ECM Flashcards

1
Q

the _________ is a complex mix of proteins and polysaccharides outside the cell

A

ECM

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2
Q

the ______ is secreted by many types of cells

A

ECM

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3
Q

the ECM provides the __________ for the structure of plants and animals

A

molecular framework

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4
Q

the ECM provides ________ for cell division and directional info for movement

A

internal cues

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5
Q

what are examples of ECM

A

cell wall of bacteria (peptidoglycan)
plant cell wall
connective tissues in animal cells

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6
Q

what is the plant cell wall made of and what it

A

cellulose, pectin, carbohydrates, and lignin fibers in a complex matrix
its a barrier

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7
Q

what is the ECM composed of

A

fibrous proteins such as collagen, fibronectin, laminin, elastin, and gel-like proteoglycans

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8
Q

what provides tensile strength

A

fibrous proteins

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9
Q

what provides compressive strength

A

proteoglycans

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10
Q

___________ is composed of protein fibers in a gel-like matrix

A

connective tissues

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11
Q

what underlies epithelial tissue
can be bone, cartilage, tendons, and ligaments
had low cell density

A

connective tissue

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12
Q

the __________ is a specialized ECM found beneath epithelial tissue and provides a structural foundation for the epithelial tissues

A

basal lamina

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13
Q

is a benign tumor life threatening

A

no

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14
Q

is a malignant tumor life threatening

A

yes

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15
Q

down regulation in tumor cell =__________ in cell adhesion molecules

A

decrease

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16
Q

upregulation in tumor cells = ________ integrin gene expression

A

increases

17
Q

fibroblasts ______ determines by the structure of the _______

A

shape
ECM

18
Q

what alters gene expression

A

structure