Related Questions

Placental barrier
A Becomes a double layered membrane in late pregnancy
B Becomes thinner as villi lose their cellular and connective tissue surrounding the capillaries
C Is exclusively composed of maternal tissue
D Is composed of three layers in early stage
E Is a chorionic derivative
Following substances cross the placental barrier against concentration gradient
A Calcium
B Amino acid
C Iron
D Magnesium
E Fat soluble vitamin
The following drugs can cross the placental barrier
A Morphine
B Diazepam
C Warfarin
D Heparin
E Atracurium
Placental insufficiency is caused by all except _
A Smoking in pregnancy
B Dieting in pregnancy
C Post maturity
D Multiple pregnancy
Among placental hormones, protein hormones are
A Human chorionic gonadotrophin
B Pregnancy associated plasma protein
C Prolactin
D Oestrogen
E Progesterone
In a class composed of x girls and y boys what part of the class is composed of girls ?
A y / ( x + y )
B x / xy
C x / ( x + y)
D y / xy
In a class composed of x girls and y boys what part of the class is composed of girls.
A y / (x +y)
B x / xy
C x / ( x +y)
D y/ xy
দুটি এক-পরমাণুক আদর্শ গ্যাস পরস্পরের সাথে তাপীয় সাম্যাবস্থায় আছে। A গ্যাস m ভরের অণু দ্বারা গঠিত, এবং B গ্যাস 4m ভরের অণু দ্বারা গঠিত। A গ্যাসের আয়তন ৪ গ্যাসের আয়তনের দ্বিগুণ। এদের চাপের অনুপাত PA / PB কত? (Two monoatomic ideal gases are in thermal equilibrium with each other. Gas A is composed of molecules with mass m while gas B is composed of molecules with mass 4m. The volume of gas A is twice that of gas B. What it the ratio of their pressures PA / PB ?)
A 1/4
B 1/2
C 1
D 2
The natural barrier to free movement of goods and services are ---
A Import duty
B Export duty
C Exchange control
D Distance
The Great Barrier Reef is located in :
A Australia
B China
C Sri Lanka
D South Africa

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