Cnidaria Flashcards

1
Q

Ctenophora are known for their
In sunlight

A

Beauty delicate nature
Comb plate gives the effect of rain bow

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2
Q

Sea gooseberries ( other name )
body structure

A

Sea walnuts comb-jellies
Spherical, cylindrical, pear shaped
Transparent jelly

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3
Q

Ctenophora are
Nutrition

A

Radial / bilateral symmetry
Tissue grade body organisation
Diploblastic
Carnivorous

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4
Q

Ctenophora locomotion
Location and how
Digestion

A

Body bear eight external row’s of ciliates comb plates
Exclusively marine and pelagic (float on sea surface)
Extra cellular intracellular

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5
Q

Ctenophore in place of chidoblasts

A

On tentacles ends lasso cells which help in catching prey

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6
Q

Ctenophore sexuality
Fertilization
Reproduction
Development
Larva

A

Bisexual
External
Only sexual
Indirect
Cy cipid

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7
Q

Ctenophora example

A

Pleurabrachia (tenoplana, Beroe

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8
Q

Platyhelminthes why flatworms
Endoparasite or ectoparasite exception

A

They have dorsoventrally flattened body
Endoparasite -not all are parasitic eg planaria( dogesia)

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9
Q

Platyhelmin
Germ layer
Coelom
Organisation

A

Triploblastic
Acoelomate
Organ level of organisation

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10
Q

Platyhel .
Adhesive. Organs
Locomotory organs
Skeletal system
Circulatory system
Digestive tract
absent in

A

Suckers hook present in parasitic form
Absent
Incomplete / absent tapeworm

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11
Q

Epidermis secretes (platyhelminthsis)
Function

A

Cuticle is present called tegument
Protects the parasite from digestive enzymes of host

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12
Q

Solenocytes
Function
Hydro skeleton ( platyhel)

A

Specialised cell called flame cells help in Osmo regulation and excretion
Turgidity of fluid in parenchymal meshes maintains the form of body

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13
Q

Play helmin this respiration
Anaerobic eg

A

Body surface
Internal parasite like Taenia

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14
Q

Nervous platyhel
Sexuality except
Reproductive system
Fertilization
Development

A

Nerve ring nerve cord peripheral nerves (ladder like)
Bisexual except schistosoma
Complex and well developed
Self or cross and internal
Larval stages

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15
Q

Taenia
Blood fluke

A

Tape worm
Schistosome

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16
Q

Liver fluke
Dugesia

A

Fasciola
Planaria

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17
Q

Larva of fasciola

A

MSRCM
Miracidium
Sporocyst
Redia
Cercaria
Meta cercaria

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18
Q

Aschelminthes why roundworms
Location

A

Body of Nema thehelminthes is circular in cross section and tapering at both ends with out segmentation
Free living aquatic terrestrial parasitic in plants and animals

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19
Q

Aschel
Symmetry
Germ layer
Level of organisation
Body wall consists of

A

Bilateral
Triploblastic
Organ system level
Cuticle epidermis (syncytial) muscle layer [only longitudinal)

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20
Q

Aschel body cavity is and contains
Alimentary canal differentiated

A

Pseudocoel not lined by mesoderm and contains pseudocoelomic fluid
Mouth well developed muscular pharynx, intestine and anus

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21
Q

Aschel skeleton
Respiration
Circulatory

A

Absent = hydro skeleton high fluid pressure in pseudocodom
Body surface by diffusion
Absent

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22
Q

Aschel nervous system
Excretory system

A

Nerve ring ( brain) and longitudinal nerve cord
H - shaped renter cell or protonephridia ( tube removes the waste )

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23
Q

A.sch.el.
Reproductive system.
Sexual it y
Development.

A

Well developed
Dioecious
Indirect direct

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24
Q

Aschel male

A

Smaller than female and curved - from its coudalend

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25
Q

Aschel
Male has what for copulation
Cloaca

A

Has penial spicules
genital tract joins digestive tract to form cloaca [absent in female)

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26
Q

Ascaris larva and found in
Ancylostoma:

A

Rhabditiform / rhabditoid in small intestine
Hookworm (IN small in testine)

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27
Q

Pinworm
Trichinae spiralis

A

Aschel
Enterobius - seat worm (in large intestine)
Viviparous endoparasite of small intestine

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28
Q

Filarial worm ( also known as)
Found in
Transferred by
Causes

A

Aschel
Wuchereia
In lymph vessels /gland.
Transferred by female culex mosquito
Viviparous
Causes elephantiases

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29
Q

Annelida found in

A

Aquatic (marine Nereis fresh water hirudinaria )
Terrestrial earthworm
Free living
Parasitic leech

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30
Q

Annelida
Symmetry
Germ layer
Level of organisation
Colem
Segments

A

Bilateral
Triploblastic
Organ system
Tube within tube
Coelomate
Metameric ( segments / metameres )

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31
Q

Cephalisation annelids

A

Anterior head like with sense organs

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32
Q

Locomotion
Nereis
Pherítima
Hiruda hirudenaria

A

Parapodia
Chitin’s setae earthworm
Muscular contraction

33
Q

Body wall of annelids consists
Coelom

A

Critic epidermis and muscle layer [both circular and longitudinal)
Eucoelomate schizocoelomate [schizocoel]

34
Q

Annelids are first

A

Protostomous eucolomate organisms
Digestive glands are developed
Heart appear first time in Annelida ( neurogenic)

35
Q

Annelid
Respiration
Circulatory system heart form
Blood colour (hb dissolved in )

A

Through skin(cutaneous respiration) , gills aquatic [branchial respi ]
Closed (some blood vessel → heart) heart tubular form
Red ( erythrocrounium) but haemoglobin dissolved in plasma

36
Q

Circulatory system exception Annelida
Excretory system,, also fn
Nervous system

A

Closed (Leech open circulatory system)
Nephridium osmoregulation
Paired ganglia connected by laterals nerves to a double ventral nerve chord

37
Q

Annelida
Reproduction eg
Sexuality
Development and larva

A

Sexual
Dioecius- Nereis monoecious - earthworms leeches
Direct or indirect with trochophora larva

38
Q

Sand worm
Hirudo
Aphrodite

A

Nereis
Leech
Sea mouse 🐁 🐀🐭

39
Q

Blood sucking leech
Pheretima

A

Hirudinaria
Earthworm 🪱

40
Q

Longest phylum ________ which includes _____ ( no )
Their location

A

Arthropoda, insects
Two third
Water land sea in plant animal

41
Q

Arthropoda
Symmetrical
Germ layer
Body organisation
Metamerism
Coelm

A

Bilateral
Triploblastic
Organ system level
Externally segmented body
Schizo coelom schizocoelomate

42
Q

Arthropoda
Character
Skeleton
Body divided

A

Jointed appendages
Chitinous exoskeleton
Head thorax and abdomen

43
Q

Arthropod
Cephalization
Sense organs
Digestive tract

A

High degree
Simple eyes, compound eyes l antennae, statocyst / balance organ
Complete

44
Q

Compound eye

A

Consists many smaller units called ommatidia
Forming no. Of images (mosaic image)

45
Q

Respiration arthropod
Gills
Tracheal system
Book-lungs
Book-gills
Who carry oxygen directly to cells

A

Prawn
Insects
Scorpion
King crabs
Tracheae

46
Q

Arthropod
Circulatory system
Blood colour insect
Prawn

A

Open type blood flows in haemocoel
Colourless haemolymph
Copper containing pigment haemocyanin

47
Q

Excretory organs
Eg crustaceans
Arachnids
Insects

A

Antennary or green glands opening directly to exterior
Coxal glands
Malpighian tubules opening into gut

48
Q

Arthropoda
Nervous system
Sexuality
Fertilization
Development

A

Nerve ring (brain) double , solid , midvental nerve cord bearing pair of ganglia
Separate
Internal external
Direct or indirect

49
Q

APIs
Bombyx
Laccifer

A

Economically important insects (arthopode)
Honey bee
Silk worm
Lac insect

50
Q

Anopheles
Culex
Aedes

A

Vectors arthropod
Female anopheles spread malaria
Female culex spread filariasis
Aedes (mosquitoes) spread dengue chkungunya

51
Q

Gregarious pest
Living fossil limulus

A

Locusta (locust)
King crab I horse shoe carb / limulus

52
Q

Arthropod others example
Peripatus

A

Butterfly scorpion Prawn Spider Cyclops Centipedes Millipedes Peripatus ( connecting link between Annelida and Arthropoda )

53
Q

Mollusca
Location
Germ layer
Organisation

A

Terrestrial.or aquatic.
Triploblastic
Organ system

54
Q

Mollusk symmetry exception reason
Unsegmented exception

A

Bilaterally (few are secondarily a symmetrical eg snail due to twisting [ torsion) during development)
Neopilina

55
Q

Mollusca body Covered by and unsegmented
Mantle/pallium
Mantle cavity

A

With calcareous shell and is unsegmented with distinct head, visceral hump ‘ muscular foot
Soft and spongy layer of skin over visceral hump
Space b/w hump and mantle feather like gills (ctenidia) ore present

56
Q

Mollusca
Respiratory lexeretary functions
Haemocoel
Digestive gland.

A

Mantle cavity gills (ctenidia)
Space b/w viscera contains bloods
Hepatopancreas

57
Q

Mollusca
Digestive tract
radula
Blood.

A

Complete
Mouth contains a file like rasping organ for feeding called radula
Copper containing blue respiratory pigment called haemo cyan in

58
Q

Mollusca excretory system
Nervous system

A

1 to 2 pair like kidneys which open into mantle cavity, kidney of molluscs are metanephridia / organs of bojanus
Keber’s organs are also found
Present

59
Q

Mollusca sense organs
Eyes
For maintaining equilibrium
Osphradia

A

Present over a stalk called ommatophore ( Gastropoda)
Statocyst / lithocyst = present in foot
Chemoreceptor / Olfactory for nature of water

60
Q

Mollusca
Sexuality
Fertilization
Development
Larva

A

Dioecious
External/internal
Mostly indirect
Trochophore
Ovi porous

61
Q

Mollusca
Apple snail
Pinctada
Tusk shell
Aplysia

A

Pila
Pearl oyster
Dentalium
Sea hare

62
Q

Mollusca
Sepia
Octopus 🐙
Loligo

A

Cuttlefish
Devil fish
Squid
Cephalopod Mollusca

63
Q

Mollusca
Chiton
Neopilina

A

Chaetopleura
Connecting link b/w Annelida and Mollusca

64
Q

Echinodermata
Endoskeleton
Skin
Location
Shape

A

Calcareous ossicles
Spines and pedicellaria ( helps to clean skin)
All are marine
Star like ,cylindrical ,melon like,disc like,flower like

65
Q

Echinoderm
Symmetry
Circulatory system
Heart

A

Adult = radially,larvae =bilaterally
Open type
Absent

66
Q

Distinctive features of echinoderms
Helps in
What prevents entry of water

A

Presence of water vascular system =Unique water filled ambulacral with tube feet is present
Locomotion capture and transport into ambularal system
Perforated plate madreporite

67
Q

Echinoderm
Digestive system except
Mouth
Excretory system
Nervous system

A

Complete (except brittle star )
Mouth = lower ventral Anus=dorsal upper
Absent diffuse out through body surface
Simple less developed nerve ring and radial nerves with sense organ no brain

68
Q

Echinoderm
Sexuality
Reproduction
Fertilization
Development
Larva

A

Separate sexes
Sexual
External
Indirect with freee swimming larva
Bipinnaria

69
Q

Resemble chordates

A

Echinoderm in early embryonic development due to deuterostomous and enterocoelomic conditions

70
Q

Echinoderm
Asterias
Sea urchin
Cucumaria

A

Star fish (autonomy )
Echinus
Sea cucumber

71
Q

Sea lily
Ophiura
Phylum

A

Antedon
Brittlestar
Echinoderm

72
Q

Evisceration
Eg

A

Echinoderm in angry or Frightened state vomits out viscera ( internal organs)
Eg holothuria

73
Q

Hemichordata
Lives in
Consits of
Respiration

A

Are fossorial (ives in burrow)
Of a small group of worm like marine animals
Takes place through gills [pharynges al gill slits)

74
Q

Hemichondata
Body like
Divided into
Blood
Heart

A

Worm like brittle and soft
1 Anterior proboscis
2 A collar
3 A long truck
Colourless with ameboid corpuscles
Dorsally

75
Q

Hemichordata
Notochord structure
Excretion

A

Found in buccal cavity
Called buccal diverticulum or stromochord [outgrowth of guts ]
By signal glomerulus (situated in proboscis known as proboscis gland)

76
Q

Hemichordata
Sexes
Fertilization
Development
Larva

A

Separate
External
Indirect
Tornaria

77
Q

Hemicharda
Tongue worm or acorn worm
Other eg

A

Balanoglossus
Saccoglossus

78
Q

Non chordates
Notochord
Nerve chord
Pharynx gill
Heart
Tail

A

Absent
Ventral: solid, double.
Absent
Dorsal ( if +nt)
Absent