Essay About High Concentrations And Dna-Chromosome

Biology, Basic Key Terms
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Biology Notes
Cell theory: All living things are composed of cells or cells products existing cells divide to produce new cells
Cell membrane: Isolate the inside of the cell from the outside environment
Organelles: Structures within in the cell, have specific functions
Nucleus: Contains DNA-chromosome and RNA which contain protein synthesis
Cytoplasm: All contents excluding the nucleus
Eukaryotic: Contains DNA and nucleus- includes plant and animal cells
Prokaryotic: DNA scattered, simple strucre no organelles
Movement of chemical in and out of the cell
A cell memebrane is semipermeable. Which allows certain
substances to pass through.
Passive transport: No energy
Materials travel from low to high concentrations
Active transport: requires energy
Transports material , high to low concentration
Exocytosis: Movement of material out of the cell
Endocytosis: Movement of material in to the cell
Phagocytosis: When a cell engulf a solid mass (eating)
Pinocytosis: When a cell engulfs liquid mass (drinking)
Diffusion:
Transport of solute from higher to lower concentration
Facilitated diffusion:
It requires protein carrier in form of energy in ATP across the cell membrane
Simple diffusion:
Transports from higher concentration to lower concentration without energy input
Osmosis:
Is diffusion of water across a selectively permeable membrane that allows free passage of water but no more than one solute
Plasmolysis: contraction of cytoplasm of a plant cell as a result of osmosis out of the cell
Note: Permeable: Allows fluids to flow in
Solute: Which has to be dissolved
Solvent: Already dissolved
Hyper tonic:  concentration of solute than cell, water diffused out and cell shrinks/contracts
Hypotonic:  concentration of solute than cell causing water to diffuse into the cell, expands, burst
Isotonic:  concentration of solute as the cell, so water diffuse evenly equilibrium
Exocytosis: Movement of material out of the cell
Endocytosis: movement of materials in to the cell
Phagocytosis: Is when a cell engulfs a solid mass (eating)
Pinocytosis: Is when a cell engulfs liquid mass (drinking)
How does diffusion work:
molecules dissolved in a solution due to kinetic energy
Higher to lower concentration is diffusion
Diffusion is one of the processes whereby materials are exchanged between a cell and environment
How osmosis works:
Water molecules across a membrane from an area of high water concentration to an area lower concentration
Non polar molecules will pass through membrane
Classification
Biodiversity: all thing things
Taxonomy: Naming living things
Living things are recognized by their feature and can be classified (or divided