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Physiology > Cell Physiology > Flashcards

Cell Physiology Flashcards

1
Q

Organelle for synthesis of proteins bound for cell membrane, lysosomes and outside of cell

A

rough endoplasmic reticulum

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2
Q

Organelle for synthesis of proteins bound for cytoplasm and mitochondria

A

free-floating ribosomes

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3
Q

Are proteosomes membrane-bound or not?

A

not membrane bound

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4
Q

Synthesizes hyaluronic acid and chondroitin sulfate

A

Golgi apparatus

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5
Q

only substance modified in rough endoplasmic reticulum and not Golgi apparatus

A

collagen

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6
Q

Added to lysosome-bound proteins by Golgi apparatus

A

mannose-6-phosphate

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7
Q

Microtublues: anterograde transport

A

kinesin

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8
Q

Microtublues: retrograde transport

A

dynein

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9
Q

exclusive biochemical pathways in mitochondria:

A

beta-oxidation, TCA cycle

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10
Q

back and forth waving

A

cilia

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11
Q

propeller or quasi-sinusoidal motion

A

flagella

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12
Q 
Junctional complexes:
Divides cell into apical side and basolateral side
A. macula adherens (desmosomes)
B. zonula adherens (fascia adherens)
C. zonula occludens (tight junctions)
D. gap junctions
A

Zonula ocludens (tight junctions)

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13
Q 
Junctional complexes:
For intercellular communication
A. macula adherens (desmosomes)
B. zonula adherens (fascia adherens)
C. zonula occludens (tight junctions)
D. gap junctions
A

Gap junctions

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14
Q 
Junctional complexes:
For firm intercellular adhesions
A. macula adherens (desmosomes)
B. zonula adherens (fascia adherens)
C. zonula occludens (tight junctions)
D. gap junctions
A

Macula adheres (desmosomes)

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15
Q 
Junctional complexes:
Increases surface area for contact
A. macula adherens (desmosomes)
B. zonula adherens (fascia adherens)
C. zonula occludens (tight junctions)
D. gap junctions
A

Zonula adherens (fascia adherens)

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16
Q

Functional unit of the gap junction

A

Connexon

17
Q

Most abundant component of the cell membrane

A

Proteins

18
Q

Glycolipid that anchors proteins to outer leaflet

A

Glyocyslphosphatidylinositol (GPI)

19
Q

Electrostatic interactions: integral or peripheral proteins?

A

Peripheral proteins

20
Q

Hydrophobic interactions: integral or peripheral proteins

A

Integral proteins

21
Q

Important protein in phagocytosis

A

Clathrin

22
Q

Important protein in exocytosis

A

SNARE proteins

23
Q

Body fluid compartment: inulin
A. total body water
B. extracellular fluid
C. plasma

A

extracellular fluid

24
Q

Body fluid compartment: deuterium oxide
A. total body water
B. extracellular fluid
C. plasma

A

total body water

25
Q

Body fluid compartment: 124-I-labeled albumin
A. total body water
B. extracellular fluid
C. plasma

A

plasma

26
Q

Body fluid compartment: antipyrine
A. total body water
B. extracellular fluid
C. plasma

A

total body water

27
Q

Body fluid compartment: mannitol
A. total body water
B. extracellular fluid
C. plasma

A

extracellular fluid

28
Q

An effective osmole is a PERMEANT/IMPERMEANT solute?

A

impermeant solute

29
Q

Ca-ATPase pump in sarcoplasmic reticulum and endoplasmic reticulum

A

SERCA

30
Q

CA-ATPase pump in cell membrane

A

PMCA

31
Q

In all epithelial cells, Na-K-ATPase pump is found in the basolateral side except

A

choroid plexus

32
Q

Reflection coefficient = 0

A

Permeable

Inefficient

33
Q

Reflection coefficient = 1

A

Impermeable

Efficient

34
Q

Will changing the concentration difference change the permeability?

A

No. Only flux. Flux = permeability x concentration difference

Physiology (12 decks)

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