Unit 2 - Practice Quiz

1 Which of the following is the non-cellular, outermost layer of the insect integument?

2 The primary chemical constituent of the insect procuticle, chitin, is a polymer of:

3 Which layer of the epicuticle is responsible for preventing water loss and is critical for insect survival in dry environments?

4 The separation of the old cuticle from the underlying epidermis during molting is termed:

5 Which hormone is primarily responsible for initiating the molting process?

6 The hardening and darkening of the new cuticle after molting is known as:

7 The insect body is divided into three functional regions (tagmata). They are:

8 Which type of head orientation is characterized by mouthparts directed downwards at a right angle to the body axis (e.g., Grasshoppers)?

9 In prognathous insects, the mouthparts are directed:

10 The Opisthognathous head orientation is typically found in:

11 The internal skeletal structure of the insect head that provides rigidity and muscle attachment points is called the:

12 The basal segment of the insect antenna that articulates with the head capsule is the:

13 Johnston's organ, a sensory structure capable of detecting flight speed and sound, is located in which antennal segment?

14 Termites possess bead-like antennae where segments are globular and uniform in size. This type is called:

15 The Geniculate or elbowed antenna is characteristic of:

16 Male mosquitoes possess feathery antennae with whorls of long hairs used to detect female wing beats. This type is known as:

17 Which antennal type is clubbed with a gradual thickening towards the tip?

18 The bristle-like modification on the antenna of a House fly is called the:

19 The insect thorax consists of three segments. Which of the following correctly lists them from anterior to posterior?

20 Which thoracic segments typically bear wings in pterygote insects?

21 The dorsal plate of a thoracic segment is called the:

22 The generalized insect abdomen typically consists of how many segments (including reduced/modified ones)?

23 Which of the following appendages are found on the 11th abdominal segment and serve sensory functions?

24 The 'upper lip' of the generalized insect mouthparts is the:

25 In chewing mouthparts, which structure is primarily responsible for grinding and cutting food?

26 The 'tongue-like' structure located centrally in the preoral cavity is the:

27 Which mouthpart type is characteristic of House flies?

28 In the piercing-sucking mouthparts of a mosquito, the structures that pierce the skin (stylets) are modifications of:

29 Butterflies and moths possess which type of mouthparts?

30 Chewing and lapping mouthparts are found in:

31 Rasping and sucking mouthparts are unique to:

32 Identify the correct sequence of insect leg segments starting from the body (proximal to distal):

33 The legs of a Cockroach are adapted for running. This modification is termed:

34 Saltatorial legs, adapted for jumping (e.g., Grasshopper), typically exhibit an enlargement of which segment?

35 Raptorial legs are modified for grasping prey and are found in:

36 Fossorial legs are modified for ________ and are found in Mole Crickets.

37 The pollen basket (Corbicula) found on the hind legs of worker honey bees is a modification of the:

38 Natatorial legs are flattened and fringed with hairs for swimming. These are found in:

39 The forewings of grasshoppers and cockroaches are leathery and parchment-like, known as:

40 Hard, sclerotized forewings that serve as protective covers in Beetles (Coleoptera) are called:

41 In Diptera (True flies), the hind wings are modified into knob-like structures used for balancing, called:

42 The term Hemelytra refers to the forewings of True Bugs (Heteroptera), which are:

43 Tiny hooks present on the anterior margin of the hind wing that attach to the forewing in Hymenoptera (Bees/Wasps) are called:

44 In the Frenulum-Retinaculum wing coupling mechanism found in moths, the Frenulum is located on the:

45 The Jugum is a finger-like lobe used for wing coupling in primitive Lepidoptera. It projects from the:

46 In the Comstock-Needham system of wing venation, the unbranched vein usually forming the anterior margin of the wing is the:

47 Which vein typically follows the Radius and is often divided into anterior and posterior branches ( to )?

48 The triangular area at the base of the wing, often separated by a fold, is called the:

49 Small window-like clear spots on the wings (as seen in some moths) are called:

50 The opaque, pigmented spot near the costal margin of the wing in Dragonflies and Damselflies is the: