Table of Contents
- 1 What is the process of using energy to move materials through a membrane?
- 2 What requires the use of energy to pass through a membrane?
- 3 Which homeostatic process requires energy to move particles across the plasma membrane?
- 4 Which process requires the energy provided by ATP?
- 5 Which motion of particles across the membrane requires energy?
- 6 Which is type of Transport requires energy to move substances across the cell membrane?
- 7 Which is a property of the cell membrane?
What is the process of using energy to move materials through a membrane?
To move substances against a concentration or electrochemical gradient, the cell must utilize energy in the form of ATP during active transport. Primary active transport, which is directly dependent on ATP, moves ions across a membrane and creates a difference in charge across that membrane.
What is it called when energy is required to move materials through a cell membrane?
active transport. When an input of energy is required to move materials through a cell membrane.
What requires the use of energy to pass through a membrane?
Active transport mechanisms require the use of the cell’s energy, usually in the form of adenosine triphosphate (ATP). Some active transport mechanisms move small-molecular weight material, such as ions, through the membrane.
How is energy needed to transport materials across the cell membrane?
Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the right concentrations of ions and molecules in living cells. Primary active transport directly uses a source of chemical energy (e.g., ATP) to move molecules across a membrane against their gradient.
Which homeostatic process requires energy to move particles across the plasma membrane?
Active transport
Active transport is the energy-requiring process of pumping molecules and ions across membranes against a concentration gradient. Active transport processes help maintain homeostasis.
What process provides the energy required to transport substances against a concentration gradient?
Active transport is a process that is required to move molecules against a concentration gradient. The process requires energy. Energy for the process is acquired from the breakdown of glucose using oxygen in aerobic respiration. ATP is produced during respiration and releases the energy for active transport.
Which process requires the energy provided by ATP?
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP).
Which of the following transport processes requires cell energy?
In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.
Which motion of particles across the membrane requires energy?
active transport
– Passive transport (including diffusion and osmosis) is the movement of materials across the cell membrane without cellular energy. – The movement of materials against a concentration differences is known as active transport. Active transport requires energy.
Which process requires energy and is necessary for maintaining homeostasis?
Active transport requires energy from the cell. It occurs when substances move from areas of lower to higher concentration or when very large molecules are transported. Cell transport helps cells maintain homeostasis by keeping conditions within normal ranges inside all of an organism’s cells.
Which is type of Transport requires energy to move substances across the cell membrane?
Which type of transport requires energy to move substances across the cell membrane? active transport Nonpolar molecules (ex: CO2 & O2) move across the lipid bilayer down the concentration gradient diffusion Large molecules such as glucose move down the concentration gradient with the help of proteins facilitated diffusion
How do materials move through the cell membrane?
Diffusion is passive. This means the cell need not expend energy, the material simply moves from an area of higher concentration to areas of lower concentration. (For example, cook bacon in the kitchen and the smell fills the entire house.) Oxygen and carbon dioxide diffuse across the phospholipid bilayer.
Which is a property of the cell membrane?
Property of the cell membrane alllowing some materials to pass through while keeping others out selective permeability Which type of transport requires energy to move substances across the cell membrane? active transport Nonpolar molecules (ex: CO2 & O2) move across the lipid bilayer down the concentration gradient diffusion
Where does the energy for active transport come from?
Because this movement is happening against the concentration gradient, the cell must expend energy that is usually derived from a substance called adenosine triphosphate, or ATP (see Chapter 4). An example of active transport occurs in human nerve cells.