Ch 4-tissue

Question 0

Does desmosome plaque attach to microfilaments?

Answer 0

No, they attach to elements of cytoskeleton (intermediate filaments)

Question 1

Tissue

Answer 1

A group of cells that are similar in structure and function.

Question 2

What do intermediate filaments consist of?

Answer 2

Protein keratin

Question 3

Desmosome

Answer 3

Contain plaque and has transmembrane glycoproteins that extend into the intercellular space between adjacent cell membranes and attach cells to one another.

Question 4

Hemidesmosomes

Answer 4

• Resemble desmosomes but DONT link adjacent cells

- They look like half a desmosomes

Question 5

Epithelial tissue

Answer 5

Covers and lines hollow organs, body cavities ducts

Forms Glands

Allows body to work w. Internal/external environments

Question 6

Connective tissue

Answer 6

Protects and supports the body and its organs

Binds organs together

Stores energy

Helps provide body w. Immunity

Question 7

Muscular tissue

Answer 7

Produces heat

Cells that contract and generate force

Question 8

Nervous tissue

Answer 8

Detect changes inside and outside of the body

Generates electrical signals

Question 9

Other names for electrical signals

Answer 9

Nerve impulses

Nerve action potential

Question 10

What is the result of Nerve impulses/Nerve action potential

Answer 10

Muscular contractions and glandular secretion.

Question 11

What do cell junctions contact?

Answer 11

Points between plasma mem. And tissue cells

Question 12

What’s kind of strands do tight junctions consist of?

Answer 12

Weblike strands of trans membrane proteins

Question 13

Tight junctions have. Trans mem proteins that fuse together, what?

Answer 13

Outer layer of adj. plasma mem. To seal off passage ways between adj. cells

Question 14

What do right junctions prevent

Answer 14

Contents of organs leaking into blood stream or surrounding tissues

Question 15

What are the 5 types of cell junctions

Answer 15

Tight junction
Adherens junction 
Desmosomes 
Hemisesmosomes 
Gap junction

Question 16

What do adherents junctions contain?

Answer 16

Plaque and dense layer of protein

Question 17

In the adherens junction where is the plaque and layer of protein located.

And what do they attach to?

Answer 17

The inside of the plasma membrane

Mem brain protein and microfilaments of the cytoskeleton

Question 18

What do adhesion belts encircle

Answer 18

Cell