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Zoology > Cockroach NCERT > Flashcards

Cockroach NCERT Flashcards

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
Q

—- (mesothoracic) called
— are —, — and —-and cover the hind wings when at
rest.

A

Forewings, tegmina
opaque dark and leathery

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26
Q

The hind wings are —, —- and are used in —.

A

transparent, membranous
flight

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27
Q

Regions in mandible

A

Grinding and Incision

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28
Q

What is Ocellus

A

Pair of vestigial simple eye present ifo compound eyes

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29
Q

Antenna is segmented. T/F

A

T

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30
Q

Dorsal mouth part is —- and ventral is —-

A

Labrum
Labium

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31
Q

The abdomen in both males and females consists of — segments.

A

10

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32
Q

In females, the —- is boat shaped and together with the—- forms a —- pouch

A

7th sternum
8th and 9th sterna
brood or genital

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33
Q

Genital/ brood pouch whose —- part contains—, —, —–.

A

anterior
female gonopore, spermathecal pores and collateral glands

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34
Q

In males, genital —- lies at the — of abdomen

A

pouch or chamber
hind end

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35
Q

Genital pouch/chamber in males is bounded dorsally by —- and ventrally by—–.

A

9th and 10th terga, the 9th sternum

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36
Q

Genital pouch/chamber contains —, — ,—–

A

DORSAL anus, VENTRAL male genital pore and gonapophysis.

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37
Q

Males bear a —– which are absent in females.

A

pair of short, threadlike anal styles

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38
Q

In both sexes, the — segment bears a pair of —- structures called anal —-.

A

10th. jointed filamentous
cerci

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39
Q

The alimentary canal present in the — is divided into three regions: —-, —-, —-

A

body cavity
foregut, midgut and hindgut

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40
Q

The mouth opens into a —–, leading to a —– called oesophagus.

A

short tubular pharynx
narrow tubular passage

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41
Q

Oesophagus in turn opens into a — structure called — used for —–

A

sac like, crop
storing of food

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42
Q

The crop is followed by — or —-.

A

gizzard or proventriculus

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43
Q

Proventriculus has an outer layer of —–

A

thick circular muscles

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44
Q

Proventriculus has — inner —- forming —— called —

A

thick, cuticle
six highly chitinous plate
teeth

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45
Q

Gizzard helps in — the food particles.

A

grinding

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46
Q

The entire —- is lined by
cuticle.

A

foregut

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47
Q

A ring of —- called —– is present at the junction of foregut and midgut, which secrete —–

A

6-8 blind tubules
hepatic or gastric caecae
digestive juice

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48
Q

At the junction of midgut and
hindgut is present another ring of —-, —-, —-,

A

100-150, yellow coloured
thin filamentous
Malpighian tubules

49
Q

Malpigian tubule help in removal of —- products from —-.

A

excretory, haemolymph

50
Q

The —-gut is broader than —-gut

A

hindgut, midgut

51
Q

Hindgut is differentiated into
—, —-, —–.

A

ileum, colon and rectum

52
Q

The —- opens out through anus.

A

rectum

53
Q

Blood — system of cockroach is an —type

A

vascular
open

54
Q

Blood vessels are —– and open into space (—–).

A

poorly developed
haemocoel

55
Q

—- located in the haemocoel are bathed in blood (—-)

A

Visceral organs, haemolymph

56
Q

The haemolymph is composed of —-, and ——

A

colourless plasma and haemocytes

57
Q

Heart of cockroach consists of —– lying along —–

A

elongated muscular tube
mid dorsal line of thorax and abdomen.

58
Q

Heart is differentiated into —- chambers with —- on either side.

A

funnel shaped, ostia

59
Q

Blood from — enter heart through — and is pumped —- again

A

sinuses. ostia
anteriorly to sinuses

60
Q

The respiratory system consists of a
—-, that open through —–
of —- called —

A

network of trachea
10 pairs, small holes
spiracles

61
Q

Spiracles are present on the
—– of the body.

A

lateral side

62
Q

Thin branching tubes (—–)
carry —- from the air to all the parts.

A

tracheal tubes subdivided into tracheoles
oxygen

63
Q

The opening of the spiracles is regulated by the —-.

A

sphincters

64
Q

Exchange of gases take place at the —- by —-

A

tracheoles
diffusion

65
Q

Excretion is performed by —-.

A

Malpighian tubules

66
Q

Each malphigian tubule is lined by — and —- cells.

A

glandular and ciliated

67
Q

Malphigian tubules absorb —- and convert them into —- which is excreted out through the —.
Therefore, this insect is called —.

A

nitrogenous waste products
uric acid, hindgut
uricotelic

68
Q

In addition to malphigian tubules, the —, — and —– also help in excretion.

A

fat body, nephrocytes and urecose glands

69
Q

The nervous system of cockroach consists of a —– joined by —– on —— side.

A

series of fused, segmentally arranged ganglia joined by paired longitudinal connectives
on the ventral side

70
Q

—- ganglia lie in the thorax, and — in the abdomen.

A

Three, six

71
Q

The nervous system of cockroach is present —- body.

A

spread throughout the

72
Q

The head holds a bit of a nervous system while the rest is situated along the —– part of its body

A

ventral (belly-side)

73
Q

So, now you understand that if the
— of a cockroach is cut off, it will still live for as long as —-.

A

head, one week

74
Q

In the head region, the brain is represented by —- ganglion
which supplies NERVES to —- and —-.

A

supra-oesophageal
antennae and compound eyes

75
Q

In cockroach, the sense organs are —, ———, etc

A

antenna, maxillary and labial palps, cerci, compound eye

76
Q

The compound eyes are situated at the —- surface of the head.

A

dorsal

77
Q

Each eye consists of about —-

A

2000 hexagonal ommatidia

78
Q

With the help of — ommatidia, a cockroach can receive —- of an object.
This kind of vision is known as —-vision

A

several.
several images
mosaic

79
Q

Mosaic vision with more — but less resolution, being common during
— (hence called —-).

A

sensitivity, resolution= night
nocturnal vision

80
Q

Cockroaches are — and both sexes have — reproductive organs

A

dioecious
well developed

81
Q

Male reproductive system consists of a pair of testes one lying on EACH — side in the—-
segments.

A

lateral, 4th -6th abdominal

82
Q

From each testis arises a —-

A

thin vas deferens

83
Q

Vas deference which opens into — through —

A

ejaculatory duct
seminal vesicle

84
Q

The ejaculatory duct opens into
—- situated VENTRAL to —.

A

male gonopore
anus

85
Q

A characteristic — shaped gland is present in —– segments which functions as an —- gland.

A

mushroom
the 6th-7th abdominal
accessory reproductive

86
Q

The external genitalia are represented by —- or —-

A

male gonapophysis or phallomere

87
Q

Phallomeres are —- structures,
surrounding the —-

A

chitinous asymmetrical
male gonopore

88
Q

The sperms are stored in the — and are — together in the form of — called—–

A

seminal vesicles, glued
bundles
spermatophores

89
Q

—– are discharged during copulation

A

spermatophores

90
Q

The female reproductive system consists of —- ovaries, lying — in the —– segments.

A

two LARGE, laterally
2nd – 6th abdominal

91
Q

Each ovary is formed of a group of —- or —-

A

eight ovarian tubules or ovarioles

92
Q

Ovarioles contain a chain of —-

A

developing ova.

93
Q

Oviducts of each ovary unite into a — (also called —-)

A

single median oviduct
vagina

94
Q

Vagina opens into which opens into the —-.

A

genital chamber

95
Q

A PAIR of —- is present in the 6th segment which opens into the —- in females

A

spermatheca
genital chamber

96
Q

Sperms are transferred through –.

A

spermatophores

97
Q

Their FERTILISED eggs are encased in — called —-.

A

capsules, oothecae

98
Q

Ootheca is a — to —- capsule, about —- long.

A

dark reddish to blackish brown
3/8” (8 mm)

99
Q

Ootheca are — or —- to a suitable surface, usually in a crack or crevice of —–, —–

A

dropped, glued
high relative humidity near a food source.

100
Q

On an average, females produce —- oothecae, each containing — eggs.

A

9-10
14-16

101
Q

The development of P. americana
is —-, meaning there is development through —-.

A

paurometabolous
nymphal stage

102
Q

The nymphs look very different from adults. T/F

A

False

103
Q

The nymph grows by — about — times to reach the adult form.

A

moulting, 13

104
Q

The — nymphal stage has — but ONLY adult cockroaches have wings.

A

next to last
wing pads

105
Q

Many species of cockroaches are — and are of — importance.

A

wild, no economic

106
Q

A few species thrive in and around —-

A

human habitat.

107
Q

They are —- because they destroy food and — it with their —. They can transmit a variety of —- diseases by contaminating food material.

A

pests, contaminate
SMELLY excreta
BACTERIAL

108
Q

Types of phallomere

A

Right, Left and Ventral

109
Q

Left phallomere consists of

A

Titillator and Psuedopenis

110
Q

Mushroom glands have —- tubules

A

Short and long

111
Q

Genital pouch in females consist of

A

Genital chamber, Vestibulum

112
Q

Midgut is also called

A

Mesenteron

113
Q

1st chamber of heart is called

A

Anterior aorta

114
Q

No of alary muscles and no of chambers in heart

A

12pairs of alary muscle
13 chambers in heart

115
Q

Segments in cockroach bear —.

A

jointed appendages

116
Q

A PAIR of— is present near crop. . A pair of testes is present in

A

salivary gland

117
Q

Fertilisation is internal. T/F

A

T

118
Q

Female produces 9-10 ootheca bearing —-. After rupturing of single
ootheca — young ones, called — come out.

A

developing embryos
SIXTEEN, nymphs

119
Q
A

Zoology (6 decks)

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