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Cockroach NCERT Flashcards

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1
Q

Cockroaches are — or —- bodied animals that are included in class — of Phylum —.

A

brown or black
Insecta , Arthropoda

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2
Q

—, —- , —- coloured cockroaches have also been reported in —regions.

A

Bright yellow, red and green
tropical

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3
Q

Their (cockroaches) size ranges from —- (—-)

A

¼ inches to 3 inches
0.6-7.6 cm

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4
Q

Cockroaches have — antenna, legs and — extension of the — that conceals —.

A

long
flat extension, upper body WALL
head

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5
Q

Cockroaches are —, —- that live in — places —–.

A

nocturnal, omnivores
damp
throughout the world

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6
Q

Cockroaches have become residents of — and thus are serious — and —–

A

human homes
pests
vectors of several diseases.

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7
Q

The — of the common species of cockroach, —- are about —- long with wings that extend — of the — in —.

A

adults
Periplaneta americana
34-53 mm
beyond the tip, abdomen
MALES

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8
Q

The body of the cockroach is — and divisible into – distinct regions – — (Figure 7.14).

A

segmented, three
head, thorax and abdomen

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9
Q

The ENTIRE body is covered by a —- (— in colour).

A

hard chitinous exoskeleton
brown

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10
Q

In each segment, exoskeleton has — called — (tergites — and sternites —)

A

hardened plates
sclerites
dorsally, ventrally

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11
Q

Sclerites are joined to each other by a — and —- (—-membrane)

A

thin and flexible articular membrane
arthrodial

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12
Q

Pronotum is

A

Chitinous plate covering protothorax and partially head also

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13
Q

Head is — in shape and lies — at RIGHT angles to the —- .

A

triangular
anteriorly
longitudinal body axis

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14
Q

Head is formed by the fusion of — and shows great —- due to —

A

six segments
mobility in all directions
flexible neck

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15
Q

The —- bears a PAIR of compound eyes.

A

head capsule

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16
Q

A pair of —- antennae arise from — lying in front of —.

A

thread like (filliform in diagram)
membranous sockets
eyes

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17
Q

Antennae have —- that help in —-

A

sensory receptors
monitoring the environment

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18
Q

— end of the head bears — forming === type of mouth parts.

A

Anterior, appendages
biting and chewing

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19
Q

The mouthparts consisting of a labrum (—-), a pair of —, a pair of —and a labium (—-)

A

upper lip, mandibles
maxillae , lower lip

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20
Q

A —-, acting as tongue (—), lies within the — enclosed by
the —-

A

median flexible lobe
hypopharynx
cavity, mouthparts

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21
Q

Thorax consists of three parts – —, — and —-

A

prothorax, mesothorax and metathorax.

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22
Q

The head is connected with thorax by a — —known as the —-

A

short extension of the prothorax
neck

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23
Q

Each thoracic segment bears a pair of —-.

A

walking legs

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24
Q

The first pair of wings arises from — and the second pair from —

A

mesothorax
metathorax

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25
---- (mesothoracic) called --- are ---, --- and ----and cover the hind wings when at rest.
Forewings, tegmina opaque dark and leathery
26
The hind wings are ---, ---- and are used in ---.
transparent, membranous flight
27
Regions in mandible
Grinding and Incision
28
What is Ocellus
Pair of vestigial simple eye present ifo compound eyes
29
Antenna is segmented. T/F
T
30
Dorsal mouth part is ---- and ventral is ----
Labrum Labium
31
The abdomen in both males and females consists of --- segments.
10
32
In females, the ---- is boat shaped and together with the---- forms a ---- pouch
7th sternum 8th and 9th sterna brood or genital
33
Genital/ brood pouch whose ---- part contains---, ---, -----.
anterior female gonopore, spermathecal pores and collateral glands
34
In males, genital ---- lies at the --- of abdomen
pouch or chamber hind end
35
Genital pouch/chamber in males is bounded dorsally by ---- and ventrally by-----.
9th and 10th terga, the 9th sternum
36
Genital pouch/chamber contains ---, --- ,-----
DORSAL anus, VENTRAL male genital pore and gonapophysis.
37
Males bear a ----- which are absent in females.
pair of short, threadlike anal styles
38
In both sexes, the --- segment bears a pair of ---- structures called anal ----.
10th. jointed filamentous cerci
39
The alimentary canal present in the --- is divided into three regions: ----, ----, ----
body cavity foregut, midgut and hindgut
40
The mouth opens into a -----, leading to a ----- called oesophagus.
short tubular pharynx narrow tubular passage
41
Oesophagus in turn opens into a --- structure called --- used for -----
sac like, crop storing of food
42
The crop is followed by --- or ----.
gizzard or proventriculus
43
Proventriculus has an outer layer of -----
thick circular muscles
44
Proventriculus has --- inner ---- forming ------ called ---
thick, cuticle six highly chitinous plate teeth
45
Gizzard helps in --- the food particles.
grinding
46
The entire ---- is lined by cuticle.
foregut
47
A ring of ---- called ----- is present at the junction of foregut and midgut, which secrete -----
6-8 blind tubules hepatic or gastric caecae digestive juice
48
At the junction of midgut and hindgut is present another ring of ----, ----, ----,
100-150, yellow coloured thin filamentous Malpighian tubules
49
Malpigian tubule help in removal of ---- products from ----.
excretory, haemolymph
50
The ----gut is broader than ----gut
hindgut, midgut
51
Hindgut is differentiated into ---, ----, -----.
ileum, colon and rectum
52
The ---- opens out through anus.
rectum
53
Blood --- system of cockroach is an ---type
vascular open
54
Blood vessels are ----- and open into space (-----).
poorly developed haemocoel
55
---- located in the haemocoel are bathed in blood (----)
Visceral organs, haemolymph
56
The haemolymph is composed of ----, and ------
colourless plasma and haemocytes
57
Heart of cockroach consists of ----- lying along -----
elongated muscular tube mid dorsal line of thorax and abdomen.
58
Heart is differentiated into ---- chambers with ---- on either side.
funnel shaped, ostia
59
Blood from --- enter heart through --- and is pumped ---- again
sinuses. ostia anteriorly to sinuses
60
The respiratory system consists of a ----, that open through ----- of ---- called ---
network of trachea 10 pairs, small holes spiracles
61
Spiracles are present on the ----- of the body.
lateral side
62
Thin branching tubes (-----) carry ---- from the air to all the parts.
tracheal tubes subdivided into tracheoles oxygen
63
The opening of the spiracles is regulated by the ----.
sphincters
64
Exchange of gases take place at the ---- by ----
tracheoles diffusion
65
Excretion is performed by ----.
Malpighian tubules
66
Each malphigian tubule is lined by --- and ---- cells.
glandular and ciliated
67
Malphigian tubules absorb ---- and convert them into ---- which is excreted out through the ---. Therefore, this insect is called ---.
nitrogenous waste products uric acid, hindgut uricotelic
68
In addition to malphigian tubules, the ---, --- and ----- also help in excretion.
fat body, nephrocytes and urecose glands
69
The nervous system of cockroach consists of a ----- joined by ----- on ------ side.
series of fused, segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side
70
---- ganglia lie in the thorax, and --- in the abdomen.
Three, six
71
The nervous system of cockroach is present ---- body.
spread throughout the
72
The head holds a bit of a nervous system while the rest is situated along the ----- part of its body
ventral (belly-side)
73
So, now you understand that if the --- of a cockroach is cut off, it will still live for as long as ----.
head, one week
74
In the head region, the brain is represented by ---- ganglion which supplies NERVES to ---- and ----.
supra-oesophageal antennae and compound eyes
75
In cockroach, the sense organs are ---, ---------, etc
antenna, maxillary and labial palps, cerci, compound eye
76
The compound eyes are situated at the ---- surface of the head.
dorsal
77
Each eye consists of about ----
2000 hexagonal ommatidia
78
With the help of --- ommatidia, a cockroach can receive ---- of an object. This kind of vision is known as ----vision
several. several images mosaic
79
Mosaic vision with more --- but less resolution, being common during --- (hence called ----).
sensitivity, resolution= night nocturnal vision
80
Cockroaches are --- and both sexes have --- reproductive organs
dioecious well developed
81
Male reproductive system consists of a pair of testes one lying on EACH --- side in the---- segments.
lateral, 4th -6th abdominal
82
From each testis arises a ----
thin vas deferens
83
Vas deference which opens into --- through ---
ejaculatory duct seminal vesicle
84
The ejaculatory duct opens into ---- situated VENTRAL to ---.
male gonopore anus
85
A characteristic --- shaped gland is present in ----- segments which functions as an ---- gland.
mushroom the 6th-7th abdominal accessory reproductive
86
The external genitalia are represented by ---- or ----
male gonapophysis or phallomere
87
Phallomeres are ---- structures, surrounding the ----
chitinous asymmetrical male gonopore
88
The sperms are stored in the --- and are --- together in the form of --- called-----
seminal vesicles, glued bundles spermatophores
89
----- are discharged during copulation
spermatophores
90
The female reproductive system consists of ---- ovaries, lying --- in the ----- segments.
two LARGE, laterally 2nd – 6th abdominal
91
Each ovary is formed of a group of ---- or ----
eight ovarian tubules or ovarioles
92
Ovarioles contain a chain of ----
developing ova.
93
Oviducts of each ovary unite into a --- (also called ----)
single median oviduct vagina
94
Vagina opens into which opens into the ----.
genital chamber
95
A PAIR of ---- is present in the 6th segment which opens into the ---- in females
spermatheca genital chamber
96
Sperms are transferred through --.
spermatophores
97
Their FERTILISED eggs are encased in --- called ----.
capsules, oothecae
98
Ootheca is a --- to ---- capsule, about ---- long.
dark reddish to blackish brown 3/8" (8 mm)
99
Ootheca are --- or ---- to a suitable surface, usually in a crack or crevice of -----, -----
dropped, glued high relative humidity near a food source.
100
On an average, females produce ---- oothecae, each containing --- eggs.
9-10 14-16
101
The development of P. americana is ----, meaning there is development through ----.
paurometabolous nymphal stage
102
The nymphs look very different from adults. T/F
False
103
The nymph grows by --- about --- times to reach the adult form.
moulting, 13
104
The --- nymphal stage has --- but ONLY adult cockroaches have wings.
next to last wing pads
105
Many species of cockroaches are --- and are of --- importance.
wild, no economic
106
A few species thrive in and around ----
human habitat.
107
They are ---- because they destroy food and --- it with their ---. They can transmit a variety of ---- diseases by contaminating food material.
pests, contaminate SMELLY excreta BACTERIAL
108
Types of phallomere
Right, Left and Ventral
109
Left phallomere consists of
Titillator and Psuedopenis
110
Mushroom glands have ---- tubules
Short and long
111
Genital pouch in females consist of
Genital chamber, Vestibulum
112
Midgut is also called
Mesenteron
113
1st chamber of heart is called
Anterior aorta
114
No of alary muscles and no of chambers in heart
12pairs of alary muscle 13 chambers in heart
115
Segments in cockroach bear ---.
jointed appendages
116
A PAIR of--- is present near crop. . A pair of testes is present in
salivary gland
117
Fertilisation is internal. T/F
T
118
Female produces 9-10 ootheca bearing ----. After rupturing of single ootheca --- young ones, called --- come out.
developing embryos SIXTEEN, nymphs
119

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