Answer:
1.The cell membranes main trait is its selective permeability, which means that it allows more substances to cross it easily, but not others. small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion but ions (charged molecules) and larger molecules typically cannot.
2. The structure is called a lipid bilayer because it is composed of two layers of fat cells organized in two sheets. the lipid bilayer is typically about five nanometers thick and surrounds all cells providing the cell membrane structure.
3. Osmosis.osmosis is the movement of water across a membrane from an area of low solute concentration to an area of high solute concentration.
4. Active transport. 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). it is the opposite of passive transport.
Explanation:
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Answer:
G1 is typically the longest phase of the cell cycle. This can be explained by the fact that G1 follows cell division in mitosis; G1 represents the first chance for new cells have to grow. Cells usually remain in G1 for about 10 hours of the 24 total hours of the cell cycle.
<span>All the different cells of your body usually live, grow and divide in harmony. ... Your body has many different signals that control how much, and how often your cells divide. If any of these signals are faulty or missing, the result can be cancer, where too many cells are produced. (got it from google)
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Explanation:
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I hope that you are asking for this , <span>6,100.
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