The permeability of the human placenta to mac | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The human placenta acts as a selective barrier,but it allows the passage of certain macromolecules from the maternal circulation to the fetal circ

Vedclass · Accepted Answer

Globulin

Vedclass · Answer

(A) The human placenta acts as a selective barrier,but it allows the passage of certain macromolecules from the maternal circulation to the fetal circulation.Specifically,$IgG$ antibodies (a type of globulin) are known to cross the placenta via receptor-mediated endocytosis.This passive immunity provides the fetus with protection against various pathogens.Therefore,the presence of maternal $IgG$ antibodies in fetal blood is direct evidence of the placenta's permeability to these specific macromolecules.

Column $I$	Column $II$
$(a)$ Third week	$(1)$ Development of pre-umbilical cord
$(b)$ Third month	$(2)$ Body develops but head remains big
$(c)$ Fourth week	$(3)$ Embryonic slit widens
$(d)$ Fourth month	$(4)$ Muscles activate

The permeability of the human placenta to macromolecules is evidenced by the presence of which of the following in fetal blood?

Similar Questions

In mammals,the relaxin hormone is secreted by:

Blood flowing in the umbilical cord of a mammalian embryo is:

How many of the following hormones are produced by the placenta?
Estrogen,Progesterone,Relaxin,$hCG$,$hPL$

What is seen in the zygote during embryogenesis?

Match the columns:

Column $I$ Column $II$

$(a)$ Third week $(1)$ Development of pre-umbilical cord

$(b)$ Third month $(2)$ Body develops but head remains big

$(c)$ Fourth week $(3)$ Embryonic slit widens

$(d)$ Fourth month $(4)$ Muscles activate

Vedclass Test Series

Exam Paper Generator

Online Exam Module