Biol 316 Exam 1 Questions With
Accurate Answers
Delivery of blood to active muscle for the purpose of O2 delivery would be
intrinsic control - ANSWER True
Regulation of total body (systemic) O2 levels would be intrinsic control -
ANSWER true
Regulation of lung ventilation to maintain total body O2 levels would be extrinsic
control - ANSWER false
Regulation of O2 around a specific set point would be called homeostatic
regulation - ANSWER true
The release of O2 by hemoglobin of red blood cells at the metabolically active
tissue would be considered extrinsic control - ANSWER True
Homeostatic temperature regulation occurs at all temperatures - ANSWER true
Regulation of body temperature requires "response loops" to increase heat
generation through metabolism when body temperature becomes too low -
ANSWER false
Regulation of body temperature requires "negative feedback loops" that are
activated to increase heat generation through metabolism when body
temperature becomes too low. - ANSWER true
Regulation of temperature is ultimately controlled by an integrator - ANSWER
True
Temperature that is homeostatically regulated via negative feedback never
deviates from the exact set point - ANSWER true
Control mice would display positive feedback loop during parturition - ANSWER
true
Positive feedback uses a signal integration pathway to return the measured
parameter back to the homeostatic set point - ANSWER true
This study investigated the reproductive body system. - ANSWER false
, An outside factor is required to shut off a positive feedback loop. - ANSWER
False
Positive feedback loops are considered homeostatic. - ANSWER false
Teleost that evolved Antarctica have a greater proportion of unsaturated fatty
acids linked to phosphatidylcholine compared to teleost from the tropics. -
ANSWER true
Regardless of the level of saturation all species have the same level of
membrane fluidity - ANSWER false
Membrane bound proteins function is unaffected by membrane fluidity. -
ANSWER false
Cold water adapted species have higher concentrations of cholesterol in the
lipid membrane - ANSWER true
Teleosts change the composition of saturated vs unsaturated fatty acids
because it changes the temperature at which the membrane will solidify -
ANSWER true
Allows ions to move across the membrane down a gradient - ANSWER cell
membrane
Uses energy to move an ion across the membrane - ANSWER transmembrane
protein
Can catalyze reactions - ANSWER enzyme protein
Can bind to a ligand - ANSWER multisubunit transmembrane
Provides support for the cell - ANSWER cytoplasm
Brattleboro rats urinated excessively because water could not move via the
transcellular route - ANSWER false
The epithelial cells in the kidney have tight junctions to prevent paracellular
water reabsorption - ANSWER false
mRNA for the antidiuretic hormone is translated to protein by the Golgi
apparatus - ANSWER true
The basolateral surface of epithelial cells, of the kidney, sit on top of a basement
membrane. - ANSWER true
Accurate Answers
Delivery of blood to active muscle for the purpose of O2 delivery would be
intrinsic control - ANSWER True
Regulation of total body (systemic) O2 levels would be intrinsic control -
ANSWER true
Regulation of lung ventilation to maintain total body O2 levels would be extrinsic
control - ANSWER false
Regulation of O2 around a specific set point would be called homeostatic
regulation - ANSWER true
The release of O2 by hemoglobin of red blood cells at the metabolically active
tissue would be considered extrinsic control - ANSWER True
Homeostatic temperature regulation occurs at all temperatures - ANSWER true
Regulation of body temperature requires "response loops" to increase heat
generation through metabolism when body temperature becomes too low -
ANSWER false
Regulation of body temperature requires "negative feedback loops" that are
activated to increase heat generation through metabolism when body
temperature becomes too low. - ANSWER true
Regulation of temperature is ultimately controlled by an integrator - ANSWER
True
Temperature that is homeostatically regulated via negative feedback never
deviates from the exact set point - ANSWER true
Control mice would display positive feedback loop during parturition - ANSWER
true
Positive feedback uses a signal integration pathway to return the measured
parameter back to the homeostatic set point - ANSWER true
This study investigated the reproductive body system. - ANSWER false
, An outside factor is required to shut off a positive feedback loop. - ANSWER
False
Positive feedback loops are considered homeostatic. - ANSWER false
Teleost that evolved Antarctica have a greater proportion of unsaturated fatty
acids linked to phosphatidylcholine compared to teleost from the tropics. -
ANSWER true
Regardless of the level of saturation all species have the same level of
membrane fluidity - ANSWER false
Membrane bound proteins function is unaffected by membrane fluidity. -
ANSWER false
Cold water adapted species have higher concentrations of cholesterol in the
lipid membrane - ANSWER true
Teleosts change the composition of saturated vs unsaturated fatty acids
because it changes the temperature at which the membrane will solidify -
ANSWER true
Allows ions to move across the membrane down a gradient - ANSWER cell
membrane
Uses energy to move an ion across the membrane - ANSWER transmembrane
protein
Can catalyze reactions - ANSWER enzyme protein
Can bind to a ligand - ANSWER multisubunit transmembrane
Provides support for the cell - ANSWER cytoplasm
Brattleboro rats urinated excessively because water could not move via the
transcellular route - ANSWER false
The epithelial cells in the kidney have tight junctions to prevent paracellular
water reabsorption - ANSWER false
mRNA for the antidiuretic hormone is translated to protein by the Golgi
apparatus - ANSWER true
The basolateral surface of epithelial cells, of the kidney, sit on top of a basement
membrane. - ANSWER true
