Biochemistry FMGE Simple Recall Questions

Biochemistry FMGE Simple Recall Questions: High yield subject in the FMGE/MCI exam with 13 marks from pure Biochemistry & 10 more marks shall be expected from related subjects like Pediatrics in FMGE.

“All enzymes are not proteins.” This statement is justified by:

All enzymes do not follow the Michaelis Menten hypothesis

Antibodies take part in the catalysis of many reactions

Metals are involved in attachment to enzymes and catalysts

rRNA act as Ribozyme

Correct! Wrong!

Enzymes mediating the transfer of one molecule to another are:

Oxidases

Lysases

Peptidases

Transferases

Correct! Wrong!

In which of the following reactions is magnesium required:

Na+K+ ATPase

Dismutase

Phosphatase

Aldolase

Correct! Wrong!

In oxidative phosphorylation, the ATP production and respiratory chain are linked by:

Chemical methods

Physical methods

Chemiosmotic methods

Conformational changes

Correct! Wrong!

Thiamine level is best monitored by:

Transketolase level in RBC

Thiamine level in blood

G-6-PD activity

Reticulocytosis

Correct! Wrong!

Vitamin B12 and folic acid supplementation in megaloblastic anemialeads to the improvement of anemia due to:

Increased hemoglobin production

Erythroid hyperplasia

Increased iron absorption

Increased DNA synthesis in bone marrow

Correct! Wrong!

Nitric oxide synthase:

Is inhibited by Ca++

Catalyses a dioxygenase reaction

Accepts electrons from NADH

Requires NADH, FAD, FMN & heme iron

Correct! Wrong!

Phenylalanine is the precursor of all the following, except:

Tyrosine

Epinephrine

Thyroxine

Melatonin

Correct! Wrong!

In a well-fed state, acetyl CoA obtained from the diet is least used in the synthesis of:

Palmity CoA

Citrate

Acetoacetate

Oxalosuccinate

Correct! Wrong!

Substrate level phosphorylation in the citric acid cycle is seen in the conversion of -ketoglutarate

Succinyl CoA to succinate

Fumarate to malate

Succinate to fumarate

Isocitrate to Alpha ketoglutarate

Correct! Wrong!

Apo B48 and apo B100 are expressed as two different apo-proteins because of difference in:

RNA editing

RNA splicing

Chromosomal loci

Apo-B gene

Correct! Wrong!

All the following can be used to detect mutation, except:

Single strand conformational polymorphism

Ligase chain reaction

Polymerase chain reaction

DNA sequencing

Correct! Wrong!

Which of the following is true regarding hydroxy ethyl starch:

It is an anesthetic agent

It is a plasma expander

It is a crystalloid

Used as a nutritional agent

Correct! Wrong!

Elasticity of the corneal layer of SKIN is due to the presence of:

Histidine

Keratin

Lysine

Cysteine

Correct! Wrong!

In dividing cells, spindle is formed by:

Ubiquitin

Tubulin

Laminin

Keratin

Correct! Wrong!

Entropy in a biological system is constant because:

It is an open system

It is a closed system

It is a governed by vitalism

Has exothermic-endothermic reactions

Correct! Wrong!

Which of the following is true regarding a system which favours oscillatory responses:

Has proportional component

Has a greater gain

Has a lesser gain

Positive FEEDBACK system

Correct! Wrong!

Highest binding of iron is seen with:

Transferrin

Ferritin

Haemoglobin

Ceruloplasmin

Correct! Wrong!

The main enzyme responsible for activation of xenobiotics is:

Cytochrome P-450

Glutathione S-transferase

NADPH cytochrome P-450-reductase

Glucoronyl transferase

Correct! Wrong!

Decreased glycolytic activity impairs oxygen transport by hemoglobin due to:

Reduced energy production

Decreased production of 2,3- biphospho-glycerate

Reduced synthesis of hemoglobin

Low level of oxygen

Correct! Wrong!

The primary role of chaperones is to help in:

Protein synthesis

Protein degradation

Protein denaturation

Protein folding

Correct! Wrong!

The conversion of an optically pure isomer (enantiomer) into a mixture of equal amounts of both dextro and levo form is called as:

Polymerization

Stereoisomerization

Racemization

Fractionation

Correct! Wrong!

The protein-rich in basic amino acids, which functions in the packaging of DNA in chromosomes, is:

Histone

Collagen

Hyaluronic acid binding protein

Fibrinogen

Correct! Wrong!

An enzyme involved in the catabolism of fructose to pyruvate in the liver is:

Glyceraldehyde-3-phosphate dehydrogenase

Phosphoglucomutase

Lactate dehydrogenase

Glucokinase

Correct! Wrong!

The buffering capacity of a buffer is maximum at pH equal to:

0.5 pKa

pKa

pKa+1

2pKa

Correct! Wrong!

Which of the following is present intracellulary in muscle cells:

Insulin

Corticosteroid

Epinephrine

Glucagon

Correct! Wrong!

Which of the following is not a post transcriptional modification of RNA?

Splicing

5 capping polyadenylation

Glycosylation

Correct! Wrong!

Serum total lactate dehydrogenase level will NOT be raised in:

Muscle crush injury

Stroke

Myocardial infarction

Hemolysis

Correct! Wrong!

Porphobilinogen in urine produces pink colour with:

Fouchet’s reagent

Benedict’s reagent

Sodium nitropruside

Ehrlich’s aldehyde reagent

Correct! Wrong!

The collagen triple helix structure is not found in:

Cytoplasm.

Golgi apparatus.

Lumen of endoplasmic reticulum

Intracellular vesicles.

Correct! Wrong!

Biochemistry FMGE Past Paper Questions

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