BI 212 Midterm Questions With Complete Solutions
The difference in osmotic potential between the leaf air spaces
and local atmosphere
depolarization
in stomata
Ca++
in stomata
,depolarization
in stomata
1 to 100;
The size range of an individual cell is from _______ to _______
micrometers.
rate of diffusion; nutrients (how long it takes for nutrients to get
to middle of cell)
Cells cannot get much larger than 100 micrometers because they
are limited by the ________________ of ___________.
high; nutrients
Cells are small and have a ________ SA/V ratio to increase
access to ___________.
,surface area and rate of diffusion
Cells try to find the sweet spot between maximizing
volume; surface area
Animals make heat in proportion to their ___________ and lose
heat in proportion to their ______________
ectotherms
_________ are temperature conformers; animals that have an
internal body temperature equal to their environment (usually
very small animals. cant keep up with heat loss due to their high
SA/V ratio, so they conform)
endotherms
_________ are temperature regulators; animals that make their
own heat to maintain a constant body temperature
behavior
Ectotherms use __________ rather than metabolic processes to
control body temp.
ectotherms
__________ use temperature to regulate metabolism
metabolic processes and behavior
What do endotherms use to maintain a constant body temp?
endotherm; ectotherm
The resting metabolic rate of an ___________ is about 10x that
of an __________
, 10
The resting metabolic rate of an endotherm is about _______
times that of an ectotherm
require energy from the cell
Facilitated diffusion does NOT
NET force of the charge and concentration gradient
The __________________________________ determines
which direction an ion will flow
Active transport proteins; ATP; active transport pump
_____________________ are used to maintain membrane
potential. They use _____ to move molecules AGAINST their
concentration gradient. Animals and Plants have an
_____________________ that maintains their membrane
potential.
ATP; shivering
When an animal is trying to warm up it burns _________ by
__________ to produce heat
burning ATP
When an animal is shivering to warm up, it is
metabolic thermogenesis
__________________ does not consume ATP
ATP
metabolic thermogenesis does not consume __________
The difference in osmotic potential between the leaf air spaces
and local atmosphere
depolarization
in stomata
Ca++
in stomata
,depolarization
in stomata
1 to 100;
The size range of an individual cell is from _______ to _______
micrometers.
rate of diffusion; nutrients (how long it takes for nutrients to get
to middle of cell)
Cells cannot get much larger than 100 micrometers because they
are limited by the ________________ of ___________.
high; nutrients
Cells are small and have a ________ SA/V ratio to increase
access to ___________.
,surface area and rate of diffusion
Cells try to find the sweet spot between maximizing
volume; surface area
Animals make heat in proportion to their ___________ and lose
heat in proportion to their ______________
ectotherms
_________ are temperature conformers; animals that have an
internal body temperature equal to their environment (usually
very small animals. cant keep up with heat loss due to their high
SA/V ratio, so they conform)
endotherms
_________ are temperature regulators; animals that make their
own heat to maintain a constant body temperature
behavior
Ectotherms use __________ rather than metabolic processes to
control body temp.
ectotherms
__________ use temperature to regulate metabolism
metabolic processes and behavior
What do endotherms use to maintain a constant body temp?
endotherm; ectotherm
The resting metabolic rate of an ___________ is about 10x that
of an __________
, 10
The resting metabolic rate of an endotherm is about _______
times that of an ectotherm
require energy from the cell
Facilitated diffusion does NOT
NET force of the charge and concentration gradient
The __________________________________ determines
which direction an ion will flow
Active transport proteins; ATP; active transport pump
_____________________ are used to maintain membrane
potential. They use _____ to move molecules AGAINST their
concentration gradient. Animals and Plants have an
_____________________ that maintains their membrane
potential.
ATP; shivering
When an animal is trying to warm up it burns _________ by
__________ to produce heat
burning ATP
When an animal is shivering to warm up, it is
metabolic thermogenesis
__________________ does not consume ATP
ATP
metabolic thermogenesis does not consume __________
