Integumentary system

Question 1

outer covering of the living tissues of insects;
composed of EPIDERMIS bounded by a BASEMENT MEMBRANE and on the outside by the CUTICLE

Answer 1

integument or body wall

Question 2

produced by the epidermis;
restricts water loss;
lines the AIR TUBES, SALIVARY GLANDS, AND ALIMENTARY TRACT

Answer 2

cuticle

Question 3

thin outer layer (3 to 0.1mu);
permeable to chemicals and nutrients but impermeable to enzymes;
deeply folded but later straighten after ecdysis

Answer 3

epicuticle

Question 4

insects swallow air

Answer 4

ecdysis

Question 5

layers of epicuticle

Answer 5

homogenous layer;
cuticulin layers (critical in the growth process);
wax;
cement

Question 6

innermost layer fo the epicuticle

Answer 6

homogenous layer

Question 7

long hydrocarbon chain

Answer 7

wax

Question 8

tanned protein with lipids serving as a varnish like covering

Answer 8

cement

Question 9

thicker layer;
forms the exuvium;
gives the cuticle strength and resilience;
formed of chitin (C18 H13 NO5)

Answer 9

exocuticle

Question 10

is a nitrogenous polysaccharide linked to a protein

Answer 10

chitin

Question 11

composed of mucopolysaccharide secreted by hemocytes;
run the nerves and tracheoles

Answer 11

basement membrane

Question 12

multicellular with undifferentiated epidermal cells

Answer 12

spines

Question 13

multicellular with specialized cells

Answer 13

setae / macrotrichia / trichoid sensilla

Question 14

unicellular in origin

Answer 14

acanthae

Question 15

subcellular

Answer 15

microtrichia

Question 16

sense much of the insects tactile environment

Answer 16

setae

Question 17

large setae

Answer 17

bristles / chaetae

Question 18

cell for hair formation

Answer 18

trichogen cell

Question 19

cell for socket formation

Answer 19

tormogen cell

Question 20

functions of the integumentary system

Answer 20

provide rigid foundation for the body;
serves as point of attachment of muscles;
protect internal organs;
prevents dessication

Question 21

molted skin

Answer 21

exuviae

Question 22

triggered by hormones released when an growth reaches physical limits of the exoskeleton;
casting of the old cuticle

Answer 22

molting

Question 23

separation of cuticle form the epidermis;
physical separation of epidermis form old endocuticle

Answer 23

apolysis

Question 24

actual process of shedding off of the old skin

Answer 24

ecdysis

Question 25

fills the resulting gap with an inactive molting fluid

Answer 25

epidermal cells

Question 26

insulates and protects the EC from molting fluid's digestive action

Answer 26

cuticulin layer

Question 27

exo and endo cuticle

Answer 27

PROCUTICLE

Question 28

line the pore canals for the water retention and water loss mechanism

Answer 28

wax

Question 29

allow movement of lipids and protein toward the new epicuticle

Answer 29

pore canals

Question 30

where wax and cement layer form

Answer 30

epicuticle

Question 31

lines of weakness in the old epidermis

Answer 31

ecdysial sutures

Question 32

shedding of old skin

Answer 32

ecdysis

Question 33

processes by which the new cuticle are made more resistant to degradation, more stiffer, and less soluble

Answer 33

sclerotization / tanning

Question 34

tanning substances for the cuticle from tyrosine in the hemolymph

Answer 34

quinones

Question 35

controls sclerotization

Answer 35

bursicon

Question 36

hardening without the development of a new color

Answer 36

b - sclerotization

Question 37

hardening with colors

Answer 37

quinone sclerotization

Question 38

insect actively constructs new exoskeleton

Answer 38

pharate condition

Question 39

a condition on where the insect is newly molted, and is soft and unpigmented

Answer 39

teneral condition

Question 40

triggers the epidermal cells to change in number and size

Answer 40

ecdysone

Question 41

necessary for cuticle tanning and endocuticle formation

Answer 41

bursicon

Question 42

induce sclerotization in ligated abdomen of blowfly larvae

Answer 42

ecdepteroids

Question 43

produce as a result of tanning in the outer part of the procuticle to form the exocuticle

Answer 43

rigid cuticle

Question 44

the chitinous cuticle as it is 1st secreted is known as _________

Answer 44

procuticle

Question 45

inner undifferentiated part of the cuticle

Answer 45

endocuticle

Question 46

the sclerites are joined by _____________

Answer 46

flexible arthroidal membranes

Question 47

colorless, rubberlike protein

Answer 47

resilin