NEET Biology Human Reproduction Question Bank

done Placenta Total Questions - 25

• question_answer1)
  The villi which are formed by the allantochorion to form the intimate connection with uterine endometrium functions as
  A)
  Gaseous exchange organ only done clear
  B)
  Attachment arrangement only done clear
  C)
  Placental structure done clear
  D)
  None of the above done clear
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• question_answer2)
  The layer of uterus which becomes much eroded due to placental villi is known as [CPMT 1992]
  A)
  Endothelium done clear
  B)
  Endometrium done clear
  C)
  Endoderm done clear
  D)
  Trophoblast done clear
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• question_answer3)
  Placenta is present in [DPMT 1992]
  A)
  All mammals done clear
  B)
  Metatherians done clear
  C)
  Eutherians done clear
  D)
  Prototherians done clear
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• question_answer4)
  To ensure effectiveness of reproduction in mammals [CPMT 1975]
  A)
  Formation of yolk sac done clear
  B)
  Retention of yolk sac done clear
  C)
  Reduced number of egg done clear
  D)
  Formation of placenta done clear
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• question_answer5)
  The role of placenta is [BHU 1980; CPMT 1971, 81]
  A)
  To convey nerve impulses done clear
  B)
  To act as storage organ done clear
  C)
  To protect embryo from shocks done clear
  D)
  To provide nutrition for developing embryo done clear
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• question_answer6)
  Placenta produced which hormone [Haryana PMT 2005]
  A)
  ACTH done clear
  B)
  Progesterone done clear
  C)
  GH done clear
  D)
  Gastrin done clear
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• question_answer7)
  The eutherian placenta is derived from or In mammals placenta is formed by [DPMT 1982; BHU 1989; MP PMT 1996]
  A)
  Yolk sac done clear
  B)
  Amnion done clear
  C)
  Allantois done clear
  D)
  Chorion allantois done clear
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• question_answer8)
  Placenta is formed from
  A)
  Maternal part only done clear
  B)
  Embryonic part only done clear
  C)
  Maternal and foetal portions both done clear
  D)
  None of the above done clear
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• question_answer9)
  Zonary placenta is found in [BHU 1980]
  A)
  Carnivore mammals done clear
  B)
  Herbivore mammals done clear
  C)
  Both [a] and [b] done clear
  D)
  None of the above done clear
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• question_answer10)
  Placenta has an outer layer which is selectively permeable and hormone secreting which is known as [CPMT 1987]
  A)
  Trophoblast done clear
  B)
  Chorion done clear
  C)
  Amnion done clear
  D)
  Mesoderm done clear
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• question_answer11)
  In man developing embryo remains in [CPMT 1988]
  A)
  Vagina done clear
  B)
  Uterus done clear
  C)
  Fallopian tube done clear
  D)
  Ovaries done clear
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• question_answer12)
  Placenta is the region, where [AFMC 1983]
  A)
  Foetus is supplied by maternal blood done clear
  B)
  Embryo is attached to mother by umbilical cord done clear
  C)
  Foetus receives maternal blood and nutrition done clear
  D)
  Embryo is enclosed by membranes done clear
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• question_answer13)
  In which of the following the placenta forms an important structure in development [CPMT 1980]
  A)
  Amphibian done clear
  B)
  Reptiles done clear
  C)
  Birds done clear
  D)
  Mammals done clear
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• question_answer14)
  Which of the following substances can pass through the placenta from the mother into foetus
  A)
  Proteins done clear
  B)
  Viruses of small pox done clear
  C)
  WBCs done clear
  D)
  RBCs done clear
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• question_answer15)
  In a simplest type of placenta the foetal blood is separated from the maternal blood by six barriers. How many barriers are lost in human placenta
  A)
  One done clear
  B)
  Two done clear
  C)
  Three done clear
  D)
  Four done clear
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• question_answer16)
  The animals in which complete embryo develops in the mother's body through placenta are
  A)
  Oviparous done clear
  B)
  Viviparous done clear
  C)
  Ovo-viviparous done clear
  D)
  Herbivorous done clear
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• question_answer17)
  Blood flowing in umbilical cord is
  A)
  50% maternal and 50% foetal done clear
  B)
  100% foetal done clear
  C)
  100% maternal done clear
  D)
  75% maternal and 25% foetal done clear
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• question_answer18)
  Placenta acts like a
  A)
  Semipermeable membrane done clear
  B)
  Fully permeable membrane done clear
  C)
  Impermeable membrane done clear
  D)
  None of the above done clear
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• question_answer19)
  Which of the following structure is lacking from the placenta
  A)
  Arteries done clear
  B)
  Veins done clear
  C)
  Smooth muscles done clear
  D)
  Nerves done clear
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• question_answer20)
  Endometrium is found in [CPMT 1994]
  A)
  Placenta of mammals done clear
  B)
  Nipple of mammals done clear
  C)
  Uterus of mammals done clear
  D)
  None of these done clear
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• question_answer21)
  Which one of the following develops from the trophoblast
  A)
  Placenta done clear
  B)
  Allantois done clear
  C)
  Epidermis of the skin done clear
  D)
  Yolk sac done clear
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• question_answer22)
  The placenta of human beings belong to the category of [BHU 1982; AIIMS 1998; MP PMT 1994]
  A)
  Haemo-chorialis done clear
  B)
  Syndesmo-chorialis done clear
  C)
  Endothelio-chorialis done clear
  D)
  Epithelio-chorialis done clear
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• question_answer23)
  The type of placenta found in human beings is of type [MP PMT 2002]
  A)
  Diffuse done clear
  B)
  Zonary done clear
  C)
  Cotyledonary done clear
  D)
  Discoidal done clear
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• question_answer24)
  The extra structure that provides nutrition to the embryo is [BHU 2005]
  A)
  Umbilicus done clear
  B)
  Amnion done clear
  C)
  Chorion done clear
  D)
  Placenta done clear
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• question_answer25)
  Structure connecting the fetus to placenta is [Manipal 2005]
  A)
  Umbilical cord done clear
  B)
  Amnion done clear
  C)
  Yolk sac done clear
  D)
  Chorion done clear
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