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NEET 2023 > cockroach > Flashcards

cockroach Flashcards

1
Q

cockroach size

A

1/4 - 3 inches
(.6-7.6cm)

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2
Q

length of cockroach

A

34-53mm

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3
Q

sclerites called tergites and sternites lieing

A

tergites dorsally
sternites ventrally

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4
Q

head lies —-at —-to the longitudinal body axis

A

anteriorly at right angales

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5
Q

head formed by the fusion of —-segments

A

6

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6
Q

—- of the head bears appandages forming biting and chewing type of mouth parts

A

anterior end

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7
Q

head is connected with thorax by a short extension of —— known as —–

A

prothorax
neck

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8
Q

how many pair of walking legs in thorax

A

3 pairs (each thorasic seg has 1 pair

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9
Q

first pair of wings(forewings tEgmina) arise from

A

mesothorax

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10
Q

wings used in flight

A

hind wings

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11
Q

how many segments in thorax

A

3

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12
Q

segments in abdomen

A

10

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13
Q

in females ——is boat shaped and together with —–and —- forms a brood or genital pouch

A

7th sternum boat shaped
together wityh 8th and 9th sterna

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14
Q

==== part of genital pouch contains —–,,——–,,———

A

anterior part
gonopore
spermathecal pores
collateral glands

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15
Q

in males ,genital pouch or champer lies at the ——–and bounded———by ——–and ——-by ———

A

hind end of abdomen bounded
dorsally by 9th and 10th terga
ventrally by 9th sternum

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16
Q

genital pouch of males contains —-,—-,and ——-

A

dorsal anus
ventral male genital pore and gonopophysis

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17
Q

in both sexes —-bears a pair of jointed filamentous structure called ——–

A

10th segment
anal cerci

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18
Q

how many pair of salivary glands

A

1 pair

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19
Q

gizzard aka

A

proventriculus

20
Q

gizzard has outer layer of —–and —-forming 6bhighly chiinous plates called teeth

A

outerlayer of thick circular muscles and thick inner cuticle

21
Q

crop and gizzard fn

A

crop =storing of food
gizzard =grinding of food

22
Q

entire forgut lined by

A

cuticle

23
Q

ring of ———-called hepatic or gastric caecae present in the jn of forgut andmidgut which secreets digestive juices t

A

6-7 blind tubules

24
Q

junction of midgut and hindgut present another ring of ——yelow coloured thin filamentous ——

A

100-150 yellow coloured thin filaments called malphigian tubules

25
Q

heart of cockroach consists of ——lying along ——-of thorax and abdomen

A

elongated muscular tube lying along mid dorsal line

26
Q

respirtaory stem of cockroach has network of trachea that open through ——of small holes called —–present on —-og body

A

10 piars
spiracles
lateral side

27
Q

exchange of gases takes place in th —–by ——

A

tracheoles by diffusion

28
Q

each malphigian tubules lined by

A

glandular and ciliated cells

29
Q

helps in excretion along with malph tubules

A

fat bodies nephrocytes uricose glands

30
Q

head contains only a small part of NS rest is spread along ——of body

A

ventral or belly side

31
Q

NS of cockroach consits of serioes of ———-joined by ——-on ——-side

A

fused segmentlly arranges ganglia joined by paires longitudinal connectives on ventral side

32
Q

compound eyes situated at—-of head and each eye has has —-hex ommatidiea

A

dorsal
2000

33
Q

brain is rep by—-which supplies nerves into ——–

A

supra esophageal ganglion which supplies nervesto antennae and compound eyes

34
Q

testis lying

A

lateral side in the 4-6 th abd seg,ments

35
Q

EJ opens into male gonopore sutuated —to anus

A

ventral

36
Q

mushroom gland present in —-fns as —

A

male rep sys 6 -7 th abd segments fn accesory reproductive galnd

37
Q

in male rp external gen rep by

A

male gonopophyses or phalomere(chitinous assymetrical str surrounding male gonopore

38
Q

sperms are stored in sem ves which aere glued together in the form of —–and disch during copln

A

spermatophores

39
Q

ovary lying

A

laterallly in the 2-6th abd seg

40
Q

a pair of —- presnt in —-segment which opens into genital chambers in fem rp

A

spertheca
6th seg

41
Q

sperms are transferred throgh

A

spermatophores

42
Q

oothecae length

A

3/8’‘(8mm)long

43
Q

each ovary group of——-ovarian tubules or ovarioles

A

8

44
Q

female prod——to—-oothecae

A

9 -10

45
Q

each oothecae conatins

A

14-16 eggs

46
Q

dev is —-in periplaneta mericana

A

direct

47
Q

how many times moulting in cockroach nymph

A

13

NEET 2023 (12 decks)

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