BIO 2301 FINAL comprehensive
Questions and Answers with Verified
Solutions
Question 1:
Filtration
Answer:
hydrostatic pressure forces water and solutes from glomerular capillaries
into Bowman's capsule
Question 2:
Reabsorption
Answer:
active transport, diffusion, and osmosis recovers much of what was
filtered (renal tubules to peritubular capillaries)
Question 3:
Secretion
Answer:
some materials not filtered are actively transported into distal convoluted
tubule
Question 4:
Where does filtration occur?
Answer:
glomerulus
,Question 5:
Where does filtration occur?
Answer:
proximal convoluted tubule
Question 6:
Where does reabsorption occur?
Answer:
proximal convoluted tubule
Question 7:
What blood elements are not filtered across the glomerular membrane?
Answer:
large negatively charged particles (mainly proteins) due to membrane
being too small
Question 8:
Where is the filtrate initially collected?
Answer:
Bowman's capsule
Question 9:
Glomerular Filtration Rate
Answer:
amount of fluid filtered per unit of time (125 ml/min). It needs to be
maintained at a regular rate
, Question 10:
Clearance
Answer:
Volume of plasma "cleared" of a particular substance per unit of time (not
reabsorbed)
Question 11:
What does it mean if a molecule has a clearance of zero?
Answer:
The substance was completely reabsorbed
Question 12:
Regulation of GFR
Answer:
Body monitors BP and tubular osmolarity in order to regulate GFR
Question 13:
What are the responses to low blood pressure?
Answer:
dilate afferent arteriole, increase renin secretion
Question 14:
What are the responses to low flow rate and low osmolarity?*
Answer:
dilate afferent arteriole, increase renin secretion
Questions and Answers with Verified
Solutions
Question 1:
Filtration
Answer:
hydrostatic pressure forces water and solutes from glomerular capillaries
into Bowman's capsule
Question 2:
Reabsorption
Answer:
active transport, diffusion, and osmosis recovers much of what was
filtered (renal tubules to peritubular capillaries)
Question 3:
Secretion
Answer:
some materials not filtered are actively transported into distal convoluted
tubule
Question 4:
Where does filtration occur?
Answer:
glomerulus
,Question 5:
Where does filtration occur?
Answer:
proximal convoluted tubule
Question 6:
Where does reabsorption occur?
Answer:
proximal convoluted tubule
Question 7:
What blood elements are not filtered across the glomerular membrane?
Answer:
large negatively charged particles (mainly proteins) due to membrane
being too small
Question 8:
Where is the filtrate initially collected?
Answer:
Bowman's capsule
Question 9:
Glomerular Filtration Rate
Answer:
amount of fluid filtered per unit of time (125 ml/min). It needs to be
maintained at a regular rate
, Question 10:
Clearance
Answer:
Volume of plasma "cleared" of a particular substance per unit of time (not
reabsorbed)
Question 11:
What does it mean if a molecule has a clearance of zero?
Answer:
The substance was completely reabsorbed
Question 12:
Regulation of GFR
Answer:
Body monitors BP and tubular osmolarity in order to regulate GFR
Question 13:
What are the responses to low blood pressure?
Answer:
dilate afferent arteriole, increase renin secretion
Question 14:
What are the responses to low flow rate and low osmolarity?*
Answer:
dilate afferent arteriole, increase renin secretion
