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Which of the following required the most ATP to move the molecule across a plasma membrane?
Ion moving against a concentration gradient
What energy is required for passive transport?
By definition, passive transport on a cellular level requires no energy other than some sort of gradient, whether of the molecule in question, or another whose movement across the membrane can be linked to the one of interest.
How are proteins arranged in a plasma membrane and the part that they play in transporting substances into and out of cells?
Think of Active Transport!! Protein grabs molecule Protein rotates round Protein releases molecule Protein rotates round again But this requires energy, so alot of mitochondria are required, and also active transport goes against the concentration gradient.
What is diffusion and facilitated diffusion?
Facilitated diffusion is a process whereby a substance passes through a membrane with a aid of an intermediary or a facilitator. The facilitator is an integral membrane protein that spans the width of the membrane. The force that drives the molecule from one side of the membrane to the other is the force of diffusion. and Diffusion is the process of movement of a substance from the region of higher concentration to the region of lower concentration so as to spread uniformly. Difference : Facilitated diffusion is when polar or charged molecules cross the cell membrane through a trans membrane channel protein. Diffusion is when small, non-polar molecules cross the cell membrane directly through the lipid bilayer. they can do so as they are hydrophobic and hence can pass through the hydrophobic core of the lipid bilayer. crossing the lipid bilayer is difficult for charged/polar particles as they are hydrophilic and large (as they may have hydration shells due to their charged nature), hence they have to cross through transport proteins.
Why is the mitochondria the site of aerobic cellular respiration?
All the enzymes required for the aerobic respiration(respiration requiring oxygen) are present in mitochondria,thus it always takes place in mitochondria.However,anaerobic respiration takes place in the cytoplasm of cell because all the required enzymes are present in cytoplasm
Why isn't energy required for the passenger molecule to be carried across the cell membrane by the carrier molecule?
it is carring substances both into and out of the cells.
What required the use of energy to move a molecule across a cell membrane?
Active transport
What atmospheric molecule is required for the complete breakdown of glucose?
Oxygen is the atmospheric molecule required for the complete breakdown of glucose. This process, known as cellular respiration, occurs in the presence of oxygen to convert glucose into energy, carbon dioxide, and water.
Do cellular energy required for osmosis?
No, cellular energy is not directly required for osmosis. Osmosis is the movement of water molecules across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration, driven by the concentration gradient. However, cellular energy may be required for maintaining ion concentration imbalances that influence osmosis.
What molecule is required for animal cells to obtain the most energy possible from a molecule of glucose?
Oxygen is the molecule required for animal cells to obtain the most energy possible from a molecule of glucose through the process of cellular respiration. Oxygen is the final electron acceptor in the electron transport chain, which is essential for generating ATP, the cell's main energy source.
Which of the following required the most ATP to move the molecule across a plasma membrane?
Ion moving against a concentration gradient
Why does chemiososmosis require a membrane?
Chemiosmosis involves the movement of ions across a membrane to create an electrochemical gradient. This gradient is essential for the production of ATP through oxidative phosphorylation in cellular respiration. The membrane acts as a barrier that allows the separation of ions, leading to the generation of the gradient required for energy production.
What type of organic molecule is needed for active transport?
ATP (adenosine triphosphate) is the organic molecule needed for active transport. It provides the energy required to pump molecules against their concentration gradient across a cell membrane.
Why cellular multiprocessing is required?
Cellular multiprocessing is required because it enables computer to save much data and information.
What energy is required for passive transport?
By definition, passive transport on a cellular level requires no energy other than some sort of gradient, whether of the molecule in question, or another whose movement across the membrane can be linked to the one of interest.
Which requires the use of energy to move a molecule across a cell membrane?
No. Water molecules can osmotically cross the cell membrane because they are small enough that their polarity does not matter. Then there are porins. Channels across the cell membrane that water molecules use.
Why is oxygen necessry for cellular respiration?
Yes, Oxygen is required for cellular respiration.
