BIOLOGY 1002 EXAM 3 2026 SOLVED PAPER
ANSWER KEY APLUS GUIDE
◉ Kidneys.
Answer: Filter blood and produce urine
◉ Ureters.
Answer: Carry urine from kidneys to bladder
◉ Urinary bladder.
Answer: Stores urine
◉ Urethra.
Answer: Carries urine out of the body
◉ Nephron.
Answer: Functional unit of the kidney
◉ Urine.
Answer: Fluid containing wastes and excess water
,◉ Excretion.
Answer: Removal of metabolic wastes
◉ Osmoregulation.
Answer: Control of water and ion balance
◉ Filtration.
Answer: Movement of small molecules from blood into nephron
◉ Reabsorption.
Answer: Return of useful substances to blood
◉ Secretion.
Answer: Addition of wastes into filtrate
◉ Glomerulus.
Answer: Capillary cluster where filtration begins
◉ Bowman's capsule.
Answer: Collects filtrate from glomerulus
◉ Loop of Henle.
, Answer: Creates concentration gradient for water reabsorption
◉ Collecting duct.
Answer: Final pathway where urine concentration is adjusted
◉ Renal cortex.
Answer: Outer kidney region; filtration occurs
◉ Renal medulla.
Answer: Inner kidney region; contains loops of Henle
◉ Renal pelvis.
Answer: Collects urine before entering ureter
◉ Order of urine flow.
Answer: Kidney → ureter → bladder → urethra
◉ Filtrate contents.
Answer: Water, glucose, ions, urea (NO proteins or blood cells)
◉ Reabsorption location.
Answer: Mainly in proximal tubule
ANSWER KEY APLUS GUIDE
◉ Kidneys.
Answer: Filter blood and produce urine
◉ Ureters.
Answer: Carry urine from kidneys to bladder
◉ Urinary bladder.
Answer: Stores urine
◉ Urethra.
Answer: Carries urine out of the body
◉ Nephron.
Answer: Functional unit of the kidney
◉ Urine.
Answer: Fluid containing wastes and excess water
,◉ Excretion.
Answer: Removal of metabolic wastes
◉ Osmoregulation.
Answer: Control of water and ion balance
◉ Filtration.
Answer: Movement of small molecules from blood into nephron
◉ Reabsorption.
Answer: Return of useful substances to blood
◉ Secretion.
Answer: Addition of wastes into filtrate
◉ Glomerulus.
Answer: Capillary cluster where filtration begins
◉ Bowman's capsule.
Answer: Collects filtrate from glomerulus
◉ Loop of Henle.
, Answer: Creates concentration gradient for water reabsorption
◉ Collecting duct.
Answer: Final pathway where urine concentration is adjusted
◉ Renal cortex.
Answer: Outer kidney region; filtration occurs
◉ Renal medulla.
Answer: Inner kidney region; contains loops of Henle
◉ Renal pelvis.
Answer: Collects urine before entering ureter
◉ Order of urine flow.
Answer: Kidney → ureter → bladder → urethra
◉ Filtrate contents.
Answer: Water, glucose, ions, urea (NO proteins or blood cells)
◉ Reabsorption location.
Answer: Mainly in proximal tubule
