Cell Motility Flashcards

1
Q

Motile structure

A

—cilia-epithelial cells
—flagella-tail of spermatozoa
—cytoplasmic vesicles
Axonal transport
Transport of endocytotic,exocytotic and pinocytotic vesicles
Translocation of chromosomes
Akron-miyosin interaction
—cell movement
Cell migration
Chemotaxis:bir organizmanın kimyasal bir uyarana tepki hareketi

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2
Q

Motor proteins

A

They bind to cargo molecule by their tail region and bind to cytoskeleton element from their head region
They always move to one direction
ATP kullanır
Some of them provides sliding of cytoskeletal filaments along other filaments

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3
Q

Dynein

A

2 baş bir kuyruk
İki başıyla mikrotübüle bağlanır
Daima eksi yöne gider

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4
Q

Microfilament motor proteins

A

—Myosin-1(non muscle)
found all cell
Carry +
—Myosin -2:(muscle)
Reveals cytokinesis in dividing cells
Carry+

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5
Q

Microtubule motor proteins

A

—kinesin
Bölünme sırasında kromozomları taşır
Artı yöne gider
Saltatory movement
—Dynein(cytoplasmic)
Özellikleri dynein ile aynı ama eksi yöne gider
—Dynein(Axonemal)
Cilia ve flagella da bulunur
Eksi yöne gider

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6
Q

Actinin yabancı proteinleri var

A

Trompomyosin ve troponin
Troponin 3 farklı yeri var

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7
Q

!!!

A

Hücrenin merkezi eksi
Ucu artı olur

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8
Q

Axonal transport

A

Sinir hücresinde anterograde transport by kinesin
Retrograde transport mediated by dynein

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9
Q

Cilium /flagellum

A

Bükme hareketi yapar
İnsan spermi her zaman sağa döner

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10
Q

Chemotaxis

A

Cell migration toward a chemical agent
Cell Migration in embryonic development
Fertilization(sperm 15 kimyasali tanir)
Inflammation and immunity
Nötrofilin bakteriyi yutması da buna örnek

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11
Q

Cell life cycle

A

G1 en uzun periyod
Mitoz bir saat sürer hücre döngüsünde en hızlı faz

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12
Q

Centrosome

A

Sentrozom merkezi mikrotübül bulundurmaz
Centrosome have 9 triples of MT
Gamma Tubulin serve as template of MT
There are 13 protofilaments in pericentrial material

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13
Q

Kinetochore

A

-end:connected centrosome
+end:connected chromosome

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14
Q

Centrosome

A

Interpolar =connected each other
Astral= connected cell membrane

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