Physiology Question Set 1 – Introduction
1. Cardiac muscle is able to function as a syncytium because of the structural presence of
a) Branching fibres
b) Intercalated disc
c) Protoplasmic bridges between cells
d) Gap-junctions
2. The largest amounts of prostaglandins are seen in
a) Seminal fluid
b)CSF
c) Blood
d) Urine
3. Calcium binding protien is
a) Troponin-C
b) Calsecritin
c) Calsequestrin
d)All
4. Tropomyosin is a………..of molecular weight………. –
a) Albumin, 24000
b) Globulin, 54000
c) Globulin, 71000
d) Globulin, 51000
5. Osmolarity is
a) Osmolarity per kg of solvent
b) Osmolarity per litre of solvent
c) Moles per kg of solvent
d) Moles per litre of solvent
6. Clathrine mediates
a) Receptor mediated endocytosis
b) Exocytosis
c) Pericytosis
d) Mesocytosis
7. The motility of cell’s is due to protein
a) Motilin
b) Tubulin
c) Laminin
d)Tactilin
8. Which is true about resting membrane potential of the nerve
a) Can be measured by applying electorde over the nerve fibre
b) Potassium (Extracellular) mainly contributes
c) Equal to the resting membrane potential of the muscle
d) Reduction of RMP Inhibits a voltage dependent increase in sodium Ion permeability.
9. Nernst equation deals with
a) Oxygen uptake
b) Chloride shift
c) Cellular ATP levels
d) Plasma bicarbonate level
10. All are true about sodium potassium pump except –
a) Needs ATP
b) is inactive at 4°C
c) is elecrogenic
d) Needed for generation of action potentia
