QuizMaster

Who first observed and thus hypothesized that new cells are formed from previously existing living cell?

A. Theodor Schwann and Schleiden
B. Rudolph Virchows
C. Louis Pasteur
D. Both b and c

In condition of high temperature, following does not occur or occurs at low level__________?

A. Vasodilation
B. Activation of sweat glands
C. Thermogenesis
D. Evaporative cooling

“lubb” sound is produced due to___________________?

A. Opening of inlet valve
B. Closure of inlet valve
C. Opening of outlet valve
D. Closure of outlet valve

Who coined the term CELL?

A. Schwann
B. Schleiden
C. Robert Hook
D. Both a and b

Ozone depletion occurs commonly due to_______________?

A. Carbon dioxide
B. Chlorofluorocarbons
C. UV rays
D. Deforestation

Deoxygenated blood first enters in _________ part in fishes?

A. Sinus venosus
B. Right atrium
C. Left atrium
D. Conus arteriosus

According to cohesion-tension theory, tension is created by__________________?

A. Hydrogen bonding
B. Transpiration
C. Adhesion
D. Root prerssure

Cuticular transpiration is _____________ of total transpiration?

A. 1-2%
B. 3-4%
C. 5-7%
D. 90%

An infectious disorder of respiratory system is_________________?

A. Cancer
B. Asthma
C. Tuberculosis
D. Emphysema

_________________ cells of phloem are directly involved in transport of organic solutes?

A. Parenchyma
B. Companion cell
C. Tracheid
D. Sieve element