energy coupling
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the use of an exergonic process to drive an endergonic one
Energy coupling in cells is mediated by ATP
,Osmosis
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the diffusion of water across a selectively permeable membrane. Water
diffuses across a membrane from the region of lower solute concentration
to the region of higher solute concentration
Mitochondria
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Bounded by double membrane; inner membrane has infoldings (cristae).
Functions primarily for cellular respiration.
LEOGER
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Lose Electrons: Oxidation, Gain Electrons: Reduction
When electrons are accepted energy is gained.
When electrons are lost energy is lost.
"Remember that Electrons represent Energy"
Isotonic
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Solute concentration is the same; no net water movement
Active transport
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moves substances against their concentration gradient. Active transport is
performed by specific proteins embedded in the membranes
6 functions of membrane proteins.
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1. Transport
2. Enzymatic Activity
3. Signal transduction
4. Cell-cell recognition
5. Intercellular joining
6. Attachement to cytoskeleton.
First Law of Thermodynamics
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the use of an exergonic process to drive an endergonic one
Energy coupling in cells is mediated by ATP
,Osmosis
Give this one a try later!
the diffusion of water across a selectively permeable membrane. Water
diffuses across a membrane from the region of lower solute concentration
to the region of higher solute concentration
Mitochondria
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Bounded by double membrane; inner membrane has infoldings (cristae).
Functions primarily for cellular respiration.
LEOGER
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Lose Electrons: Oxidation, Gain Electrons: Reduction
When electrons are accepted energy is gained.
When electrons are lost energy is lost.
"Remember that Electrons represent Energy"
Isotonic
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Solute concentration is the same; no net water movement
Active transport
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moves substances against their concentration gradient. Active transport is
performed by specific proteins embedded in the membranes
6 functions of membrane proteins.
Give this one a try later!
1. Transport
2. Enzymatic Activity
3. Signal transduction
4. Cell-cell recognition
5. Intercellular joining
6. Attachement to cytoskeleton.
First Law of Thermodynamics
Give this one a try later!