0
Why might material need energy to move through the cell membrane?
Wiki User
∙ 12y ago
The materials don't need energy its the cell that needs energy to pick up the material. The process in which a cell gathers materials while using its energy is call Active Transport. There are several ways in which the cell can pick up materials. It can wrap its membrane around it and form a vacuole or storage space for it. Or it can send some of its proteins to go and get it. There are also many more ways but those were just a few. To do these things cost the cell energy.
There is a way although, for the cell to gather materials without using its energy. This is called Passive Transport. This can occur when there is a high concentration of water molecules outside of the cell, and a low concentration inside. The water naturally moves into the low concentrated area and it brings the dissolved materials with it.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoits caz the cell membrane is made of lipids and lipid is fat so its harder to get through .
Add your answer:
Earn +20 pts
What do you think might be the advantage of applying systems thinking when analyzing an ecosystem?
This allowed them to study the flow of energy and material through ecological systems
Why can there be more sugar in a cell than outside a cell?
The cell membrane might be more permeable or the cell might just be going through phagocytosis.
Polysaccharides cross the plasma membrane through diffusion?
Yes, carbohydrates can diffuse through a plasma membrane. Proteins can also pass through the fluid membrane, as well as a few other things.
How do you explain the entrance and exit of materials in a cell?
Materials can enter and exit cells in multiple ways. There is the process of osmosis, where water particles move through the partially permeable membrane in the cell wall to a higher concentration gradient - this does not require energy. There is also diffusion, where particles small enough to fit through the partially permeable membrane move down a concentration gradient - this also does not require energy. And then there is active transport, where the cell wall can actually move particles into the concentration gradient they would not naturally move to, and this does require energy. Hope I helped :)
What kind of energy is light energy?
Well, you might just put it in a separate category, and call it "light energy". But it is probably better to place it in the broader category of "electromagnetic waves".
What do you think might be the advantage of applying systems thinking when analyzing an ecosystem?
This allowed them to study the flow of energy and material through ecological systems
How do molecules that are too large to cross the membrance enter into the cell?
If the large molecule won't pass through the membrane by diffusion, it might be dragged through the membrane by "endocytosis".
Does Prokaryotics cells contain a nucleus?
No. Prokaryotes do not have a nucleus. they might have nuclear material but it's not membrane in closed so it is not regarded as a nucleus.
What is a material which allows electrons to flow through it under certain conditions?
This might be a fundamental description of a semiconductor material.
Is everything made of matter and energy?
Our hopes and dreams are not material and so they are not made of matter. They might be made of energy but that would be hard to prove.
Why can there be more sugar in a cell than outside a cell?
The cell membrane might be more permeable or the cell might just be going through phagocytosis.
Polysaccharides cross the plasma membrane through diffusion?
Yes, carbohydrates can diffuse through a plasma membrane. Proteins can also pass through the fluid membrane, as well as a few other things.
Why dont most foods and bacteria pass through the cell membrane?
Some might be too big or shaped differently
Do girls wear undershirts and bras?
Not usually. They might if their shirt was very thin or see-through material.
Do bats have wing membrane?
they might have it
Is it possible to manipulate raw energy through electromagnets?
I'm trying to imagine what raw energy might be. What you suggest does not sound feasible
What might you do with a needle while you are sewing?
The needle is used to pull a thread through a fabric or material of some kind.
