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Zak, Physiology > Molecular Transport > Flashcards

Molecular Transport Flashcards

0
Q

Thermal Energy

A

Energy of heat

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1
Q

Kinetic Energy

A

Energy of motion

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2
Q

Diffusion

A

Movement of particles from [high] to [low]

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3
Q

Osmosis

A

Movement of solvent from [high] to [low] through a semipermeable membrane

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4
Q

Non-gated Channels

A

Aquaporins (mainly in Prokaryotes)

Ion Channels

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5
Q

Gated Channels

A

Ligand gated

Voltage gated

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6
Q

Main use for fascilitated diffusion under physiological conditions…

A

Glucose and Amino Acid transport

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7
Q

Active Transport

A

Movement of particles against a concentration gradient

Primary active transport & Secondary active transport

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8
Q

Primary Active Transport

A

Energy is derived directly from ATP

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9
Q

Secondary Active Transport

A

Energy derived from moving particles down concentration gradient, then used to move particles against concentration gradient

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10
Q

Main ion involved in secondary active transport…

A

Na+

EX: Na+-Glucose co-transport, Na+-H+ & Na+-Ca++ counter-transport

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Zak, Physiology (20 decks)

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