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Physio Midterm > Chp 5 Physio > Flashcards

Chp 5 Physio Flashcards

(74 cards)

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1
Q

What are the 2 Body fluid compartments

A

1.ICF = 2/3 of total body water
2. Ecf = 1/3 total body of water

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2
Q

ECF Consists of

A
  1. Interstitial fluid (IF) 75%
  2. Blood plasma 25%
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3
Q

Homeostasis ____________ Mean Equilibrium

A

DOES NOT

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4
Q

What is Osmotic Equilibrium

A

Concentration of H20
ICF & ECF is EQUAL

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5
Q

What is Chemical Disequilibrium

A

Components ( molecular components)

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6
Q

What is Electrical Disequilibrium

A

Charge
ICF IS MORE ( - )
ECF is more ( + )

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7
Q

What is the Concentration of Blood

A

300 mosm

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8
Q

K+

A

Potasssium

  • abundant in ICF (IONS)
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9
Q

Na+

A

Sodium
Abundant in ECF (IONS)

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10
Q

2 kinds of Transport Membranes

A

Active & Passive

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11
Q

Active Transport needs

A

ATP

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12
Q

3 TYPES OF ACTIVE TRANSPORT

A
  1. DIRECT/PRIMARY
  2. INDIRECT/SECONDARY
  3. VESICULAR Transport
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13
Q

Vesicular Transport consists of

A

1.) Exocytosis (ECF)

  1. ) Endocytosis ( ICF)

3.) Phagocytosis

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14
Q

Goal of passive transport is _________________

A

To reach equilibrium

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15
Q

Passive transport DOES or DOES NOT require ATP

A

Does not require ATP

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16
Q

Passive transport is driven by

A

Concentration Gradient

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17
Q

3 types of passive transport

A
  1. Facilitated diffusion
  2. Osmosis
  3. Simple diffusion
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18
Q

Osmosis is

A

Movement of H2O across a membrane

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19
Q

Do males or females have more percentage of h20

A

Males

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20
Q

Osmotic Pressure is

A

Force generated by movement of h20

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21
Q

In Osmosis what direction does the concentration gradient move with solutes?

A

Low concentration solutes to high concentration solutes

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22
Q

Osmosis for h20

A

High concentration of h20 to low concentration of h20

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23
Q

Tonicity is

A

Describes the volume change of a cell depending on concentration

  • non penetrating solutes
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24
Q

Tonicity

3 kinds of solutions

A
  1. ISOTONIC
  2. HYPERTONIC
  3. HYPOTONIC
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25
Isotonic means
NO CHANGE
26
HYPERTONIC CAUSES CELLS T0 ____________
SHRINK
27
HYPOTONIC CAUSES CELLS TO ___________
SWELL
28
TONICITY only depends on the concentration of
Non-penetrating solutes
29
7 points to describe Simple Diffusion
1. Movement of solutes is from High concentration to low concentration of solutes 2. Movement continues until concentration is EQUAL 3. Rapid over short distances 4. Directly related to temperature 5. Inversely related to molecular size and weight (Smaller = faster diffusion) 6. Can happen in an open system or across a partition 7. LIPID SOLUABLE, GASES
30
What is Fick’s Law ? 3 points
Rate of Diffusion directly proportional - Surface area -membrane permeability -concentration gradient is larger
31
7 General properties of diffusion
1. Diffusion of kinetic energy 2. Molecules diffuse from one area of high concentration of solutes to low concentration of solutes 3. Continues until concentrations come to equilibrium 4. Shorter distances 5. Higher temps 6. Smaller molecules 7. Open system
32
What is Facilitated diffusion “Protein mediated transport” Require atp? What direction of solutes ? And …..
No atp High concentration of solutes to low concentration of solutes Specifity Competition Saturation
33
The main membrane protein we need to know
Transport protein
34
Transport Proteins have two proteins, they are called?
Channel Proteins Carrier Proteins
35
Channel Proteins
Open water filled passageways A. Open channels ( leak ) B. Gated Channels - can be open or closed
36
Open channels are (leak)
Always open
37
Carrier Proteins
Changes confirmation ( shape ) A. Uniport B. Symport C. Antiport
38
What is Antiport?
Moves substrate in opposite direction
39
What is Symport ?
2 or more substrate moves same direction
40
What is Uniport ?
1 kind of substrate, same direction
41
What does Active Transport do ?
Moves substances AGAINST their concentration gradients
42
2/3 total body of water
ICF
43
Primary ( DIRECT) active transport uses what ? Does it require atp?
Uses sodium potassium pump Uses ATP directly
44
Na+- K+-Atpase
Sodium potassium pump
45
Abundant in your ICF
K+
46
Active transport you need
ATP
47
What does your Secondary ( indirect ) transport do?
Uses potential energy to move against gradient does not use atp directly
48
Potential energy is
Stored energy
49
Movement of water across a membrane
Osmosis
50
Vesicular Transport
Endocytosis Exocytosis Phagocytosis
51
Phagocytosis
Combine with lysosomes “cell eating” “cell death”
52
Describe volume change of a cell
Tonicity
53
Concentration of solutes in osmosis move in what direction
Is low to high
54
Phagocytosis functions
Immunity Recycling Found in white blood cells
55
Exocytosis requires ? And where does it move molecules?
Requires ATP & Calcium Moves molecules outside the cell Mostly used for protein release
56
Exocytosis is where?
Outside of the cell
57
Where is Endocytosis
In cell
58
Endocytosis moves molecules where? What does it require? Is it selective?
Moves molecules into the cell Requires energy from atp Non selective, allowing ecf to enter cell
59
Which transport moves substances against their concentration gradients
Active transport
60
Concentration gradient moves your solutes in what direction
Movement from high concentration of solutes to low concentration of solutes
61
Membrane permeability is directly related
To lipid solubility
62
Membrane permeability is inversely related to
Molecular size
63
The Goal to reach equilibrium is
Passive transport
64
Abundant in ECF
NA+ (sodium)
65
Cause cell too swell
Hypotonic
66
What is it called? Depending on the concentration of non penetrating solutes describes the volume change
Tonicity
67
2 or more substrates moves in same direction
Symport
68
1 kind of substrate, same direction
Uniport
69
Name the Gated channels
Voltage Chemical Mechanical
70
Moves substrate in opposite direction
Antiport
71
Always open ( leak ) is also called
Open channels
72
Voltage, chemical & mechanical are what channels
Gated channels
73
Specificity , competition and saturation are included in what diffusion
Facilitated diffusion
74
Components, molecular components
Chemical disequilibrium

Physio Midterm (6 decks)

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