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Histology > anatomy of a celll > Flashcards

anatomy of a celll Flashcards

1
Q

cytoskeleton

A

dtermines shape and fluidity of thr cell

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2
Q

mitochondria

A

energy production

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3
Q

RER

A

protein synthesis

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4
Q

SER

A

cholesterol and lipid synthesis

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5
Q

golgi

A

modification and pakcaging of secretions
Transport vesicles arrive at the Golgi from the SER/RER

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6
Q

lysosomes

A

hydrolytic enzymes for intracellular digestion

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7
Q

nucleus

A

contains genetic code

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8
Q

inclusions

A

components that have been synthesised by the cell itself

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9
Q

microfilaments

A

composed of the protein actin

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10
Q

intermediate filaments

A

composed of six main proteins, which vary in different cell types

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11
Q

microtubules

A

composed of 2 tubulin proteins; alpha and beta

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12
Q

cnetrosome

A

organising centre where microtubules originate

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13
Q

kinesin

A

atpase that moves towards cell periphery

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14
Q

dynein

A

atpase that moves tpward cell centre

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15
Q

location of rna syntheis s

A

nucleus

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16
Q

where are trna and mrna transcribed

A

nucelus

17
Q

where is rrna transcribed

A

nucleolus

18
Q

euchromatin

A

DNA that is more dispersed and is actively undergoing transcription

19
Q

heterochromatin

A

DNA that is highly condensed and not undergoing transcription

20
Q

where are ribosomes formed

A

nucelolus

21
Q

small subunit of ribosomes

A

binds rna

22
Q

large subunit of ribosomes

A

catalysis formation of peptide bonds

23
Q

roles of golgi

A

Adds sugars
Cleaves some proteins
Sorts macromolecules into vesicles.

24
Q

cristae

A

what the inner membrane of mitochondria are folded to form which act to increase SA

25
Q

What junctions prevent diffusion

A

occluding/ tight/ zonula occludens

26
Q

anchoring/ zonula ahderens

A

: Link submembrane actin bundles of adjacent cells.

27
Q

desmosomes

A

link submembrane intermediate filaments of adjacent molecules

28
Q
A

Histology (5 decks)

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