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The movement of substances across the cell membrane that requires the cell to use energy?
Wiki User
∙ 10y ago
It's called active transport. When talking about the cell, it is usually bigger substances that use passages in the cell membrane to access the inner part of the cell, and they need energy to get there. The opposite; passive transport or diffusion, is the movement of dissolved materials through a cell membrane without the use of cellular energy. THis happens with smaller substances.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoPassive transport does not require the cell's energy.
Wiki User
∙ 10y agoActive transport refers to the movement of materials through the cell membrane when energy is required.
Wiki User
∙ 10y agoactive transport
Wiki User
∙ 10y agoactive transport!
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What is the movement of chemical substances usually across the cell membrane againts a concentration gradient requires cells to energy?
active transport
What is the movement of materials across a membrane that requires energy input called?
Active transport requires energy and proteins to move the materials across the cell membrane. This is in contrast to osmosis, which doesn't require energy to move the material.
How does the cell membrane help cells maintain homeostasis?
one way cells maintain homeostasis is by controlling the movement of substances across their cell membrane.
What controls which substances can move in and out of a cell?
The cell membrane regulates the movement of substances in and out of the cell.How does it do this? The phospholipid bilayer is impermeable to most substances, allowing across only small, uncharged molecules such as those of oxygen, carbon dioxide, and water. The only way for other substances to cross the membrane is via transport proteins (channel and carrier proteins). These are selective, and therefore control what enters and what leaves the cell.
When an input of energy is required to move material through a cell membrane what transport takes place?
Active transport requires energy to move substances across a cell membrane against their gradient.
What membrane components allow movement of non-polar substances across membrane?
Integral proteins allow movement of non-polar substances across membranes.
What is the movement of chemical substances usually across the cell membrane againts a concentration gradient requires cells to energy?
active transport
What is the movement of materials across a membrane that requires energy input called?
Active transport requires energy and proteins to move the materials across the cell membrane. This is in contrast to osmosis, which doesn't require energy to move the material.
What motion of particles across a membrane requires energy?
Movement across a membrane that does require energy is called active transport.
One way cells maintain homeostasis is by controlling the movement of substances across the?
cell membrane
What is one way cells maintain homeostasis is by controlling the movement of substances across the cell?
membrane :]
What is the direction of movement of various substances across the cell membrane for the cell's life activities?
excretion, transport and respiration
How does the cell membrane help cells maintain homeostasis?
one way cells maintain homeostasis is by controlling the movement of substances across their cell membrane.
The movement of water across a membrane is trem?
The movement of water across a membrane is called osmosis.
Active transport requires what?
Energy-requiring process by which substances move across the plasma membrane against a concentration gradient.
How are the 3 passive transports different?
Simple diffusion - High concentration to low concentration, no energy required osmosis - Movement of water across a membrane, no energy required facilitated diffusion - Movement of substances, protein's are used to help move the substances across the membrane. There are very basic summaries of each.
Is it true that Movement of water across the plasma membrane depends on the relative concentration of solutes or dissolved substances?
Yes it is true.
