domain eukarya Flashcards

(59 cards)

1
Q

what are the two main groups in domain eukarya

A

protists and fungi

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2
Q

which type of organisms contain ribosomes

A

both pro and eu

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3
Q

where in the cell are ribosomes found

A

free in the cytosol or bound to the ER (RER for eukaryotes or nuclear envelope)

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4
Q

what do ribosomes do

A

site of protein synthesis

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5
Q

what are the ribosome subunits

A

30 + 50 = 70 for pro
40 + 60 = 80 for eu

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6
Q

what organism types have golgi bodies

A

eukaryotes only

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7
Q

function of golgi apparatus

A

packing and transporting cell materials

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8
Q

what system is the golgi apart of

A

endomembrane system

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9
Q

what fun thing does the structure of the golgi have

A

a cis and trans face

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10
Q

what organism types have a cell wall

A

both eu and pro

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11
Q

where in the cell in the cell wall located

A

exterior to the PM

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12
Q

what is the cell wall made of

A

peptidoglycan = pro, chitin and cellulose = eu

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13
Q

function of cell wall

A

maintain cell shape

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14
Q

do archaea have a cell wall

A

no

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15
Q

what do archaea have instead of a cell wall

A

their outer layers have lots of variation, none of which are made of peptidoglycan

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16
Q

what is the cell wall made of in protists

A

silica or calcium carbonate

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17
Q

which cell types have a nucleolus

A

eukaryotes only

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18
Q

where in the cell is the nucleolus

A

within the nucleus

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19
Q

function of the nucleolus

A

produces ribosomal subunits and rRNa, and it’s the site of ribosomal subunit assembly

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20
Q

which organism types have lysosomes

A

eukaryotes only

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21
Q

function of lysosomes

A

helps in the elimination of dead and non functioning organelles, brings in food via phagocytic vacuole (ie used for breaking down food)

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22
Q

what makes lysosomes able to break things down

A

contains protons (acidic), and hydrolytic enzymes (ie hydrolases)

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23
Q

what is the lysosome surrounded by

A

a single membrane

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24
Q

what type of organisms have smooth ER

A

eukaryotes only

25
function of smooth ER
synthesis of lipids, detoxification, stores Ca, transports materials
26
T or F: smooth ER has ribosomes
false; has no ribosomes
27
what types of organisms have cytoskeleton
both pro and eu
28
function of cytoskeleton
maintains cell structure, gives cell its shape, keeps organelles bound in the cell
29
structure of cytoskeleton
eu: actin filaments, intermediate filaments, microtubules pro: has homologues of these structures
30
what types of organisms have nucleus
eukaryotes only
31
function of nucleus
stores genetic material, controls cell activities, site of replication and transcription, contains pores for nuclear export, contains nucleolus
32
what is the nuclear envelope
the inner and outer membrane of the nucleus
33
what types of organisms have a rough ER
eukaryotes only
34
function of rough ER
site of protein synthesis, transports material to the golgi
35
what is the rough ER
an internal membrane system that's part of the endomembrane system. It's continuous with the nuclear envelope and studded with ribosomes
36
what types of organisms have cilia
eukaryotic only
37
structure of cilia within the cell
protrude from the cell and is surrounded by the PM. Forms hairlike structures on the outside of the cell
38
function of cilia
helps in cell movement, traps bacteria/pathogens, aids in adhesion
39
what are cilia made of
microtubules
40
what types of organelles have mitochondria
eukaryotes only
41
function of mitochondria
produces ATP, Krebs cycle and ETC happens here
42
what special thing do mitochondria have
70S ribosomes and a circular form of DNA
43
what types of organisms have chloroplasts
eukaryotes only
44
function of chloroplasts
traps light in chlorophyll and converts light energy into chemical energy in photosynthesis. Thylakoid lumen and membrane are involved in the light reaction
45
structure of chloroplasts
inner and outer membrane, thylakoid stacks (grana) and stroma, and 70S ribosomes
46
what types of organisms have nucleoid
prokaryotes only
47
function of nucleoid
contains a circular bacterial chromosome
48
is the nucleoid membrane bound
no
49
describe the dna in the nucleoid
compact with the use of nucleoid associated proteins
50
what organisms have flagella
both pro and eu
51
function of flagella
helps in movement and motility (swarming, runs and tumbled)
52
orientation of flagella in bacteria
peri, amphi, lopho, and monotrichous
53
structure of flagella
filament, hook, basal body
54
what is the flagella made of
bacteria: flagellin eu: microtubules
55
what organism types have a PM
both pro and eu
56
function of PM
manages cellular traffic, cell shape, and osmotic stress
57
structure of PM
phospholipid bilayer (made of glycerol and fatty acids), contains peripheral and integral membrane proteins, cholesterol (animals only) or hopanoids (bacteria only), sphingolipids (eu only)
58
what two organelles have their own 70S ribosomes
mitochondria and chloroplasts
59
what is endosymbiotic theory
organelles within the cells of eukaryotes such as mitochondria and chloroplasts, had descended from independent bacteria that came to live symbiotically within other cells