0
What else can I help you with?
What way does blood normally pass across the placenta?
blood does not pass across the placenta
What happens to a baby's blood as it passes through a placenta?
diffuse across the placental membranes into the mothers bloos.
If a substance is able to diffuse across a membrane then the membrane is said to be what?
selectively permeable
What is the membrane said to be if a substance is able to diffuse across a membrane?
selectively permeable
If a substance is unable to diffuse across a membrane we say the membrane is?
osmotically active
What substance can be passed from the mother to the foetus?
Carbon dioxide and other such waste gases diffuse from the foetus and across the placenta into the mother's blood. Urea (excretory product) also diffuses into the mother's blood. (The substances in bold will answer question).
How plasma membrane diffuse across plasma membrane?
Ions can't diffuse across membranes, they must used channels to transport across
How do you use diffuse in sentence?
Oxygen molecules diffuse across the membrane.
What kinds of molecules freely diffuse across a semipermeable membrane?
Water molecules freely diffuse across a semipermeable membrane.
What is area of gas exchange in fetus?
this is the function of the placenta, the mothers blood flows through capillaries that run very close to capillaries filled with the fetus' blood and the gases diffuse across due to the higher oxygen affinity of fetal haemoglobin.
How do molecules diffuse across membranes?
the reach equilibrium
What substance in the dialysis tubing or jar did not diffuse across the dialysis bag membrane and why?
molecular weight higher than the pore size of the tubing or dialysis bag material doesnt go.
