Regiuar Exam 02, Penta 03, (Radius)

1.Example of negative feedback mechanism includes all except:

A. Regulation of plasma CO2 concentration

B. Acid base balance

C. Electrolyte balance.

D. Generation of nerve signals.

2. Which is wrong about Composition of cell membrane?

A. Protein 55%

B. Phospholipid 25%

C. Cholesterol 4%

D. Oligosaccharides 3%

3. Which one of th following is non membranous organelle?

A. Endoplasmic reticulum

B. Cilia

C. Peroxisomes.

D. lysosome

4. Function of cell membrane includes all except:

A. Packaging of materials for transport

B. Regulates cell to cell interaction

C. Serves as a site of receptors

D. Maintains the structural integrity of the cell

5. Functions of SER includes:

A. Initial glycosylation of glycoprotein

B. Post translational modifications of protein.

C. Synthesis of steroid hormones

D. Synthesis of carbohydrate

6. Which one of following is not a lysosomal enzyme:

A. Phospholipases

B. Oxidoreductase

C. Sulfatases

D. B- glucorunidase

7. Which is not an example of intermediate filament:

A. Vimntin

B. Keratin

C. Lamin

D. Actin

8. The phase where cells are said to be in a resting stage is-

A. G0 phase

B. G1 phase

C. S phase

D. G2 phase

9. In which step of mitotic cell division Each choromosome divides longitudinally to form two chromosomes callled sister chromatids?

A. Prophase

B. Metaphase

C. Anaphase

D. Telophase

10. Which one is wrong?

A. Duration of mitosis is short, and meiosis is long .

B. Chromosomes not visible in Mitosis, visible in meiosis.

C. Redistribution of genetic materials occur in meiosis not mitosis

D. 2 daughter cell are produced in mitosis, In meiosis number is 4.

11. Which one of following is an example of Secondary active transport?

A. Na+ - K+ pump

B. H+ pump.

C. Na+ H+ counter transport

D. Absorption of water soluble vitamins from GIT

12. Which is wrong about Characteristics of active transport/primary active transport/

A. Transport occurs against chemical or electrical gradient.

B. Membrane may not be present.

C. Carrier protein is necessary.

D. It can be saturated

13. Which on is ligand gated ion channel?

A. Na+ channel

B. Chloride channel

C. Calcium channel

D. Acetylcholine channel

14. Which is wrong RMP?

A. Neuron : -90 mV

B. SA nodal fiber : -55 to -60 mV

C. Skeletal muscle: -80 to -90 mV

D. RBC: -9 mV

15. Repolarization due to :

A. Influx of Na+

B. Efflux of K+

C. Influx of Ca+

D. Closure of K+ channel

16. Steps in skeletal muscle contraction includes all except:

A. Increased Na & K conductance in end plate membrane

B. Binding of Ca2+ to troponin C, uncovering myosin-binding sites on actin.

C. Release of Ca2+ from troponin

D. Inward spread of depolarization along T tubules.

17. Normal vale of albumin is :

A. 2.8 g/dL

B. 2.3 g/dL

C. 4.8 g/dL

D. 6.8 g/dL

18. Which one is wrong about globulin?

A. Maintains 20% of the total colloidal osmotic pressure of blood.

B. Alpha 1 globulin transports Fe as transferrin.

C. Alpha 2 globulin transports Cu as ceruloplasmin.

D. Gamma globulin acts as antibody.

19. How much haemoglobin is contained by each RBC?

A. 29 mg

B. 29 ng

C. 29 pg

D. 14 gm

20. Condition where ESR decreases is:

A. MI

B. Acute rheumatic fever

C. Hemorrhage

D. Hemochromatosis

21. Which one is not secreted by basophil?

A. histamine,

B. bradykinin,

C. somatostatin,

D. heparin,

22. Which one is wrong about Oxygen independent mechanisms of phagocytosis?

A. Lysozyme: Hydrolyses bacterial cell wall.

B. Major basic protein: : Chelates iron

C. Defensins: Cytotoxic to microbes.

D. Elastase & metalloproteinase in neutrophil: Attack collagen

23. Which one is true in haemolytic jaundice:

A. Raised conjugated Serum Bilirubin

B. ALP high rise

C. Increased Urobilinogen

D. Prothombin time Prolonged

24. Factors not necessary for development of RBC :

A. galactose

B. Vitamin B12

C. Porphyrins

D. Pyridoxine

25. Not true about Differential count (DC) of WBC-

A. Neutrophil: 50-70%

B. Lymphocyte: 20 - 40 %

C. Monocyte: 2-8%

D. Eosinophil:3-6%

Regiuar Exam 02, Penta 03, (Radius)

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