PNB 2250 - Exam 1 Questions with Complete Solutions 100% Verified| Latest
Update Graded A+
Air-gulping in fish most likely developed in ____. Why? Warm, shallow water
Energy required to swim to the surface is significant.
4-Cycle breathers Lung to mouth
Mouth to air
Air to mouth
Mouth to lung
2-Cycle breathers Outside to lungs
Lungs to outside
What is required for 2-Cycle breathing? Ability to close nose and block air to digestive
system
Driving force for development of fish lungs from swim bladders Seasonal/regional hypoxia
How is air-breathing in fish an evolutionary advantage? They are able to survive in damp
burrows for weeks after water has dried
Air-breathing fish have how many lungs? 2
Swim bladder air-filled bag designed to reduce body density and help maintain buoyancy
If the animal has the same density as water _____ It floats and has natural buoyancy
,If animal is heavier than water, ____ It will sink and must expend energy to float
Where is the swim bladder? Dorsal area of the fish body above the gut
Swim bladders only found in _____ Ray-finned fish
True/False: swim bladders are found in all types of fish False
How do sharks and rays stay buoyant? Constant swimming or use oils
The size of the _____ determines how high gas pressures in fish can go Rete mirabile
Salamanders respiration Gills
Oviparous Laying eggs outside the body
Viviparous Live birth
Egg shells must be permeable to ____ and sensitive to _____ O2, water, and CO2
Humidity
Egg shells are predominantly impermeable to ____. Gas
Reptile have ___ eggs Cleidoic
, Cleidoic eggs Three extra-embryonic membranes
Three membrane of Cleidoic eggs - Chorion
- Amnion
- Allantois
Access to O2 through respiration has a huge impact on _____ Metabolic rate
Gas transportation limited by: Diffusion
Why do large animals need help with gas transportation? Cells are further away so you have
a physical delivery problem
Animals need a ______ for the bulk flow of water, carrying along with is O2 and CO2
Circulatory system
O2 is more or less soluble in water than CO2? Much less
How is gas transported? As a gas, complexed to proteins, then converted to something else
All transport proteins must have a _____ O2 reactive center
In the transport protein, the reactive center must bind O2 ____ Weakly
Fe containing transport proteins Hemoglobin
Update Graded A+
Air-gulping in fish most likely developed in ____. Why? Warm, shallow water
Energy required to swim to the surface is significant.
4-Cycle breathers Lung to mouth
Mouth to air
Air to mouth
Mouth to lung
2-Cycle breathers Outside to lungs
Lungs to outside
What is required for 2-Cycle breathing? Ability to close nose and block air to digestive
system
Driving force for development of fish lungs from swim bladders Seasonal/regional hypoxia
How is air-breathing in fish an evolutionary advantage? They are able to survive in damp
burrows for weeks after water has dried
Air-breathing fish have how many lungs? 2
Swim bladder air-filled bag designed to reduce body density and help maintain buoyancy
If the animal has the same density as water _____ It floats and has natural buoyancy
,If animal is heavier than water, ____ It will sink and must expend energy to float
Where is the swim bladder? Dorsal area of the fish body above the gut
Swim bladders only found in _____ Ray-finned fish
True/False: swim bladders are found in all types of fish False
How do sharks and rays stay buoyant? Constant swimming or use oils
The size of the _____ determines how high gas pressures in fish can go Rete mirabile
Salamanders respiration Gills
Oviparous Laying eggs outside the body
Viviparous Live birth
Egg shells must be permeable to ____ and sensitive to _____ O2, water, and CO2
Humidity
Egg shells are predominantly impermeable to ____. Gas
Reptile have ___ eggs Cleidoic
, Cleidoic eggs Three extra-embryonic membranes
Three membrane of Cleidoic eggs - Chorion
- Amnion
- Allantois
Access to O2 through respiration has a huge impact on _____ Metabolic rate
Gas transportation limited by: Diffusion
Why do large animals need help with gas transportation? Cells are further away so you have
a physical delivery problem
Animals need a ______ for the bulk flow of water, carrying along with is O2 and CO2
Circulatory system
O2 is more or less soluble in water than CO2? Much less
How is gas transported? As a gas, complexed to proteins, then converted to something else
All transport proteins must have a _____ O2 reactive center
In the transport protein, the reactive center must bind O2 ____ Weakly
Fe containing transport proteins Hemoglobin
