Homeostatis Flashcards

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1
Q

why cant plasma protiens move across capillary walls

A

too large

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2
Q

what 2 compartments make up the ECF

A

interstitial fluid

plasma

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3
Q

which sex has, on average a higher proportion of body H2O

A

males

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4
Q

what is “feed forward control”

A

receptors permit the system to anticipate change and therefore activate response earlier

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5
Q

would you find more chlorine inside or outside the cell

A

outside

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6
Q

would you find more sodium inside or outside the cell

A

outside

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7
Q

would you find more potassium inside or outside the cell

A

inside

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8
Q

would you find more HCO3 inside or outside the cell

A

outside

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9
Q

to pass through the lipid bilayer molecules need to meet what 3 requirements

A

small
lipophillic (hydrophobic)
not charged

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10
Q

O2 can pass easily through the lipid bilayer true or false

A

true

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11
Q

N2 can pass easily through the lipid bilayer true or false

A

true

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12
Q

how do ions such as Na and K pass through the lipid bilayer

A

protein channels

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13
Q

what charge does the inside of a cell usually have

A

negative

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14
Q

how does glucose pass the cell membrane

A

carrier-mediated transport protien

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15
Q

Osmolarity describes the number of what in a solution

A

particles

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16
Q

in a solution what determines the tonicity

A

the number of non-penetrating solute particles

17
Q

an isotonic solution has the same number of non penetrating solute particles as what

A

ECF

18
Q

how would a solution with fewer non-penetrating solute particles be described

A

hypotonic

19
Q

how would a solution with a greater number of non penetrating particles be described

A

hypertonic

20
Q

what happens to cells in hypotonic solutions

A

swell

21
Q

what happens to cells in hypertonic solutions

A

shrink

22
Q

what does in vivo mean

A

in a living organism