Biology Forums - Study Force

This is my last exercise I have to do. Does anyone have all the answers? I have all the previous labs completed so I will be sure to return the favor if someone pings me for previous answers. I would appreciate it! Thanks!

Glomerular Filtration
Activity 1:  Effect of Arteriole Diameter on Glomerular Filtration

1.   Compare this data with your baseline data.  How did increasing the afferent arteriole radius affect glomerular filtration rate? 
2.   Under these conditions, does the fluid flow through the nephron? 
3.   What is the glomerular filtration rate? 
4.   How does it compare to your baseline data, and why? 
5.   How did increasing the efferent radius affect glomerular filtration rate? 
6.   How did decreasing the efferent radius affect glomerular filtration rate? 
7.   Physiologically, what could be the cause of a change in afferent or efferent arteriole radius? 

Activity 2:  Effect of Pressure on Glomerular Filtration

1.   As pressure increased, what happened to the pressure in the glomerulus? 
2.   What happened to the glomerular filtration rate? 
3.   How did the urine volume change? 
4.   How could increased urine volume be viewed as being beneficial to the body? 

Activity 3:  Combined Effects

1.   What happened to the glomerular filtration rate and urine volume after you reduced the pressure? 
2.   How could you adjust the afferent or efferent radius to compensate for the effect of the reduced pressure on glomerular filtration rate and urine volume?  Use the simulation to determine your answer. 
3.   What changes are seen in nephron function when the valve is closed? 
4.   Why were these changes seen? 
5.   Is the kidney functional when the glomerular filtration rate is zero?  Explain your answer. 
6.   What is the major “ingredient” that needs to be removed from the blood?
7.   Studies on aging have demonstrated that some nephrons may fail as we get older.  Will this be a problem regarding urine formation?
8.   If blood pressure went down – for example, as the result of blood loss – what changes would the kidney need to make to maintain its normal filtration rate? 

Simulating Urine Formation
Activity 4:  Effect of solute Gradient on Urine Concentration

1.   How did the urine solute concentration change as the concentration gradient of the interstitial fluid increased? 
2.   What happened to the urine volume as the concentration gradient increased?   Why? 
3.   By increasing the concentration gradient, what are you doing to the urine that is formed? 
4.   Predict what would happen to urine volume if you did not add ADH to the collecting duct. 

Activity 5:  Reabsorption of Glucose

1.   What happens to the glucose concentration as you add glucose carriers to the system? 
2.   At what point does the glucose concentration in the urine become zero? 
3.   What would you expect to find in the urine of a diabetic?  Why? 
 
Activity 6:  Effect of Hormones on Reabsorption

1.   Which hormone has the greater effect on urine volume?  Why? 
2.   How does the addition of aldosterone affect the concentration of potassium in the urine? 
3.   How does the addition of ADH affect the concentration of potassium in the urine? How does this compare to the effect of adding aldosterone, with respect to potassium concentration in the urine? 
4.   How does the addition of both hormones affect 1) urine concentration, 2) urine volume, and 3) potassium concentration? 
5.   If ADH were not used, how would the urine concentration vary?  Explain your answer. 

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If you have all the answers I Can donate $10 thanks would that work?

I'll do it for 10 bucks. Is this the same as Renal System Physiology (Exercise 9)? :thi:

I need help the same thing. Could you help me out also.

Biolove,

It is the same as Renal System Physiology (Exercise 9). I'd be happy to donate money too. This site has been a huge help for me through Human Anatomy and Physiology. Thanx for everything!

Donated  ;D

Thanks for the donation, Charlie.

BioLove I would be willing to donate as well. :)
I need help withe all activities above.
Im in very need of help.:/

Okay, sure... Charlie, this is for Exercise 9: Renal System Physiology Worksheet ???

DONATED  :D
COuld you help me out plssss

Let me put the file together, and I will send it.

Yea

Can you guys send me a PM with your emails?

Thanks so mucH! :D

sent it

sent...

 lol Donated As Well!!!!!!

What's your email address...

I can donate as well please help

please donate 10 dollars (you see the copyright thing on the bottom), place your mouse over it, and you'll see a donate link, click it, and there you are

Sent

just donated please help

Bio-Man I really need help on Exerise 9 Renal System Physiology too, I can donate also if you can help me.

Just Donated Please help with physio ex 8.0 exercise 9 Renal System.  Thanks

has anyone got the file I dontated and need it by the end of today . Can anyone please help

Please don't cheat people out of their money, you did not donate and there is no record of you having donated, in fact, you don't even have a donated tag.

I did donate i clicked on make a donation under actions. If that is not the right link please let me know. I am really trying to get this done

You have to have paypal, click the donate button, send 10 dollars

I sent u a copy of my reciept so u can let me know if I dontated correctly or not

Hey hateshw, what's your email, so that I can send it to you, also, can you PM me the name of your PayPal account?

If I donate 10 dollars could I as well get help with the M09 renal system for the lab

Exercise 9 right? Yeah I will send it to you, send me a PM of your email once u've done so.

How do I send you a confirmation of my email? I did donate!

I sent out a PM with my email!!!!  8)

Activity 2:  Effect of Pressure on Glomerular Filtration

1.   As pressure increased, what happened to the pressure in the glomerulus? 
2.   What happened to the glomerular filtration rate? 
3.   How did the urine volume change? 
4.   How could increased urine volume be viewed as being beneficial to the body? 

Please start a new topic ;)

Glomerular filtration rate increased. GFR increased because the net filtration pressure was increased. Net filtration pressure relies on glomerular hydrostatic pressure, which rises when the pressure in the beaker is increased.

Bio love do you still have this information.

Yep

I'm just finding this sight and I am struggling could someone help me with some answers please? I do have answers to some of the other labs that I can share. I have Physioex 9.0.

i need help with this too

I Need help on the same assignment above, I'm so behind yet working so hard, anyone with any help with the physio 9 exercise 9 renal sys physio 1-49 answers please help a fellow military man... Thanks

thanks!!~

Thank you!

Thanks!