Chapter 5 Flashcards

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1
Q

Direct beam electrons across surface of specimen coated with metal

A

scanning electron microscope

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2
Q

Dense mesh of fibrous proteins that supports inner surface of membrane

A

nuclear lamina

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3
Q

organelle develops from centriole

A

basal body

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4
Q

Mesh of cytoskeletal elemtsn under a plasma membrane

A

cell cortex

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5
Q

short, movable structure that projects from plasma membrane of some eukaryotic cells

A

Cilia

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6
Q

are cilia in pros

A

no

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7
Q

Peroxisomes

A

enzymes, breaks down aa, fa, and toxic substances

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8
Q

What does fluids mosaic model

A

cell membrane

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9
Q

FM in what dimension

A

two

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10
Q

Material that stregthens cell walls of vascular plants

A

lignin

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11
Q

Intermediate filament

A

supports CM and tissues

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12
Q

Microfilament

A

fiber of actin subunits
reinforces cell membrane
Muscle contractions

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13
Q

Complex mixture of cell secretions

A

ECM

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14
Q

Structure connects cell to another cell or to ECM

A

cell junction

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15
Q

In the slim

A

Biofilm

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16
Q

Motor protein that interacts with microtubules to cause flagella and cilia in elks to move

A

dynein

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17
Q

fibrous protein makes up type of intermediate filaments which form nuclear lamina

A

lamin

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18
Q

Cell junction composed of adhesion proteins that connect to cytoskeletal elements. Fastens cell to each other/to basement membrane

A

Adhering junction

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19
Q

Network of interconnected protein filaments that supports, organize, and move eukaryote cells and their parts

A

Cytoskleeton

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20
Q

Do pros have cytoskeleton

A

no

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21
Q

Protein filament that projects from surface of some pros

A

pilis

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22
Q

Motor protein that interacts with microfilaments to cause muscle cell contraction

A

myosin

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23
Q

Basement membrane

A

ECM secreted by animal cells, not cell membrane, sheet of fibrous materials that organizes tissues

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24
Q

Who was basement membrane?

A

animal cells

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25
Q

Arrays of adhesion proteins join epithelial cells and collectively stop leakage

A

tight junctions

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26
Q

Semifuluid interior of chloroplasts that contains enzymes and chloroplast’s own DNA

A

stroma

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27
Q

Does cell wall have pores?

A

Yes

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28
Q

What is cell wall in?

A

fungi, some protists, plant cells

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29
Q

what has two lipid bilayers?

A

envelope

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30
Q

Must be pores in membrane for…

A

nuclei

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31
Q

is cell wall permeable

A

yes

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32
Q

fluid-filled organelle; isolates/disposes of waste, debris, toxic materials

A

vacuole

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33
Q

Golgi, er , etc.

A

endomembrane system

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34
Q

EM system place

A

between nucleus and plasma membrane

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35
Q

sER makes

A

lipids/breaks down carbs and fa

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36
Q

rER

A

synthesize proteins

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37
Q

What grows from centriole

A

microtubules

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38
Q

Whatintermediate filaments in hair

A

keratin

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39
Q

Globular protein; makes up microfilaments

A

actin

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40
Q

Microtuble

A

involved in movement

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41
Q

is microtubule hollow

A

yes

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42
Q

one-thousandth of a millimeter

A

micrometer

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43
Q

All cells have

A

cell membrane, cytoplasm, control center, organelles

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44
Q

do pros have phos bilayer besides cell membrane?

A

No

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45
Q

Size pros

A

1 to 2 mm

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46
Q

eukaryote size

A

10 to 20 mm

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47
Q

compound light microscope pro/con

A

Pro: see living things
Con: limited power

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48
Q

Polarized

A

3D edge effect

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49
Q

Transmission power

A

200,000

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50
Q

slice?

A

Transmission

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51
Q

All must be dead in

A

Transmission

52
Q

Transmission shows

A

interior

53
Q

2D

A

Trans

54
Q

Surface coated with metal

A

scanning

55
Q

scanning power

A

100,000

56
Q

plasticine:

A

Trans

57
Q

2 membrane proteins

A

peripheral

integral

58
Q

Embedded in whole layer

A

integral

59
Q

only located in the inner or outer surface of the phospholipid bilayer like floating iceberg

A

peripheral

60
Q

what is in phospholipid head?

A

Phosphate group and glycerol

61
Q

Partially embedded is

A

Peripheral

62
Q

Cholesterol stabilized

A

cell membrane

63
Q

too much cholesterol is

A

plaque

64
Q

Glycoprotein

A

carbohydrate groups attached to the polypeptide chain

65
Q

what makes glycoprotein

A

oligo and protein

66
Q

Connect cells together

A

Junction proteins

67
Q

help cells stick together

A

Adhesion proteins

68
Q

translation aka

A

protein synthesis

69
Q

Pilus specialized for recombination

A

sex pilus

70
Q

what is flagella made of

A

microtubules

71
Q

movable strucutre projects from PM of some euks

A

cilim

72
Q

Organelles without membrane

A

ribosomes centriole

73
Q

What type of cells have ribosomes

A

all

74
Q

what type ofcelss have centrioles

A

animal

75
Q

Involved in mitosis

A

centriole

76
Q

Human Resources

A

nucleolus

77
Q

Parts of EM

A

vesicles, eR, Golgi

78
Q

Produces phospholipids

A

rer

79
Q

releases calcium and detoxifies

A

ser

80
Q

Caclium helps

A

contract

81
Q

Autophagy

A

is the body’s way of cleaning out damaged cells

self eating

82
Q

endosome

A

vesicle being brought into cell

when fused with vesicle in cell

83
Q

Catalcase …

A

neutralizes

84
Q

h202 is

A

hydrogen peroxide

85
Q

autolysis is how cells to go

A

apoptosis

86
Q

Autolysis:

A

lysosomes release contents and degrades surrounding enviro

87
Q

What do peroxisomes produce

A

H202

88
Q

Lysosomes can engulf

A

damaged organelles

89
Q

Dextox

A

Peroxiding

90
Q

Contractile Vacuoles…

A

expel excess liquid

91
Q

Do mitochondria have dan

A

yes

92
Q

parts of mitochondria

A

outer membrane
Inner membrane
cristae
matrix

93
Q

cristae

A

folds

94
Q

matrix

A

space inside folds

95
Q

ATP from flow of

A

hydrogen ions

96
Q

___ allows for ATP

A

oxygen

97
Q

expl. for euks

A

endosymbiosis

98
Q

endosymbiosis

A

small eukaryote in large eukaryote becomes dependent

99
Q

Mito has own…

A

dna, ribosomes, outer membranes, divides

100
Q

What gives structure

A

nucelar lamina

101
Q

flattened sac in chloroplast

A

Thylakoid

102
Q

smallest are

A

microfilaments

103
Q

largest are

A

microtubules

104
Q

Myosin

A

contraction

105
Q

Denein

A

moves cilia and flagella

106
Q

what makes up cortex

A

filaments

107
Q

what makes centrioles and sprinkle fibers

A

microtubules

108
Q

do filaments have motion

A

yes

109
Q

Flagella is __ in eus, __ in pros

A

wave, propeller

110
Q

9:2 array found in

A

cilia or flagella

111
Q

9:2

A

9 pairs tubules plus one pair at core

112
Q

Spindle fibers

A

tubules

extend from one side to other of cell during division

113
Q

Motor protein that helps move flag/cilia

A

dynein

114
Q

Motor protein helps contractions

A

myosin

115
Q

int. form nuclear laimna

A

laimns

116
Q

int. filament in hair

A

keratin

117
Q

dynien
myosin
laim
keratin

A

motor
motor
int.
int.

118
Q

Basement membrane between

A

epithelial and connective tissue

119
Q

3 types junctions

A

Tight
Adhering
Gap

120
Q

Tight j

A

adhesion proteins join epithelial cells (stomach)

121
Q

Adhering junctions

A

connect to cytoskeletal elements (skin)

122
Q

Gap junctions in

A

heart

123
Q

Who has mitochondria?

A

Both plants and animals

124
Q

Centriole only in…

A

animal cells

125
Q

how make atp

A

cellular respiration