Unit II: The Antennae, Eyes, Mouth and

Question 1

Elongated, segment structures of varying designs.

Answer 1

Antennae

Question 2

Three main parts of antenna.

Answer 2

Scape
Pedicel
Flagellum

Question 3

A basal segment.

Answer 3

Scape

Question 4

Second segment.

Answer 4

Pedicel

Question 5

Whip-like part beyond pedicel.

Answer 5

Flagellum

Question 6

Bristle like, segments taper distantly.

Answer 6

Setaceous

Question 7

Threadlike cylindrical.

Answer 7

Filiform

Question 8

Bead-like segments.

Answer 8

Moniliform

Question 9

Sawlike

Answer 9

Serrate

Question 10

Comlike

Answer 10

Pectinate

Question 11

Clubbed

Answer 11

Clavate

Question 12

Having a head.

Answer 12

Capitate

Question 13

Leaf-like

Answer 13

Lamellate

Question 14

Elbowed

Answer 14

Geniculate

Question 15

Feathery

Answer 15

Plumose

Question 16

The last segment enlarged and bears conspicuous dorsal bristle called arista.

Answer 16

Aristate

Question 17

Last segment with elongated terminal style.

Answer 17

Stylate

Question 18

Consisting of thousand hexagonal tubes called ommatidia.

Answer 18

Compound eyes

Question 19

Three little bumps forming a triangle.

Answer 19

Simple eyes/ocelli

Question 20

Two compound eyes are separated.

Answer 20

Dichoptic

Question 21

Top of the head.

Answer 21

Holoptic

Question 22

The mandibles cut off and grind solid food, the maxillae and labium push it into the esophagus.

Answer 22

Mandibulate

Question 23

The mandibles are produced in sharp blades, and the maxillae into long probing style.

Answer 23

Cutting-Sponging Type

Question 24

The mandibles and maxillae are non-functional and the remaining parts form a proboscis with a sponge-like apex called LABELLA.

Answer 24

Sponging Type

Question 25

The mandibles and labrum are chewing type and are used to grasping prey, molding wax or nest material.

Answer 25

Chewing-lapping Type

Question 26

The mouthparts of this group are modified to pierce tissuesand suck juices from them.

Answer 26

Piercing Sucking Type

Question 27

The food either nectar or liquid food already are sucked up by means of long proboscis composed only of a united galea of each maxillae.

Answer 27

Siphoning Type

Question 28

Has a cone-shaped beak formed from clypeus labrum, parts of maxillae and labium.

Answer 28

Rasping-Sucking Type

Question 29

is the outer layer of insects and bends inwards at various points to form supporting ridges or braces.

Answer 29

Integument

Question 30

The 3 layers of the Body Wall

Answer 30

Epidermis Cuticle Basement Membrane

Question 31

Cellular layer of the body wall; secretes molting fluid involved in the growth process.

Answer 31

Epidermal Cell

Question 32

Non-cellular layer of the body wall. Covers the entire body surface and also lines the insects’ air tube lining, salivary glands and parts of digestive tracts.

Answer 32

Cuticle

Question 33

3 Layers of the Cuticle

Answer 33

Epicuticle Exocuticle Endocuticle

Question 34

Separates the body wall with the internal organ.

Answer 34

Basement Membrane

Question 35

Comprises the globular to capsule like anterior body segment of an insect which bears the eyes, antennae and mouthparts.

Answer 35

Head

Question 36

The anterior part of the head.

Answer 36

Frons

Question 37

The anterior area below the dorsum of the head, between and behind the eyes.

Answer 37

Vertex

Question 38

The area below the compound eye, on the side of the head.

Answer 38

Gena

Question 39

The lip-like sclerite.

Answer 39

CLYPEUS

Question 40

Condition wherein the mouthparts are at the right angle to the body axis.

Answer 40

Hypognathous Head

Question 41

Condition wherein the mouthparts are projecting backwards between the legs.

Answer 41

Opisthognathous Head

Question 42

Classification of Insect Head

Answer 42

Prognathous Head

Question 43

Helps in putting the food into the mouth. paired segmented structure used for mastication and lie directly behind the mandibles.

Answer 43

Maxillae

Question 44

Tooth-like structure used for chewing, grinding, tearing or pincing-off solid food. Heavily sclerotized, paired and unsegmented

Answer 44

Madibles

Question 45

‘Upper lip’ found posterior to the maxillae.

Answer 45

Labrum

Question 46

‘Lower lip’ found posterior to the maxillae.

Answer 46

Labium

Question 47

Central tongue-like that drops from the membranous floor of the head, and bears the opening of salivary duct.

Answer 47

Hypopharynx