Types Of Cell Junctions Flashcards

1
Q

Which type of cell junction is also known as “tight junction”

A

Zonula occludens

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2
Q

Which type of cell junction involves sharing of intrinsic proteins BETWEEN adjacent cells

A

Zonula occludens

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3
Q

What are 2 functions of zonula occludens (tight junctions)

A

Strong attachment

Prevent passage between cells

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4
Q

Which type of cell junction is also known as “adhesion belt”

A

Zonula adherents

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5
Q

Which type of cell junction contains cadherins (linkage proteins) between cells

A

Zonula adherens (adhesion belt)

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6
Q

At which type of cell junction do cytoskeleton attach to cell membranes

A

Zonula adherens (adhesion belt)

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7
Q

What are 2 functions of zonula adherens (adhesion belt)

A

Strong attachment

Structural stability

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8
Q

Which type of cell junction is known as a Desmosome

A

Macula adherens

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9
Q

What is the function of macula adherens (desmosome)

A

Strong attachment

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10
Q

What type of cell junction presents as 6 connections arranged in a cylinder

A

Gap junctions

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11
Q

What are the 3 junctions in order beginning with the free cell surface

A

Zonula occludens
Zonula adherens
Macula adherens

(OAM)

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12
Q

What does a hemidesmosome do

A

Helps to connect epithelial cells to the basal lamina

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13
Q

What transmembrane protein is present at focal point contacts

A

Integrin

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14
Q

What is an autoimmune skin disease causing large blistering lesions that burst but do heal

A

Bulbous pemphigoid

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15
Q

What is the cause of bulbous pemphigoid

A

Antibodies binding to particular proteins in hemidesmosomes

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16
Q

What is an autoimmune skin disease that causes large blistering lesions that do not heal easily

A

Pemphigus Vulgaris

17
Q

What is cholera

A

Acute bacterial infection of the small intestines

18
Q

Toxins disrupting proteins in the __________ _________ is the cause of cholera

A

Zonula occludens