BIO 253 FINAL EXAM 195 REAL LATEST AND
VERIFIED QUESTIONS WITH CORRECT
ELABORATE SOLUTIONS| ALREADY GRADED
A| ACE YOUR GRADES.
What is filtrate? - Correct Answer-mostly water, electrolytes, nutrients, and
waste products. Glucose is normal in filtrate.
Reabsorption in the Nephron Loop - Correct Answer-Only water is absorbed in
the descending limb. Na+ chloride is absorbed in the ascending limb (no
water).
Status of water coming out of nephron loop? - Correct Answer-@ Lowest
concentration (diluted)
Process taking place in nephron loop? - Correct Answer-Countercurrent
mechanism (dilutes the urine). Can also create concentrated urine from the
Na+ absorbed in the ascending limb.
Tubular secretion - Correct Answer--selectively moves substances from blood
to filtrate in renal tubules and collecting ducts
-From blood to tubular
,-Usually in the distal tubule
-K+, H+, Uric acid, Penicillin are secreted
Hormones that regulate kidney function - Correct Answer-directly :
ADH
Aldosterone
ANH
Indirectly :
Renin (created by kidney)
Angiotensin
Aldosterone function - Correct Answer--decreases sodium and water loss in
urine by returning sodium and water to the blood
Aldosterone: Target Cells - Correct Answer-kidneys
Organelles are - Correct Answer-
Organs of the Urinary system - Correct Answer-kidneys, ureters, urinary
bladder, urethra
,Draw and label a kidney with the following terms: Cortex, Medulla, Pelvis,
renal artery, renal vein, ureter, nephron - Correct Answer-
Functional unit of the kidney - Correct Answer-nephron
1 million per kidney!
What parts make up the nephron? - Correct Answer-Renal corpuscle
Renal tubule
Glomerulus (capillaries that filter the blood plasma)
Bowman's capsule (surrounds the glomerulus)
Efferent arteriole
Loop of henle
What is the glomerulus made of? - Correct Answer-capillaries
Function of a nephron - Correct Answer-filter blood and produce urine
Two nephron types - Correct Answer-juxtamedullary and cortical
, Juxtamedullary nephrons - Correct Answer--Long nephron loops deeply invade
medulla
-Ascending limbs have thick and thin segments
-Important in production of concentrated urine
-found at the boundary of the cortex and medulla
Cortical nephrons - Correct Answer--85% of all nephrons
-short nephron loops
-efferent arterioles branch into peritubular capillaries around PCT and DCT
How is urine made in the kidney? - Correct Answer-1.)Reabsorption - moving
substances with tubule into the blood.
2.)Filtration - occurs in the glomerulus or renal corpuscle
3.)Secretion
4.)Filtration
Driving force for filtration - Correct Answer-hydrostatic pressure or BP
What fluid comes out of the glomerulus? - Correct Answer-filtrate
VERIFIED QUESTIONS WITH CORRECT
ELABORATE SOLUTIONS| ALREADY GRADED
A| ACE YOUR GRADES.
What is filtrate? - Correct Answer-mostly water, electrolytes, nutrients, and
waste products. Glucose is normal in filtrate.
Reabsorption in the Nephron Loop - Correct Answer-Only water is absorbed in
the descending limb. Na+ chloride is absorbed in the ascending limb (no
water).
Status of water coming out of nephron loop? - Correct Answer-@ Lowest
concentration (diluted)
Process taking place in nephron loop? - Correct Answer-Countercurrent
mechanism (dilutes the urine). Can also create concentrated urine from the
Na+ absorbed in the ascending limb.
Tubular secretion - Correct Answer--selectively moves substances from blood
to filtrate in renal tubules and collecting ducts
-From blood to tubular
,-Usually in the distal tubule
-K+, H+, Uric acid, Penicillin are secreted
Hormones that regulate kidney function - Correct Answer-directly :
ADH
Aldosterone
ANH
Indirectly :
Renin (created by kidney)
Angiotensin
Aldosterone function - Correct Answer--decreases sodium and water loss in
urine by returning sodium and water to the blood
Aldosterone: Target Cells - Correct Answer-kidneys
Organelles are - Correct Answer-
Organs of the Urinary system - Correct Answer-kidneys, ureters, urinary
bladder, urethra
,Draw and label a kidney with the following terms: Cortex, Medulla, Pelvis,
renal artery, renal vein, ureter, nephron - Correct Answer-
Functional unit of the kidney - Correct Answer-nephron
1 million per kidney!
What parts make up the nephron? - Correct Answer-Renal corpuscle
Renal tubule
Glomerulus (capillaries that filter the blood plasma)
Bowman's capsule (surrounds the glomerulus)
Efferent arteriole
Loop of henle
What is the glomerulus made of? - Correct Answer-capillaries
Function of a nephron - Correct Answer-filter blood and produce urine
Two nephron types - Correct Answer-juxtamedullary and cortical
, Juxtamedullary nephrons - Correct Answer--Long nephron loops deeply invade
medulla
-Ascending limbs have thick and thin segments
-Important in production of concentrated urine
-found at the boundary of the cortex and medulla
Cortical nephrons - Correct Answer--85% of all nephrons
-short nephron loops
-efferent arterioles branch into peritubular capillaries around PCT and DCT
How is urine made in the kidney? - Correct Answer-1.)Reabsorption - moving
substances with tubule into the blood.
2.)Filtration - occurs in the glomerulus or renal corpuscle
3.)Secretion
4.)Filtration
Driving force for filtration - Correct Answer-hydrostatic pressure or BP
What fluid comes out of the glomerulus? - Correct Answer-filtrate
