Save
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

chapter 38

bio exam 2

QuestionAnswer
1. An increase in the extracellular concentration of salts will cause body cells to A. lose water and shrink. B. lose water and swell. C. gain water and shrink. D. gain water and swell. E. metabolize water and heat up. A. lose water and shrink.
2. The three main forms of nitrogenous wastes found in animals are A. ammonia, urea, and uric acid. B. ammonia, urea, and uracil. C. ammonia, urea, and amino acids. D. uracil, urea, and uric acid. E. amino acids, uracil, and uric acid. A. ammonia, urea, and uric acid.
3. Select the pair in which the nitrogenous waste is INCORRECTLY matched with the benefit of its excretion. A. urea: low toxicity relative to ammonia B. uric acid: can be stored and excreted as a precipitate E. urea: very insoluble in water E. urea: very insoluble in water
4. Consider a tadpole becoming a toad. You would expect to find it changing its form of nitrogenous waste from A. ammonia to urea. B. urea, ammonia. C. uric acid, urea. D. urea, uric acid. E. uric acid, ammonia. A. ammonia to urea.
5. What is the most toxic primary nitrogenous waste? A. ammonia B. uric acid C. urea D. urine A. ammonia
6. What is the correct rank order for relative amount of water (most to least) of the primary nitrogenous wastes used by different animals? A. ammonia  urea  uric acid B. uric acid  ammonia  urea C. urea  uric acid  ammonia A. ammonia  urea  uric acid
7. What is the correct rank order for relative energetic cost (most to least) of the primary nitrogenous wastes used by different animals? A. ammonia  urea  uric acid B. uric acid  urea  ammonia C. urea  uric acid  ammonia B. uric acid  urea  ammonia
8. Ammonia, urea, and uric acid A. are all nitrogenous wastes. B. all require large amounts of water for excretion. C. all require about the same amount of energy to produce. D. are all equally toxic. E. are all produced by the kidney. A. are all nitrogenous wastes.
9. The total solute concentration of a solution of water and other substances (salts, proteins, etc.) is referred to specifically as its A. osmolarity. B. tonicity. C. salinity. D. specific gravity. E. density. A. osmolarity.
10. The osmoregulatory and ionoregulatory problems facing a freshwater fish are A. loss of water and loss of ions. B. loss of water and gain of ions. C. gain of water and loss of ions. D. gain of water and gain of ions. C. gain of water and loss of ions.
11. The osmoregulatory and ionoregulatory problems facing a saltwater fish are A. loss of water and loss of ions. B. loss of water and gain of ions. C. gain of water and loss of ions. B. loss of water and gain of ions.
12. Which strategies would a seawater fish with an internal osmolarit L livinginternal ion and water homeostasis? A. produce copious amounts of dilute urine B. drink seawater and actively excrete salts out of their bodies across the gills B. drink seawater and actively excrete salts out of their bodies across the gills
13. Humans cannot survive at sea by drinking salt water. However, survive by drinking salt water. What do they have that humans do not? D. Use of ammonia as their primary nitrogenous waste E. Specialized gill epithelia E. Specialized gill epithelia
14. When studying fluid and electrolyte loss during exercise, Robert Cade found that human sweat has sodium and chloride concentrations that are A. higher than those found in the blood. B. lower than those found in the blood. B. lower than those found in the blood.
16. The excretory structures of annelids are referred to as A. flame cells. B. kidneys. C. protonephridia. D. metanephridia. E. malpighian tubules. D. metanephridia.
17. A biologist discovers a new species . What excretory system adaptations to this extreme environment might the biologist expect to find? A. very long malpighian tubules B. very short malpighian tubules D. nephrons with long loops of Henle D. nephrons with long loops of Henle
18. In the normal path of urine from the kidney to the bladder and out of the body, which structure, if blocked, would prevent urine from reaching any of the other structures? A. collecting duct B. renal pelvis C. ureter D. urethra A. collecting duct
19. What can be said about the transfer of fluid from the glomerulus to Bowman's capsule? A. It results from active transport. D. It is mainly a consequence of blood pressure force-filtering the fluid. D. It is mainly a consequence of blood pressure force-filtering the fluid.
20. The tuft of fenestrated capillaries at which filtration takes place in the mammalian kidney is referred to as the A. glomerulus. B. Bowman's capsule. C. renal corpuscle. D. proximal convoluted tubule. E. collecting duct. A. glomerulus.
21. What is the path of fluid as it is filtered from the blood and flows through the nephron? A. Bowman's capsule  proximal convoluted tubule  loop of Henle  distal convoluted tubule  collecting duct B. collecting duct  Bowman's capsule  pro A. Bowman's capsule  proximal convoluted tubule  loop of Henle  distal convoluted tubule  collecting duct
22. The bulk of the reabsorption of useful materials by the kidney takes place in the A. renal corpuscle. B. proximal convoluted tubule. C. loop of Henle. D. distal convoluted tubule. E. collecting ducts. B. proximal convoluted tubule.
23. The ascending portion of the loop of Henle is A. permeable to water and impermeable to sodium. B. permeable to water and permeable to sodium. C. impermeable to water and permeable to sodium. D. impermeable to water and impermeable to sodium. C. impermeable to water and permeable to sodium.
25. The digestion and utilization of this material creates the greatest need for nitrogenous waste secretion by the kidneys. A. collagen B. amylose C. oleic acid D. glucose E. lactose A. collagen
26. Imagine you are examining a small mammal that lives under desert conditions its blood would be A. high, and that its urine would be more concentrated than its blood. B. high, and that its urine would be less concentrated than its blood. A. high, and that its urine would be more concentrated than its blood.
27. In the collecting ducts of the kidney, antidiuretic hormone promotes water conservation by increasing the levels of A. aquaporins. B. G-protein coupled receptors. C. vasopressin. D. Na+/K+ ATPase. E. Na+/glucose symporters. A. aquaporins.
35. Imagine that a mutation occurs such that an insect lacks . Predict the consequences for this creature. B. The ability to filter waste would be severely impaired. C. The ability to secrete waste would be severely impaired. C. The ability to secrete waste would be severely impaired.
36. Predict what would happen if the proximal lost its ability to reabsorb materials. A. The volume of the urine would increase dramatically. D. Glucose would lost unnecessarily. E. Glucose, K+ ions, Na+ ions, and HCO3- ions would be lost unne E. Glucose, K+ ions, Na+ ions, and HCO3- ions would be lost unnecessarily.
37. Predict what would happen to the volume of the urine if the descending portion of the loop of Henle ceased to function. A. The volume of the urine would not change. B. The volume of the urine would increase. . A. The volume of the urine would not change. .
Created by: 448303988896850
Popular Standardized Tests sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards