 flavins and 4 atoms of iron per molecule 2 flavins and 2 atoms of iron per molecule 4 flavins and 2 atoms of iron per molecule |
Q24 ⇒ The vitamin riboflavin, which occurs as a yellow pigment in egg yolk and milk become colorless on reduction with Zn in acid and regained its color on re-oxidation [other wrong options] [Discuss in forum] colorless on oxidation and regained its color on reduction with Zn in acid more deep in color on reduction with Zn in acid and regained its color on re-oxidation more deep in color on oxidation and regained its color on reduction with Zn in acid |
Q25 ⇒ Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at both ends by two disulfide bonds [other wrong options] [Discuss in forum] both ends by one disulfide bond either end via two disulfide bonds either end via a single disulfide bond |
Q26 ⇒ A deficiency of thiamin produces the disease known as beri-beri [other wrong options] [Discuss in forum] scurvy cataract anemia |
Q27 ⇒ An example of a digestive hormone is gastrin [other wrong options] [Discuss in forum] lipase pepsin amylase |
Q28 ⇒ The disease Beriberi is due to a dietary deficiency in vitamin B1 (thiamine) [other wrong options] [Discuss in forum] vitamin B2 (riboflavin) vitamin B6 (pyridoxine) vitamin B12 |
Q29 ⇒ Biotin occurs mainly in combined forms bound to protein through ε-N-lysine moiety [other wrong options] [Discuss in forum] ε-S-lysine moiety ε-N-biotinyl-L-lysine ε-N-lipoyl - L-lysine |
Q30 ⇒ Which of these is a vitamin A precursor? Beta-Carotene [other wrong options] [Discuss in forum] Cobalamin Pyridoxine Thiamine |
Q31 ⇒ The absence of ascorbic acid in the human diet gives rise to pernicious anemia [other wrong options] [Discuss in forum] rickets cataract beri-beri |
Q32 ⇒ An enzyme, L-folate reductase reduces folic acid to dihydrofolic acid [other wrong options] [Discuss in forum] hydrofolic acid trihydrofolic acid tetrahydrofolic acid |
Q33 ⇒ Which of these hormones is a catecholamine? Norepinephrine [other wrong options] [Discuss in forum] Follitropin Tetraiodothyronine Tetrahydrofolate |
Q34 ⇒ A deficiency of Vitamin K results in a decreased level of prothrombin [other wrong options] [Discuss in forum] thrombin fibrin fibrinogen |
Q35 ⇒ The occurrence of metals such as iron or molybdenum in some flavoproteins can stabilize the semiquinone [other wrong options] [Discuss in forum] de-stabilize the semiquinone form chelation all of these |
Q36 ⇒ Ascorbic acid acts as an reducing agent [other wrong options] [Discuss in forum] oxidizing agent oxidizing and reducing agent both none of the above |
Q37 ⇒ Vitamin B12 is useful in the prevention and treatment of pernicious anemia [other wrong options] [Discuss in forum] scurvy cataract beri-beri |
Q38 ⇒ The most prominent role that tocopherol has in in-vitro systems is as a strong antioxidants [other wrong options] [Discuss in forum] reducing agent oxidizing agent all of these |
Q39 ⇒ A fat-soluble vitamin that regulates blood clotting is vitamin K [other wrong options] [Discuss in forum] vitamin A vitamin C niacin |
Q40 ⇒ Who discovered vitamin C (ascorbic acid)? Albert Szent-Gyorgyi [other wrong options] [Discuss in forum] Paul Berg Linus Pauling Kerry Mull is |
Or |