0
What is the barrier around the that lets substances move across it?
Wiki User
∙ 9y ago
cell surface membrane
Anonymous
Add your answer:
Earn +20 pts
What lets substances in and out the cell?
H hehe
Why is the cell membrane described as being a selective barrier?
Cell membranes are selective barriers because they only let certain substances pass through and therefore ensures the cells survival.
what two substances enter and leave the leaf in photosynthesis?
The leaf first takes in Carbon Dioxide, or CO2, into it's self through the bottom of the leaf. It uses the CO2 and makes sugars out of it, water, and sunlight. This reaction makes a byproduct, Oxygen, that the leaf lets out, which we use to breathe.
What is semi permeable membrane mean?
allowing some substance to pass into the cell and blocking others
Lets have a convostion?
hello
What is the difference between semi-permeable and impermeable?
semi permeable lets some substances through and impermeable lets no substances through
What is found around the cell and lets materials in and out of the cell?
A cell membrane surrounds all cells and controls the movement of substances.
What lets substances in and out the cell?
H hehe
What is a description of the cell membrane?
The cell membrane lets substances in and out of the cell.
What process lets substances spread through a gas or liquid?
diffusion
What does permrable mean?
The membrane only lets certain substances pass through.
Is the absence of cell wall in animal cell necessary?
The cell wall is essential part of animal cells.it creates a barrier so that the cytoplasm remains in the cell and lets only the useful substances inside the cell i.e. it is semi permeable.without the cell wall the cell material would disperse and harmful substances would enter it and it will die. The presence of cell wall in animal cells is necessary,not the absence.
What lets substances like food and oxygen diffuse into body cells?
The semi-permeable membrane in cells. Allows some substances to go through and not others.
In the plant cell What cell lets substances in and out?
A plant cell has a cell membrane which controls the movement of substances in and out of the cell. :D
What controles the movement in and out of the cell?
Inside of a cell it is the cell membrane which lets substances pass into the cell, and out. The cell wall is used to keep the shape of the cell the same.
What does semi permeable membrane do?
I semi-permeable membrane is a membrane when only certain substances can pass through it.it is a membrane that will only allow certain molecules through it . in general oxygen , food and water are allowed to enter ; waste products are allowed to exit and harmful substances are kept out. hope this helps.
What is the term selectively permeable?
This term describes an object to be selective on which material it lets pass through it or go into it. The term usually refers to the cell membrane, because it only lets certain substances through.
