CBSE Questions for Class 11 Medical Biology Structural Organisation In Animals Quiz 15 - MCQExams.com

In Cockroach nerve cord ganglia are
  • Two pairs thoracic and four pairs abdominal
  • Three pairs thoracic and six pairs abdominal
  • Three pairs thoracic and five pairs abdominal
  • Two pairs thoracic and seven pairs abdominal
Vision of Cockroach is
  • Monocular
  • Binocular
  • Mosaic
  • Superposed
Ocelli or fenestrae of Cockroach take part in
  • Sight
  • Perception of temperature
  • Perception of light
  • Perception of humidity
Region of Earthworm which is forest of nephridia is
  • Clitellar region
  • Pharyngeal region
  • Typhlosolar region
  • Intestinal region
Mushroom or utricular gland of male cockroach takes part in
  • Nourishing of sperms
  • Storing of sperms
  • Formation of inner membrane of spermatophore
  • All the above
Hormone ecdysone is produced by
  • Corpora allata
  • Prothoracic glands
  • Corpora cardiaca
  • Intercerebral gland cells
A stenohygrous animal is
  • Cockroach
  • Frog
  • Rat
  • Rabbit
Number of spiracle pairs in Periplanata americana is
  • 8
  • 9
  • 10
  • 11
A respiratory pigment is absent in
  • Earthworm
  • Frog
  • Rabbit
  • Cockroach
In Cockroach moulting is induced by secretion of
  • Prothoracic gland
  • Corpora allata
  • Corpora cardiaca
  • Neurosecretory cells
Pericardial space in Cockroach is regularly altered by muscles
  • Ciliary
  • Alary
  • Circular
  • Longitudinal
Ten pairs of spiracles with trachea are present in
  • Star fish
  • Cockroach
  • Earthworm
  • Frog
The clitellum or cingulum in earthworm is present in
  • 12, 13 and 14 segments
  • 13, 14 and 15 segments
  • 14,15 and 16 segments
  • 16, 17 and 18 segments
Cockroach blood does not contain respiratory pigment. It means
  • It does not respire
  • Cockroach respires anaerobically
  • Oxygen passes to all the tissues through diffusion
  • Oxygen reaches tissues through tracheoles
Endocrine glands of insects which secrete juvenile hormone are
  • Corpora allata
  • Corpora albicans
  • Corpora myecaena
  • All the above
In Pheretima coelomic fluid contains
  • Dissolved haemoglobin
  • Dissolved RBC
  • Broken WBC
  • Watery plasma
Typhlosole of Earthworm is a device for
  • Extra secretion of digestive enzymes
  • Increasing absorptive area
  • Slowing down passage of food
  • Crushing of food
In Earthworm, cocoon is formed by
  • Epidermal muscles
  • Setae
  • Cuticle
  • Clitellum
Pharyngeal nephridia of earthworm Pheretima occur in segments
  • 3, 4 and 5
  • 4, 5 and 6
  • 5, 6 and 7
  • 6, 7 and 8
Number of legs found on thorax of Cockroach is
  • 2
  • 4
  • 6
  • 8
Cockroach of genus Blatta is called
  • German Cockroach
  • Oriental Cockroach
  • American Cockroach
  • Australian Cockroach
Which one will excrete silicates consumed by earthworm along with food?
  • Intestinal cells
  • Basal cells
  • Chloragogen cells
  • Flame cells
Which structure of Pheretima plays the role of liver?
  • Calciferous cells
  • Chloragogen cells
  • Clitellar cells
  • Gland cells
Peculiar pungent smell of Cockroach is secretion of
  • Pheromone
  • Periplanata
  • Dermal glands
  • Cervical glands
Blood glands of Pheretima occur in segments
  • 1, 2 and 3
  • 3, 4 and 5
  • 4, 5 and 6
  • 10, 11 and 12
Number of pairs of valves found in lateral oesophageal heart of Pheretima is
  • 1
  • 2
  • 3
  • 4
In the following diagram of a leg of Cockroach parts have been indicated by alphabets. Choose the answer in which these alphabets have been correctly matched with the parts which they indicate

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  • a = coxa, b = tibia, c = tarsus, d = femur, e = trochanter
  • a = coxa, b = femur, c = trochanter, d = tarsus, e = tibia
  • a = coxa, b = tarsus, c = femur, d = tibia, e = trochanter
  • a = coxa, b = trochanter, c = femur, d = tibia, e = tarsus
In Cockroach enzyme cellulase is produced by
  • Saliva
  • Lining cells of midgut
  • Bacteria in midgut
  • Cellulose is not metabolised
Which one neutralises humic acid present in humus in the body of Earthworm?
  • Intestinal caecum
  • Typhlosole
  • Gizzard
  • Calciferous glands
Nephridia of Pheretima are
  • Meganephridia
  • Micronephridia
  • Metanephridia
  • Both B and C
Which of the following statements is incorrect pertaining to cockroach.
  • Ostia have valves which allow blood to pass only into heart
  • Thoracic and abdominal spiracles are valvular
  • Wall of trachea is made with lamina propria, endothelium and taenidia
  • The taenidia keep the trachea always open and prevent it from collapsing
Arrange the parts of alimentary canal of cockroach in correct order : I. Stomodaeal valve. II. Crop. III. Ileum. IV. Proventriculus. V. Mesenteron, VI. Colon.
  • IV,  II,  V,  I,  III,  VII
  • V,  II,  I,  III,  VI,  V
  • II,  IV,  I,  V,  III,  VI
  • II,  IV,  I,  III,  V,  VI
In 4th, 5th and 6th segments of Earthworm, lying above the pharyngeal mass and connected with pharyngeal glands are found small, red coloured follicular bodies called 
  • Septal glands
  • Blood glands
  • Salivary glands
  • Nephridia
  • Intestinal caecae
Flow of haemolymph in Cockroach is
  • Heart- Ostia-  Perivisceral sinus-  Pericardial sinus-Head Heart
  • Heart-  Pericardial sinus-Head-  Perivisceral sinus-  Ostia-   Heart
  • Heart-  Head-  Perivisceral sinus-  Pericardial sinus-  Ostia-   Heart
  • Heart-  Head- Perivisceral sinus-  Ostia-   Pericardial sinus-  Heart
If a live Earthworm is pricked with needle on its outer surface without damaging its gut, the fluid that comes out is
  • Coelomic fluid
  • Excretory fluid
  • Slimy mucus
  • Haemolymph
Which is correct in common Cockroach
  • Nitrogenous excretory product is urea.
  • Food is ground by mandibles and gizzard.
  • Malpighian tubules are excretory organs that project out from coelom.
  • Oxygen is transported by haemoglobin in blood.
End plate junction is present between:
  • Neuron and striated muscle
  • Neuron and neuron
  • Muscle and muscle
  • Both B and C
Read the statement regarding myofibril and choose the correct option:
Each myofibril has alternate dark and light bands.
2. In the center of each A band is an elastic fiber called Z-line.
A and I bands are arranged alternately throughout the length of myofibril.
The sarcomere is the functional unit of contraction.
The central part of thick filament not overlapped by a thin filament is the M line.
  • 1, 3 and 5 alone are correct
  • 2 and 5 alone are correct
  • 2 and 3 alone are correct
  • 1, 3 and 4 alone are correct.
  • 1, 3 and 2 alone are correct.
Match the following. Identify the correct match between Set-I and Set-II.
Set-ISet-II
A) CaloreceptorsI) Cold receptors
B) ProprioceptorsII) Body surface receptors
C) FrigidoreceptorsIII) Heat receptors
D) ExteroceptorsIV) Receptors found in muscles
  • A- I, B- II, C- III, D- IV
  • A- III, B- IV, C- I, D- II
  • A- IV, B- III, C- II, D- I
  • A- III, B- IV, C- II, D- I
Match the terms in column I with those in column II

  LIST I LIST II 
 ACompound eye  1 Alimentary canal 
 B Septal nephridia  2 Cockroach 
 COpen circulatory system  3 Mosaic vision 
 D Typhiosole 4 Phallomere
 E Genitalia 5 Earthworm
  • A - 3, B - 5, C - 2, D - 1, E - 4
  • A - 5, B - 3, C - 4, D - 1, E - 2
  • A - 3, B - 5, C - 1, D - 2, E - 4
  • A - 5, B - 2, C - 3, D - 1, E - 4
Choose the correct answer from the allternatives given.
What is the anterior pair of wings called in cockroach?
  • Sternum
  • Elytra
  • Tergum
  • Cerci
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of 
  • Ammonia
  • Potassium urate
  • Urea
  • Calcium carbonate
One very special feature in the earthworm (Pheretima) is that 
  • Fertilization of eggs occurs inside the body
  • The typhlosole greatly increases the effective absorption area of the digested food in the intestine
  • The S-shaped setae embedded in the integument are the defensive weapons used against the enemies
  • It has a long dorsal tubular heart.
In cockroach the flow of haemolymph is 
  • Heart -> head haemocoel --> perivisceral sinus -->pericardial sinus -->ostia

    -->heart
  • Heart -->pericardial sinus--> head haemocoel --> perivisceral sinus--> ostia -->heart
  • Heart -->head haemocoel -> previsceral sinus -->ostia -->pericardial sinus -->heart
  • Heart -->ostia -> perivisceral sinus -->pericardial sinus -> head haemocoel

    -->heart
Smooth muscles are found in all the sites mentioned below except:
  • Alimentary tract
  • Uterus
  • Oviduct
  • External muscle of the eye ball
Sate whether the following statements are true or false.
The respiratory system of cockroach is very well developed and consists of a network of branched closed tubes, called flame cells.
  • True
  • False
Consider the following statements (i)- (iii), each with one or two blanks.
(i) Bones have a hard and non-pliable ground substance rich in _____ (1) and _____ (2) which give bone its strength,
(ii) Some of the columnar or cuboidal cells get specialised for secretion and are called ______ (3) epithelium
(iii) ______ (4) junctions help to stop substances from leaking across a tissue.
Which one of the following option, gives the correct fill ups for the respective blanks from (1) to (4) in the statements?
  • (3)- glandular; (4)- Tight
  • (1)- calcium salts; (2) collagen fibres; (3)- compound; (4)- Excretory
  • (3)- glandular; (4)- Adhering
  • (1)- magnesium salts; (2) elastic fibres; (3)- compound
Choose the correct answer from the allternatives given.
How many pairs of spiracles are found in cockroach?
  • 2 pairs in thorax and 8 pairs in abdomen
  • 1 pair in thorax and 8 pairs in abdomen
  • 2 pairs in thorax and 6 pairs in abdomen
  • 3 pairs in thorax and 8 pairs in abdomen
Which of the following blood vessels in earthworm is both collecting as well as distributing?
  • Dorsal vessel
  • Ventral vessel
  • Sub neural vessel
  • Lateral oesophageal vessel
Select the correct option:
Match column I with column II and select the correct option from the codes given below:
Column I
(Parts of alimentary
canal of earthworm)		Column II
(Respective segments)
(A) Buccal cavity(i) 1-3
(B) Pharynx(ii) 3-4
(C) Oesophagus(iii) 5-7
(D) Gizzard(iv) 8-9
(E) Stomach(v) 9-14
(F) Intestine(vi) 15 to last
(G) Typhlosole(vii) 26-35
  • A- (i); B- (ii); C- (iii); D- (iv); E- (v); F- (vi); G- (vii)
  • A- (i); B- (ii); C- (iii); D- (v); E- (iv); F- (vi); G- (vii)
  • A- (i); B- (iii); C- (ii); D- (iv); E- (v); F- (vii); G- (vi)
  • A- (i); B- (iii); C- (ii); D- (v); E- (iv); F- (vii); G- (vi)
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