CBSE Questions for Class 12 Medical Biology Human Health And Disease Quiz 9 - MCQExams.com

Athlete's foot disease in humans is caused by :
  • Bacterium
  • Virus
  • Fungus
  • Worm
Which is not included under schizocoelomata
  • Annelida
  • Arthropoda
  • Nematoda
  • Mollusca
Thigmotaxis does not occur in
  • Hydra
  • Amoeba
  • Paramecium
  • Ascaris
Which of the following worm is dioecious?
  • Taenia
  • Fasciola
  • Ascaris
  • None of the above
Ascaris (roundworm) is:
  • Diploblastic
  • Triploblastic
  • Monoblastic
  • Ablastic
The scientific name of guinea Worm is
  • Drancunculus medinensis
  • Brugia malayi and B. timori
  • Trichinella spiralis
  • Oxyuris vermicularis
Whipworm infection is more common in which of the following groups?
  • All age groups in cold countries
  • Children of cold countries
  • Children of warm countries
  • All age groups in warm countries
Which of the following is a disease caused by helminth parasite?
  • Diphtheria
  • Filaria
  • Malaria
  • Fluorosis
Whipworm is referred as
  • Ancylostoma
  • Trichuris
  • Enterobius
  • Trichinella
Which of the following is true regarding anus and genital pore in a male Ascaris?
  • Both open into cloaca
  • Both lie side by side
  • Both lie at opposite ends
  • Both are absent
Whipworm feeds on
  • Semidigested food
  • Undigested food
  • Blood meal
  • Digested food
Which of the following is/are the symptoms of Trichuris?
  • Anaemia
  • Dysentery
  • Abdominal pain
  • All of the above
Trichuris trichiura resides in
  • Duodenum
  • Jejunum
  • Ileum
  • Caecum and colon
Whipworm is named so because it's
  • Anterior two-third is slender
  • Posterior two-third is slender
  • Anterior one third is slender
  • Posterior one third is slender
Which of the following is caused by female guinea worm to release larvae?
  • Descends to urinary bladder
  • Descends to anal chamber
  • Forms blisters in respiratory tract
  • Produces skin blisters
Seatworm Enterobius is characterised by presence of
  • Buccal capsule
  • Copulatory bursa
  • Cephalic alae
  • Straight tail in male
Size of Enterobius(Oxyuris) vermicularis is
  • $$2-3$$mm in male and $$5-8$$mm in female
  • $$3-5$$mm in male and $$8-13$$mm in female
  • $$5-8$$mm in male and $$12-17$$mm in female
  • $$8-10$$mm in male and $$15-20$$mm in female
Female Dracunculus is
  • Viviparous
  • Ovoviviparous
  • Oviparous
  • Both A and B
Primary host of Guinea Worm is?
  • Cyclops
  • Man
  • Fish
  • Antelope
Filarial worm is
  • Oviparous
  • Ovoviviparous
  • Viviparous
  • Parthenogenetic
Which is the following is known as old world hookworm?
  • Necator americanus
  • Ancylostoma duodenale
  • Ancylostoma caninus
  • Strongyloides stercoralis
Trichina worm occurs in
  • Man
  • Domestic animals
  • Rodents
  • All of the above
Intermediate host of guinea worm is
  • Fish
  • Snail
  • Cyclops
  • Housefly
Female Dracunculus possesses
  • No uterus
  • Single uterus
  • Double uterus
  • A functional vulva
Hookworm resides in host's
  • Duodenum
  • Rectum
  • Small intestine
  • Blood
Size of hookworm is
  • $$8-11$$mm in male and $$10-13$$mm in female
  • $$11-15$$mm in male and $$13-20$$mm in female
  • $$15-20$$mm in male and $$20-30$$mm in female
  • $$20-25$$mm in male and $$30-40$$mm in female
A single hookworm sucks ............. ml of blood.
  • 0.1 ml
  • 0.5 ml
  • 0.8 ml
  • 1.2 ml
Hookworm holds the intestinal wall by means of
  • Cutting plates
  • Lancets
  • Sucking action of pharynx
  • Surface spicules
Hookworm is known so because it has
  • Buccal capsule
  • Lancets and cutting plates
  • Curvature in anterior region
  • Curvature in posterior region in both the sexes
Hookworm feeds on
  • Semidigested food
  • Undigested food
  • Digested food
  • Mucous membrane and blood
Hookworm causes
  • Anaemia
  • Anal itching
  • Genital itching
  • All of the above
Ground itch is due to larvae of
  • Ancylostoma
  • Enterobius
  • Trichuris
  • All of the above
Infective larva of Ancylostoma is called
  • Rhabditiform
  • Second stage juvenile
  • Embryonated larva
  • Filariform larva
Hatching of Ancylostoma occurs in
  • Water
  • Moist soil
  • Inside human body
  • Secondary host
Female Ascaris is differentiated from male by having
  • Cloaca
  • Penial setae
  • Shorter size
  • Straight posterior end
Ascaris has ........... number of lips.
  • Four
  • Three
  • Two
  • One
In male Ascaris, anus is
  • Absent
  • Replaced by gonopore
  • Replaced by cloaca
  • None of the above
.......... is called common roundworm.
  • Intestinal Roundworm
  • Gaint Intestinal Roundworm
  • Threadworm
  • Old World Roundworm
Give the correct matching of causative agent$$/$$ germ and disease.
  • Anopheles-Malaria
  • Leishmania-Sleeping Sickness
  • Glossina-Kala-azar
  • Wuchereria-Filariasis
Which of the following is the location of anus in Ascaris ?
  • Tip of the tail
  • Infront of the posterior end
  • Just near the excretory pore
  • In the middle of body
Ascaris$$/$$Nemathelminthes possesses body cavity called:
  • Coelom
  • Pseudocoelom
  • Haemocoel
  • Coelenteron
Lips of Ascaris are
  • Smooth
  • Rough
  • Denticulate
  • Spiny
Size of common roundworm or Ascaris lumbricoides is?
  • 15-30 cm in male and $$20-40$$cm in female
  • $$10-15$$cm in male and $$15-25$$cm in female
  • $$5-10$$cm in male and $$10-15$$cm in female
  • $$3-5$$cm in male and $$7-10$$cm in female
Taste receptors of Ascaris are
  • Phasmids
  • Amphids
  • Labial papillae
  • Both B and C
The males can be differentiated from the females in:
  • Ascaris
  • Amoeba
  • Sponges
  • All of the above
Filariasis is caused by.
  • Wuchereria
  • Culex
  • Trichinella
  • Schistosoma
Sensory structures$$/$$chemoreceptors located in the anterior part of Ascaris are
  • Amphids
  • Copulatory bursa
  • Pineal setae
  • Pineal spicules
Which is secondary intermediate host of hookworm/Ascaris?
  • Bed Bug
  • Sandfly
  • Mosquito
  • None of the above
Pseudocoel occurs in
  • Hydra
  • Ascaris
  • Cockroach
  • Earthworm
Wuchereria causes a disease in parts of India.
  • Filariasis-South India
  • Elephantiasis-Bihar
  • Elephantiasis-U.P.
  • None of the above
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