Table of Contents
- 1 What needs energy to move across the cell membrane?
- 2 Which type of molecule will require energy to cross the cell membrane?
- 3 Is energy needed for molecules to enter and exit the cell?
- 4 Does the movement of molecules require energy?
- 5 Is energy required for substances to pass into or out of the cell quizlet?
- 6 Which homeostatic process requires energy to move particles across the plasma membrane?
- 7 Is energy required to move oxygen molecules across the cell membrane?
- 8 Which is type of Transport requires energy to move substances across the cell membrane?
- 9 What makes a molecule move through the membrane?
- 10 How are nonpolar molecules transported in the cell?
What needs energy to move across the cell membrane?
Moving substances up their electrochemical gradients requires energy from the cell. Active transport uses energy stored in ATP to fuel the transport. Active transport of small molecular-size material uses integral proteins in the cell membrane to move the material—these proteins are analogous to pumps.
Which type of molecule will require energy to cross the cell membrane?
Which type of molecule will require some amount of energy to cross the cell membrane? Polar molecules are incompatible with the interior of the cell and require energy to cross the membrane.
What is the energy molecule that is used in active transport?
adenosine triphosphate (ATP)
Active transport powered by adenosine triphosphate (ATP) is known as primary active transport.
Is energy needed for molecules to enter and exit the cell?
Transport Across Membranes It controls everything that enters and leaves the cell. There are two basic ways that substances can cross the plasma membrane: passive transport, which requires no energy; and active transport, which requires energy.
Does the movement of molecules require energy?
Some molecules even need an input of energy to help get them across the cell membrane. The movement of molecules across a membrane without the input of energy is known as passive transport. When energy (ATP) is needed, the movement is known as active transport.
Where does the energy required for active transport come from?
glucose
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.
Is energy required for substances to pass into or out of the cell quizlet?
Substances do not require additional energy to move in and out of cells. d. Substances can only move across the cell membrane if they are water soluble. How does particle size affect a molecule’s transport across a cell membrane?
Which homeostatic process requires energy to move particles across the plasma membrane?
Active transport homeostatic process requires energy to move particles across the plasma membrane. Explanation: Active transport is generally related with collecting high absorptions of molecules that the cell needs, such as ions, glucose and amino acids.
What process requires energy to move molecules from areas of low to high concentration?
active transport
In active transport, the particles move across a cell membrane from a lower concentration to a higher concentration. Active transport is the energy-requiring process of pumping molecules and ions across membranes “uphill” – against a concentration gradient.
Is energy required to move oxygen molecules across the cell membrane?
The above transport is called Diffusion and it is defined as ‘the movement of molecules from an area of higher concentration to lower concentration. it is a natural phenomenon and does not require energy.
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
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
What makes a molecule move through the membrane?
“Simple diffusion.”. Simple diffusion is pretty much exactly what it sounds like – molecules move down their gradients through the membrane. Molecules that practice simple diffusion must be small and nonpolar*, in order to pass through the membrane.
How are nonpolar molecules transported in the cell?
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 Diffusion of water molecules through the cell membrane down (with) the concentration gradient