The normal blood pressure in man is ___________
80/120 mm Hg
120/80 mm Hg
120/100 mm Hg
100/80 mm Hg
Much of the transpiration takes place through ___________.
stomata
lenticels
cuticle
epidermis
The ascent of sap in plants takes place due to __________.
root pressure
transpiration pull
both a and b
osmosis
Stomata open and close due to _____________.
presence of valves
hormonal control
turgor pressure of guard cells
concentration gradient of the gases
The double membraned structure surrounding the heart is called _____________.
plasmalemma
pleural membrane
tonoplast
pericardium
The main cells present in lymph are ___________.
red blood cells
platelets
lymphocytes
monocytes
Pulse beat is measured in _____________
nerve
artery
vein
heart
Deoxygenated blood is carried by _____________.
pulmonary artery
hepatic vein
renal vein
all of the above
The right side of the heart deals with ___________.
oxygenated blood
deoxygenated blood
mixture of oxygenated and deoxygenated blood
either a or b at a time
Minerals are absorbed into the cells by _____________.
diffusion
active transport
a, b or c