sense of insects

Question 1

in achieved by a number of different sense organs

Answer 1

perception

Question 2

results from the integration of information and stimulation by the nervous system

Answer 2

behavior

Question 3

5 basic senses

Answer 3

-sight
-hearing
-smell (olfaction)
-taste (gustation)
-touch

Question 4

5 group of organs/receptors

Answer 4

-photoreceptors
-chemoreceptors
-mechanoreceptors
-auditory organs
-temperature and humidity receptors

Question 5

detect presence and qulaity of incident light;
when image is produced it is called SIGHT

Answer 5

photoreceptors

Question 6

are teh most complex photoreceptor

Answer 6

eyes

Question 7

perceives images, color and movement;
not found in primitive wingless insects;
characterized externally by cornea being divided into hexagonal facets (each facet is partso f the individual sensory unit alled OMMATIDIUM)

Answer 7

Compound eyes

Question 8

number of facets to ce in
dragonflies
lepidoptera
musca
ants

Answer 8

20000
12000
4000
<12

Question 9

combines to produce a central light sensor called RHABDOM

Answer 9

Light receptor apparatus

Question 10

turns light into electrical energy

Answer 10

retinula cells

Question 11

eyes that are present in many immatures of endopterygota;
responsible for orientation to light

Answer 11

simple eyes / ocelli

Question 12

2 classes of simple eyes

Answer 12

dorsal ocelli (arranges in a triangle)
lateral ocelli (no orientation)

Question 13

detection of light thru the cuticle

Answer 13

dermal photoreception

Question 14

detect the presence of chemical substances in the air thru smell or taste

Answer 14

chemoreceptors

Question 15

forms of chemoreceptors

Answer 15

short pegs or hairs

Question 16

sense molecules from fluids

Answer 16

taste receptors

Question 17

perceived by OLFACTORY SENSILLA;
most numerous on the antennae and on palpi of mparts;
more numerous on males

Answer 17

smell receptors

Question 18

highly specific, volatile susbtances perceived thru the olfactory sensilla

Answer 18

pheromones

Question 19

Detect movements, vibrations and other mechanical disturbances

Answer 19

Mechanoreceptors
Touch - monitored by hair sensilla
Hearing - perception of airial vibrations by trichoid sensilla

Question 20

responds to the movements of the antennae

Answer 20

johnston’s organ

Question 21

for the typhanum to vibrate = perceived by ________ that is made up of SCOLOPIDIA

Answer 21

chordotonal organs

Question 22

where is the tymphanum in:
Grashopper
Crickets
Moths

Answer 22

1st abdominal segment
tibiae
abdomen and metathorax