The principal nitrogenous exceretory compound in humans is synthesised
in kidneys but eliminated mostly through the liver
in kidneys as well as eliminated by kidneys
In liver and also eliminated by the same through bile
in the liver, but eliminated mostly through the kidneys
The figure shows a human urinary system with structure labelled A to D. Select option, which correctly identifies them and gives their characteristics and of function.
A - adrenal gland - located at the anterior part of kidney. Secrete catecholamines, which stimulate glycogen breakdown
B- pelvis -board funnel-shaped space inner to hilum, directly connected to loops of Henle
C - mediulla-inner zone of kidney and contains complete nephrons.
D - cortex -outer part of kidney and do not contain any part of nephrons
Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin?
Human urine is usually acidic because
The sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries.
Excreted plasma proteins are acidic
potassium and sodium exchange generates acidity
hydrogen ions are actively secreted into the filtrate
Sliding filament theory can be best explained as
When myofilaments slide pass each other actin filaments shorten while mysoin filament do not shorten
Actin and Myosin filaments shorten and slide pass each other
Actin and Myosin filaments do not shorten but rather slide pass each other
When myofilaments slide pass each other, Myosin filaments shorten while Actin filaments do not shorten