By counting number of QRS complex, one may get which information?

(1) Rate of breathing

(2) cardiac output

(3) Heart beat rate

(4) stroke volume

The deviation from the characteristic ECG indicates a possible abnormality; this information can be utilized in which field of Biology?

(1) Clinical Biology

(2) Biotechnology

(3) Molecular Biology

(4) Pedigree analysis

Depolarisation and repolarisation actually initiate ___________ in different chambers of heart?

(1) contraction and relaxation

(2) relaxation and contraction

(3) thickening and thinning

(4) thinning and thickening

Three lead configuration of ECG has arrangement?

(1) one to each wrist and one to right ankle.

(2) one to each ankle and one to right wrist.

(3) one to each wrist and one to left ankle

(4) one to each ankle and one to left wrist.

Which wave of ECG represents repolarization?

(1) P wave

(2) QRS complex

(3) ST wave

(4) T wave

The passage of blood from left atrium to body is

(1) left atrium – left ventricle – Aorta – Body

(2) left atrium – right ventricle – Aorta – Body

(3) left atrium – left ventricle – Pulmonary Artery – Body

(4) left atrium – left ventricle – Pulmonary Veins – Body

The passage of blood from right atrium to body is

(1) right atrium–right ventricle–pulmonary vein–body

(2) right atrium–right ventricle–pulmonary artery–lung

(3) right atrium– left ventricle–pulmonary vein–body

(4)right atrium–left ventricle–pulmonary artery–lung

The pathway of single circulation is

(1) Heart – body – gills – Heart

(2) Heart – gills – body – Heart

(3) Heart – body –gills – body – heart

(4) body – heart – gills – Heart

In single circulation, the heart pumps

(1) oxygenated blood

(2) deoxygenated blood

(3) mixed blood

(4) blood–nutrients

What does systemic circulation provide to tissue?

(1) nutrient

(2) oxygen

(3) other essential substances

(4) all of these