Podcast
Questions and Answers
If a person doesn't drink any water or other fluids for one day, the urine produced is likely to be what, relative to the person's blood?
If a person doesn't drink any water or other fluids for one day, the urine produced is likely to be what, relative to the person's blood?
- High in calcium
- Hyperosmotic (correct)
- Hyposmotic
- Isomotic
What will happen to a marine fish when placed in freshwater?
What will happen to a marine fish when placed in freshwater?
- Maintain osmotic balance
- Lose water
- Experience no change
- Gain water (correct)
What nitrogenous waste product do fish primarily use, and what do mammals primarily use?
What nitrogenous waste product do fish primarily use, and what do mammals primarily use?
- Ammonia; urea (correct)
- Ammonia; uric acid
- Urea; ammonia
- Uric acid; ammonia
- Uric acid; urea
Which process occurs in the glomerulus and Bowman's capsule?
Which process occurs in the glomerulus and Bowman's capsule?
Urine is primarily produced from what source within the kidneys?
Urine is primarily produced from what source within the kidneys?
Urine is transported from the bladder to the environment via which structure?
Urine is transported from the bladder to the environment via which structure?
Place the following structures in the correct order for kidney function in a mammal: 1- Loop of Henle, 2- Collecting duct, 3- Distal tubule, 4- Glomerulus, 5- Proximal tubule
Place the following structures in the correct order for kidney function in a mammal: 1- Loop of Henle, 2- Collecting duct, 3- Distal tubule, 4- Glomerulus, 5- Proximal tubule
Which is a key function of the large intestine in mammals?
Which is a key function of the large intestine in mammals?
In an adult human, blood is lower in oxygen concentration in which heart chamber compared to the pulmonary veins?
In an adult human, blood is lower in oxygen concentration in which heart chamber compared to the pulmonary veins?
Which event in the cardiac cycle causes blood pressure to rise to 120 mm Hg (as measured in the upper arm)?
Which event in the cardiac cycle causes blood pressure to rise to 120 mm Hg (as measured in the upper arm)?
As blood leaves your right atrium, which heart chamber does it enter next?
As blood leaves your right atrium, which heart chamber does it enter next?
Ventilation of the respiratory surface improves diffusion by affecting which factor in Fick's Law?
Ventilation of the respiratory surface improves diffusion by affecting which factor in Fick's Law?
The surface area for gas exchange in a fish's gills is found in the epithelium of which structure?
The surface area for gas exchange in a fish's gills is found in the epithelium of which structure?
Some poison dart frogs in Columbia produce a toxin called batrachotoxin. When this toxin is applied to the membrane of a live neuron, the membrane potential moves rapidly to 0, and stimuli to the neuron do not result in any change in the membrane potential (it stays at 0). Which likely explains the mechanism of the toxin?
Some poison dart frogs in Columbia produce a toxin called batrachotoxin. When this toxin is applied to the membrane of a live neuron, the membrane potential moves rapidly to 0, and stimuli to the neuron do not result in any change in the membrane potential (it stays at 0). Which likely explains the mechanism of the toxin?
Propagation of action potentials in neurons is primarily due to what?
Propagation of action potentials in neurons is primarily due to what?
If a marine fish does not osmoregulate, it will thrive in freshwater.
If a marine fish does not osmoregulate, it will thrive in freshwater.
In what form do mammals excrete their primary nitrogenous waste?
In what form do mammals excrete their primary nitrogenous waste?
The process of urine formation begins with ______ in the glomerulus.
The process of urine formation begins with ______ in the glomerulus.
Match each kidney structure with its primary function:
Match each kidney structure with its primary function:
The surface area for gas exchange in human lungs is found in the bronchi.
The surface area for gas exchange in human lungs is found in the bronchi.
Flashcards
Marine fish in freshwater
Marine fish in freshwater
When a marine fish is placed in freshwater, it will gain water due to osmosis.
Nitrogenous waste in fish and mammals
Nitrogenous waste in fish and mammals
Fish primarily use ammonia as their nitrogenous waste, while mammals use urea.
Filtration in the nephron
Filtration in the nephron
Filtration occurs in the glomerulus and Bowman's capsule of the nephron.
Urine production
Urine production
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Urine transport
Urine transport
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Kidney function order
Kidney function order
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Large intestine function
Large intestine function
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Blood oxygen concentration
Blood oxygen concentration
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Blood pressure peak
Blood pressure peak
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Gas exchange in fish gills
Gas exchange in fish gills
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Batrachotoxin mechanism
Batrachotoxin mechanism
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Action potential propagation
Action potential propagation
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Study Notes
- If a person does not drink enough fluids, the urine produced is likely to be hyposmotic relative to their blood.
- Marine fish in freshwater will gain water due to osmosis
- Fish use ammonia and uric acid as their primary nitrogenous waste, whereas mammals use urea
- Filtration occurs in the glomerulus and Bowman's capsule in the kidneys
- Urine is produced from liquid wastes in the kidneys
- Urine is transported from the bladder to the environment via the urethra
- The correct order for kidney function in a mammal is: glomerulus, proximal tubule, loop of Henle, distal tubule, collecting duct.
- Filtering of wastes is a key function of the large intestine in mammals
- In an adult human, blood has a lower oxygen concentration in the right ventricle compared to the pulmonary veins.
- Contraction of the left ventricle causes blood pressure to rise to 120 mm Hg
- Blood leaves the right atrium and enters the right ventricle
- Ventilation of the respiratory surface improves diffusion by affecting the partial pressure difference in Fick's Law
- The surface area for gas exchange in a fish's gills is found in the epithelium of the bronchi
- Batrachotoxin blocks sodium channels in neurons, preventing changes in membrane potential
- Propagation of action potentials in neurons is primarily due to voltage-gated sodium channels
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