Acid-base balance in the human body is regulated by:

1. heart and lungs 2. liver and hypothalamus
3. kidneys and lungs 4. lungs and heart

Subtopic:  Human Kidney: Functions |
 80%

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A substance is neither filtered, reabsorbed, nor secreted in the kidney. This substance would be most likely found in:
1. glomerular filtrate
2. blood in the renal vein
3. Collecting duct
4. Loop of Henle

Subtopic:  Formation of Urine |
 61%

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Loops of Henle is found in the nephron of:
1. insects
2. fish
3. birds
4. amphibians

Subtopic:  Nitrogenous Excretory Products |
 60%

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What will be seen in a fish living in a marine environment?
1. They do not drink the water in their surroundings.
2. They drink the water in their surroundings.
3. They move monovalent ions into their bodies through active transport across their epithelial outer tissue.
4. They move monovalent ions out of their bodies through active transport across their epithelial outer tissue.

Subtopic:  Nitrogenous Excretory Products |

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A vertebrate osmoconformer is:
1. reptile
2. freshwater fish
3. dlophin
4. hagfish

Subtopic:  Nitrogenous Excretory Products |

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The urine concentrating ability of mammals and birds is correlated with the length of their:

1. ureters 2. proximal convoluted tubules
3. distal convoluted tubules 4. loops of Henle
Subtopic:  Human Kidney: Functions | Concentration of Urine |
 83%
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The part of the nephron that is least permeable to water is the:

1. ascending limb of the loop of Henle 2. descending limb of the loop of Henle
3. collecting duct 4. proximal convoluted tubule
Subtopic:  Nephron Part 1 | Nephron Part 2 |
 79%
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Glomerular ultrafiltrate would normally not contain:
1. plasma proteins
2. glucose and amino acids
3. water
4. urea

Subtopic:  Formation of Urine |
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Bony fishes are:

1. ureotelic 2. ammonotelic
3. uricotelic 4. Either 1 or 3
Subtopic:  Nitrogenous Excretory Products |
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Urea in humans is synthesized in:

1. Kidneys 2. Renal vein
3. Liver 4. Urinary bladder
Subtopic:  Nitrogenous Excretory Products |
 80%
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