CBSE Questions for Class 11 Medical Biology Structural Organisation In Animals Quiz 13 - MCQExams.com

Gizzard in Pheretima is an organ 
  • Secretes slime
  • For absorption of digested food
  • For excretion
  • For crushing food
Inner cuticle layer is present in alimentary canal of earthworm is in 
  • Pharynx
  • Gizzard
  • Intesline
  • Stomach
Chloragogen cells of Pheretima have similar function like the vertebrate 
  • Kidney
  • Malpighian corpuscle
  • Liver
  • Lungs
Typhlosole in earthworm begins from ........... segment.
  • 15$$^{th}$$
  • 9$$^{th}$$
  • 26$$^{th}$$
  • 27$$^{th}$$
Plantulae are found in cockroach upon 
  • Pretarsus
  • Tarsus
  • Trochanter
  • Coxa
In cockroach, food is crushed in which part of the body?
  • Crop
  • Gizzard
  • Mesenteron
  • Oesophagus
Number of sternal plates present at the abdomen of female cockroach is
  • 6
  • 7
  • 8
  • 9
In which part of alimentary canal of cockroach is the invagination of cuticle found?
  • Anterior part
  • In midpart
  • In posterior part
  • Both in anterior and posterior part
Which of the following is exonephric nephridia?
  • Pharyngeal nephridia
  • Septal nephridia
  • Integumentary nephridia
  • Integumentary and pharyngeal nephiridia
The flow of blood in the dorsal blood vessel of earthworm is 
  • Backwards
  • Forwards
  • Backwards in half and forward in other half
  • None of the above
Septal nephridia of earthworm are 
  • Responsible for excretion
  • Present in all body segments
  • Responsible for keeping the surface moist
  • Present in 4, 5, 6 segments
Similarity between man and earthworm is 
  • Both are nephrotelic
  • Both are ammonotelic
  • Both are ureotelic
  • Both are uricotelic
Which of the following pigment is found in the blood of Pheretima?
  • Haemoglobin
  • Haemocyanin
  • Erythrocruorin
  • Both A and C
Which statement is true about earthworm?
  • Blood is blue
  • Blood is red but haemoglobin is dissolved in plasma
  • Blood pigment is haemocyanin
  • Blood is red but haemoglobin is dissolved in RBC's
Pharyngeal nephridia of Pheretima are found in segments 
  • 6,7 and 8
  • 5, 6 and 7
  • 3, 4 and 5
  • 4, 5 and 6
Septal nephridia of earthworm discharge excretory product into 
  • Body cavity
  • Pharynx
  • Outside on body surface
  • Lumen of intestine
Origin of nephridia in earthworm is
  • Ectodermal
  • Endodermal
  • Mesodermal
  • None of the above
Excretory organs in earthworm are 
  • Flame cells
  • Nephridia
  • Malpighian tubules
  • Skin
Number of earthworms found in one acre of land is approximately 
  • 500
  • 5000
  • 50,000
  • 5 lakh
Body segments are definite and well marked in
  • Hydra
  • Taenia
  • Earth worm
  • Cockroach
Exonephric secretion in earthworm is by 
  • Septal nephridia
  • Pharyngeal nephridia
  • Integumentary nephridia
  • Both B and C
Wings of cockroach are mainly helpful in
  • Egg laying
  • Preying
  • Finding the mate
  • Protect against odds
Size of cocoon of earthworm is
  • 1 to 2 m.m
  • 2.0 to 2.4 m.m
  • 2.0 to 2.4 c.m
  • 5 to 8 m.m
Undeveloped wings are found in
  • Housefly
  • Spider
  • Mosquito
  • Cockroach (Blatta)
Which is correct about earthworm?
  • It can crawl on smooth surface easily
  • It secretes cocoon around unfertilized eggs
  • It has brain but no head
  • It has no locomotory organs
Periplaneta americana differs from Blatta orientalis in
  • Well developed wings
  • Absence of wings
  • Only first pair wings developed
  • Second pair wings developed
Which structure is represented typically in every segment of earthworm?
  • Septal nephridia
  • Hearts
  • Genital pores
  • Ganglia
Plantulae are found in cockroach upon
  • Pretarsus
  • Femur
  • Trochanter
  • Coxa
Give the name of blood vessel, which arises from first chamber of heart in cockroach.
  • Nephrocyte
  • Fenestrae
  • Ostia
  • Anterior aorta
Physiologically, the heart of cockroach is
  • Neurogenic
  • Myogenic
  • Epigenic
  • Agenic
Excretion in most annelids take place by 
  • Kidneys
  • Flame cells
  • Nephridia
  • Both B and C
Tissue which connects skin with underlying muscle is made up of:
  • Epithelial tissue
  • Blood
  • Adipose tissue
  • Areolar connective tissue
Maximum digestion takes place in which part of cockroach?
  • In crop
  • In gizzard
  • In mesenteron
  • In oesophagous
Function of malpighian tubules of cockroach
  • Digestion
  • Respiration
  • Excretion
  • Reproduction
The fat body of cockroach contains
  • Oenocytes
  • Mycetocytes
  • Trophocytes
  • All of the above
When subminimal stimulus is given, then
  • Muscles contract vigorously
  • Muscles contract slowly
  • Muscles never contract
  • Muscles become fatigued
Choose the correct order of excretory organs in cockroach, earthworm and rabbit respectively.
  • Skin, Malpighian tubules and kidney
  • Malpighian tubules, nephridia and kidney
  • Nephridia, Malpighian tubules and kidney
  • Nephridia, kidney and green gland
Phosphagen in vertebrates is:
  • Phospho creatine
  • Phospho arginine
  • ATP
  • Phosphoric acid
Digestive enzymes in grasshopper and cockroach are secreted from
  • Foregut
  • Midgut
  • Hind gut
  • Hepatic caecae
A bone left in dilute HCl for about three days will______________
  • Crack into pieces
  • Become soft and elastic
  • Dissolve completely
  • Remain as it is
Which of the following cells in earthworm play a role similar to liver in vertebrates?
  • Amoebocytes
  • Mucocytes
  • Chloragogen cells
  • Epidermal cells
Which one of the following tissues gives rise to nervous system and is formed during gastrulation phase of embryonic development?
  • Archenteron
  • Blastopore
  • Ectoderm
  • Endoderm
  • Mesoderm
Match column I with column II and select the correct answer.
List IList II
ANissl's  granulesiAstrocytes
BTractiiCerebellum
CMuscle toneiiiArachnoid
DStar-shaped glial cellsivDura mater
EOutermost brain envelopvMitochondria
viCollection of nerve fibres
viiRepolarisation
viiiOligodendrocytes
ixCollection of cytons
xRibosomes
  • A-x, B-ix, C-ii, D-i, E-iv
  • A-v, B-vi, C-vii, D-viii, E-iii
  • A-x, B-vi, C-ii, D-i, E-iv
  • A-v, B-vi, C-ii, D-i, E-iv
  • A-x, B-v, C-iii, D-i, E-v
Which of the following muscles are striated and branched?
  • Skeletal muscles
  • Smooth muscles
  • Cardiac muscles
  • Both A and C
The above flow chart shows the three steps of glucose breakdown in different conditions. Which of the given steps is responsible for muscle cramps?
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  • Step I
  • Step II
  • Step III
  • Both (A) and (B)
Pigeon in the absence of down feathers will not be able to
  • Fly
  • Keep the body warm
  • Exhibit secondary sexual characters
  • Protect itself from ectoparasites
Which one of the following helps in keeping the body warm?
  • Sweat glands
  • Adipose tissue
  • Skin
  • Hair
In Pheretima, septa are absent between which segments?
  • $$3/4$$ and $$9/10$$
  • $$4/5$$ and $$8/9$$
  • $$5/6$$ and $$7/8$$
  • $$7/8$$ and $$6/7$$
An adult male is made up of ................ % of skeletal muscles.
  • 42
  • 27
  • 40
  • None of these
The female genital pore of Pheretima posthuma located upon the .......... segment.
  • $$14^{th}$$
  • $$16^{th}$$
  • $$18^{th}$$
  • $$15^{th}$$
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