Cell Inteeractions 1 Flashcards

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1
Q

What is the ECM ?

A

The stuff outside the cell

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2
Q

What are two things mixed together that make up the ECM

A

Gel like substances and fibrous type substances

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3
Q

What environment do the gel like substances have ?

A

Squishy like environment

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4
Q

What do cells create on their own by secreting polysaccharides and proteins ?

A

They create their own Extra cellular environment

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5
Q

What does the ECM do ?

A

Provide an attachment point for our cells

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6
Q

What is an example of the ECM providing an attachment point for our cells ?

A

Our bones because bones are mostly ECM so cells will attach to them

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7
Q

What happens when a cell becomes detached from the bone ?

A

It drifts in the body and becomes one of two leading factors that cause cancer

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8
Q

How many primary molecules make up the ECM ?

A

Two primary Molecules

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9
Q

What are the two primary molecules that make up the ECM called ?

A

Proteins and polysaccharides

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10
Q

What do proteins provide for the ECM ?

A

Provide tough and fibrous strength for the ECM

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11
Q

What do polysaccharides do for the ECM ?

A

They get secreted by the cell and when in the ECM they trap water in the sugar swell up into a gel like state.

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12
Q

What will the ECM always have ?

A

Proteins and sugars

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13
Q

Do stronger ECMs have more proteins or polysaccharides ?

A

Proteins

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14
Q

What is the main ECM protein called ?

A

Collagen

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15
Q

What proteins will all ECM have some of ?

A

Collagen

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16
Q

What is the first thing we should do to collagen ?

A

Wrap it tightly together

17
Q

Where are collagens modified ?

A

In the ER

18
Q

What allows for for hydrogen bonding between strands ?

A

An OH group

19
Q

What is the main reason why the disease Scurvy happens ?

A

The reason is because collagen is not being held together

20
Q

Why may collagen stop being held together ?

A

The enzyme propyl hydroxylase is not working

21
Q

What vitamin is required in order to make the enzyme propyl hydroxylase functional ?

A

Vitamin C

22
Q

What happen to your ECM if collagen is not functioning?

A

ECM becomes defective and causes your cells to fall apart