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What cell part allows only certain substances to difuse into and out of the cell?
The cell's membrane allows only certain substances to diffuse in and out of the cell.
Which part allows or prevents substances to go into and out of the cell?
The cell membrane acts as the barrier and transport proteins present in the membrane, such as globular proteins, transport molecules across cell membranes.
Which process allows ions to move across a semipermeable membrane where the concentration of ions is low to where their concentration is even higher?
Active transport BIOLOGY APEX
Why can't humans lay eggs?
Humans are placental mammals, meaning that they develop with the embryo attached to a placenta that allows it to exchange waste and nutrients with the mother. The placenta would not be able to function inside an egg.
Does a permeable membrane will let substances pass through it?
Yes it does permeable membranes are membranes that allows all substances to pass through.
Which organ allows an exchange of substances between mother and fetus and is only present during gestation?
placenta
Which organs allows an exchange of substances between mother and fetus and is only present during gestation?
placenta
How do substances move across a membrane?
The membrane allows it and cytoplasm also helps it.
What is a placenta where is it and what is used for?
The placenta grows inside the uterus of a pregnant mother during growth of the unborn fetus. The placenta allows nutrients, wastes, oxygen, carbon dioxide, fluids, hormones, and other substances to pass between the host (pregnant mother) and the fetus without letting their blood streams co-mingle. The placenta is expelled as part of the birthing process, and is commonly called the afterbirth. Follow the Related Link below to view a Wikipedia article on this subject.
What is The process of substances leaving a cell called?
The process of substances leaving a cell is called diffusion. The cell membrane is a selective permeable membrane that only allows certain materials to enter or leave the cell.
What is the name of the membrane that allows the movement of water and substances to move through the process of active transport and passive transport?
The name of the membrane that allows movement of water and substances through the process of active and passive transport is semipermeable membrane.
Are the lungs and the placenta the same?
No. The lungs allow you to breath, while the placenta connects a fetus to the mother and allows materials to be exchanged between them
What does the placenta do for the reproductive?
The placenta connects a developing fetus to the wall of the uterus, which allows gas exchange, nutrient absorption, and waste elimination
What is the Organ that allows nutrients to pass between mother and embryo?
Placenta
What does it mean to say most biological membranes are selectively permeable?
Selectively permeability is a property of biological membranes that allows them to regulate the passage of substances across them. In spite of heavy traffic through them, cell membranes are selectively permeable, and substances do not cross the barrier indiscriminately.
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.
What takes materials in and out of a cell?
The plasma member is a selectively permeable membrane which allows the entry and exit of substances in and out of the cell through the process of diffusion.
