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NEET Questions / Zoology / Excretory Products And Their Elimination
If the glomerular filtration rate (GFR) is 125 ml/min and the renal plasma flow (RPF) is 600 ml/min, what is the filtration fraction?
0.21
4.8
0.75
1.25
A patient presents with significantly reduced Glomerular Filtration Rate (GFR) but normal plasma protein levels. Which of the following is the LEAST likely cause of this condition?
Constriction of the afferent arteriole
Acute kidney injury affecting glomerular capillaries
Urinary tract obstruction
Severe liver disease
Which combination of changes would MOST effectively increase the Glomerular Filtration Rate (GFR)?
Decreased glomerular capillary hydrostatic pressure and increased Bowman's capsule hydrostatic pressure
Increased glomerular capillary hydrostatic pressure and increased Bowman's capsule hydrostatic pressure
Decreased glomerular capillary hydrostatic pressure and decreased Bowman's capsule hydrostatic pressure
Increased glomerular capillary hydrostatic pressure and decreased Bowman's capsule hydrostatic pressure
Glomerular filtration rate (GFR) is a measure of:
The amount of blood passing through the kidneys per minute
The amount of urine produced per minute
The amount of filtrate formed by the kidneys per minute
The concentration of urine
What is the initial step in urine formation?
Tubular secretion
Glomerular filtration
Tubular reabsorption
Water reabsorption
What drives the filtration of blood in the glomerulus?
Osmosis
Active transport
Blood pressure
Diffusion
Which of the following processes is NOT a part of urine formation?
Glomerular filtration
Tubular reabsorption
Tubular secretion
Micturition
What is the primary driving force for glomerular filtration?
Osmotic pressure in the Bowman's capsule
Hydrostatic pressure in the Bowman's capsule
Hydrostatic pressure in the glomerular capillaries
Active transport by podocytes
A decrease in glomerular filtration rate (GFR) would trigger which of the following compensatory mechanisms?
Increased afferent arteriolar vasoconstriction and efferent arteriolar vasodilation
Decreased renin release from the juxtaglomerular apparatus
Increased atrial natriuretic peptide (ANP) secretion
Increased afferent arteriolar vasodilation and efferent arteriolar vasoconstriction
Autoregulation of GFR (Glomerulus Filtration Rate) is takes place by
Myogenic mechanism and Tubuloglomerular feedback
Renin-angiotensin-aldosterone system and Neural regulation
Atrial natriuretic peptide and Prostaglandins
Hormonal regulation and Sympathetic nervous system
