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Flashcards in Bio unit 2 Deck (29):
1

functions of integral protein

-transport
-ID tag
-attached point for cytoskeleton
-enzyme sequence
-cell to cell junction
-signal transduction`

2

attachment point for cytoskeleton-integral protein

microtubules-protein connected to proteins that are not integral (peripheral protein) that are pressed up against membrane.
microtubules connected to centrosome

3

enzymatic sequence-integral protein

metabolic pathway: enzyme connected together, makes a product at the end.

4

cell to cell junction/connection-integral protein

1. nectin-tight function, ax and hook
2. desmosome- microtubules inside membrane connects to nectin (stronger junction for pulling)
-gap junction-channel protein

5

signal transduction-integral protein

have site on ECM that catches extracellular protein-hormones

6

after getting hormone

part of integral protein inside cell becomes enzyme makes a product that go into nucleus to trigger transcription/production of stuff (make spec protein)

7

low water potential

low chance of water moving out quickly

8

high water potential

low solute

9

to calculate water potential

Y=Ys+Yp

Ys: solute potential to get in the way (-)

Yp: pressure

10

more pressure

increase in water movement/potential (+)

11

water movement

high to low

12

Y=-iCRT

i: sugar-1, salt-2
C: cocen of solute
R: presure on cell by water= .0831
T: kelvin (ºC+273)

13

phospholipid

hydrophilic=phosphate
hydrophobic=fatty acid, non polar, not aqueous.
amphipathic: both

14

membrane

phospholipids don't interact with each other and can b manipulated.
cold envir: loses fluid- unsaturated
-protein don't stay in place

15

goals of membrane

-resist solidifying as temp decrease
-resist falling apart as temp increase

16

cholesterol

allow fluidity w/o too much fluidity

17

no charge items

no channel protein

18

charged item

use channel protein

19

sugar

fa diff

20

amino acid

fa dif

21

nucleotides

fa diff

22

steroids

fa diff

23

O2

diff

24

NH3

fa diff

25

CO2

diff

26

hormones

exocytosis

27

channel protein

has specificity

28

neuron

sodium outside. pumps-active transport pulls it outside

29

ID tag

glycoprotein-polysaccharid- blood type; every has different sugar sequence