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Carbon dioxide is a small nonpolar molecule which means that it can easily diffuse through the lipid bilayer of the cell membrane. Carbon dioxide moves from an area of high concentration to an area of low concentration. Diffusion is passive transport (no ATP required).
Water is a polar molecule but it is pretty small so it can still dissolve through the lipid bilayer into the cell. The movement of water from an area of lower solute concentration to an area of higher solute concentration across a semipermeable membrane is called osmosis. Aquaporins are small water channels embedded in the lipid bilayer. These protein water channels provide a hydrophilic (polar) tunnel through the lipid bilayer for the fast movement of water across the membrane.. Aquaporins are a form of facilitated diffusion (diffusion with "help"). Osmosis and facilitated diffusion are forms of passive transport.
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An animal cell that surrounded by fresh water will burst because osmosis causes?
water to move into the cell, causing the cell to swell and eventually burst due to the influx of water.
What happens when the concentration of dissolved substances is greater outside the cell than inside?
Water will move out of the cell in an attempt to equalize the concentration of dissolved substances, causing the cell to shrink or shrivel up. This process is known as crenation, and can have negative effects on the cell's functioning.
A substance that moves across a cell membrane without using the cell's energy tends to move?
from an area of low concentration to an area of high concentration (if it is water) the opposite if it is a solid
What direction does water move when cells are placed in hypertonic solution?
Water moves out of the cell in hypertonic solution.
During osmosis which direction does the water move into the cell out of the cell or does it move in and put equally?
During osmosis, water moves from an area of higher water concentration to an area of lower water concentration. Therefore, water will move into the cell if the cell has higher solute concentration compared to its surroundings, and out of the cell if the surroundings have higher solute concentration. Ultimately, water will move to equalize concentration on both sides of the cell membrane.
What jelly like substance allows movement in a plant or animal cell?
The jelly-like substance that allows movement in a plant or animal cell is called cytoplasm. It is a fluid consisting of water, enzymes, salts, and various organic molecules that fills the cell and enables organelles to move and interact within the cell.
What is the Jelly-like substance where other cell parts are located?
The jelly-like substance inside a cell where other cell parts are located is called cytoplasm. It provides structure and support to the cell and is the medium through which nutrients and molecules move around the cell.
How and when do cells let water in or out?
Cells let water in or out of there systems through a process called osmosis. Osmosis is the movement of water across a cell membrane from high concentration to low concentration. If there is a higher concentrations of solute ( a substance that isn't water ex. salt) in the cell, the water will move into the cell. The cell will eventually fill with water and burst If the is a higher concentration of water in the cell than in the enviroment, water will move out of the cell and the cell will eventually shrink and shrivel
What substance enters and leaves a plant cell through the process of osmosis?
Water enters and leaves a plant cell through the process of osmosis. When the concentration of water inside the cell is higher than outside, water will move into the cell, and when the concentration is higher outside, water will leave the cell.
What is the Name of the substance that amoeba releases in pond water?
The substance released by amoeba in pond water is called pseudopodia. These are temporary projections of the cell membrane that help the amoeba move and capture food.
An animal cell that surrounded by fresh water will burst because osmosis causes?
water to move into the cell, causing the cell to swell and eventually burst due to the influx of water.
How are hypertonic solution and hypotonic solution the same?
Hypertonic and hypotonic solutions both refer to the concentration of solutes compared to a cell. In a hypertonic solution, the concentration of solutes is higher outside the cell, causing water to move out of the cell. In a hypotonic solution, the concentration of solutes is lower outside the cell, causing water to move into the cell.
What occurs when the plasma membrane surrounds a large substance inside the cell and move it outside the cell?
exocytosis
What substance easily travel across the cell membrane glucose molecules water molecules or sodium?
Of the three, water will move easily. The others require help and therefore the use of energy.
What happens when the concentration of dissolved substances is greater outside the cell than inside?
Water will move out of the cell in an attempt to equalize the concentration of dissolved substances, causing the cell to shrink or shrivel up. This process is known as crenation, and can have negative effects on the cell's functioning.
A substance that moves across a cell membrane without using the cell's energy tends to move?
from an area of low concentration to an area of high concentration (if it is water) the opposite if it is a solid
What direction does water move when cells are placed in hypertonic solution?
Water moves out of the cell in hypertonic solution.
