591. 95% of the cytoplasm of RBCs is____________?
A: Hemoglobin
(B: Enzymes)
C: Salts
D: Other proteins
592. __ of the cells of phloem are directly involved in the transport of organic solutes?
A: Parenchyma
(B: Companion cell)
C: Tracheid
D: Sieve element
593. An infectious disorder of the respiratory system is_________________?
A: Cancer
B: Asthma
(C: Tuberculosis)
D: Emphysema
594. Cuticular transpiration is _ of total transpiration?
A: 1-2%
B: 3-4%
(C: 5-7%)
D: 90%
595. According to cohesion-tension theory, tension is created by__________________?
A: Hydrogen bonding
(B: Transpiration)
C: Adhesion
D: Root pressure
596. Deoxygenated blood first enters in _ part in fishes?
A: Sinus venosus
(B: Right atrium)
C: Left atrium
D: Conus arteriosus
597. Ozone depletion occurs commonly due to_______________?
A: Carbon dioxide
B: Chlorofluorocarbons
(C: UV rays)
D: Deforestation
598. Who coined the term CELL?
(A: Schwann)
B: Schleiden
C: Robert Hook
D: Both a and b
599. lubb sound is produced due to___________________?
A: Opening of the inlet valve
B: Closure of the inlet valve
C: Opening of the outlet valve
(D: Closure of the outlet valve)
600. In the condition of high temperature, the following does not occur or occurs at a low level__________?
A: Vasodilation
B: Activation of sweat glands
C: Thermogenesis
(D: Evaporative cooling)
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