May-Connective Tissue

Question 1

what type of connective tissue is found in gelatinous ground substance?

Answer 1

connective tissue proper

Question 2

what type of connective tissue consists of cells and fibers embedded in a solid ground substance?

Answer 2

supportive connective tissue

Question 3

what types of connective tissue proper are there?

Answer 3

loose and dense

Question 4

what types of supportive connective tissue are there?

Answer 4

cartilage and bone

Question 5

name all types of loose connective tissue.

Answer 5

areolar, adipose, reticular, hemopoietic

Question 6

what type of connective tissue can be regularly or irregularly arranged?

Answer 6

dense connective tissue

Question 7

how are tendons and ligaments typically arranged?

Answer 7

arranged regularly

Question 8

is collagen acidophillic?

Answer 8

yes

Question 9

what amino acids make up collagen?

Answer 9

glycine (33%), proline (12%) and hydroxyproline (10%)

Question 10

what is the monomer of collagen?

Answer 10

tropocollagen

Question 11

protocollagen consists of 3 helically arranged polypeptide chains. what holds it together?

Answer 11

hydrogen bonds: 3 total
2 are alpha-1
1 is alpha-2

Question 12

where does synthesis of collagen occur?

Answer 12

in the cisternae of the rough ER

Question 13

where are glycoproteins added to protocollagen?

Answer 13

in the Golgi

Question 14

what acts as a coenzyme for procollagen hydroxylase?

Answer 14

ascorbic acid (Vitamin C)

Question 15

what is the purpose of procollagen peptidase?

Answer 15

to convert procollagen to tropocollagen

Question 16

what is the purpose of lysyl oxidase?

Answer 16

catalyzes the cross links between tropocollagen molecules to form mircrofibrils

Question 17

what is the most common type of collagen?

Answer 17

Type 1

Question 18

example of type 2 collagen?

Answer 18

cartilage

Question 19

example of type 3 collagen?

Answer 19

smooth muscle, aa, uterus, spleen, lungs

Question 20

example of type 4 collagen?

Answer 20

basal laminas

Question 21

example of type 5 collagen?

Answer 21

placental membranes

Question 22

elastic fibers contains an amorphous compontent and a microfibril component, what are they?

Answer 22

elastin (amorphous) and fibrillin (microfibril)

Question 23

how is elastin similar to collagen?

Answer 23

both rich in glycine and proline

Question 24

what type of collagen are reticular fibers composed of?

Answer 24

type 3

Question 25

where are reticular fibers abundant?

Answer 25

at boundaries between connective tissue and other tissues.

Question 26

what form the majority of stroma in meloid and lymphoid tissues?

Answer 26

reticular fibers

Question 27

since reticular fibers are argyophilic what does that mean?

Answer 27

blacken with silver stains

Question 28

what two fibers exhibit the same 64 nm periodicity?

Answer 28

collagen and reticular fibers

Question 29

what are examples of ground substance?

Answer 29

glycoproteins, glycosaminoglycans (GAG) and proteogylcans

Question 30

what type of GAG lacks a sulfate group and is mainly viscous?

Answer 30

hyaluronic acid

Question 31

what type of GAG is sulfated and present in hard connective tissues?

Answer 31

chondroitin