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Active Transport. transport that requires a cell to expend its own energy to pump a molecule across the membrane. Movement of molecules from areas of low concentration to areas of high transportation. Endocytosis.
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Active Transport • transport that requires a cell to expend its own energy to pump a molecule across the membrane. Movement of molecules from areas of low concentration to areas of high transportation
Endocytosis • transport that occurs when the cell membrane encloses around the particle forming a pouch, the pouch is then draw into the cell, requires energy on behalf of the cell
Exocytosis • transport that occurs when the cell memberane forms an internal pouch of large/multiple molecules and then releases them outside of the cell, requires energy on behalf of the cell
Facilitated Diffusion • the transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins
Hypertonic Solution • a situation that describes a solution when the concentration of solutes in solution is higher than inside the cell <OR> a term to describe a cell or solution that GAINS water
Isotonic Solution • an adjective that describes a solution when the concentration of solutes in solution is the same as inside the cell <OR> a term to describe when a cell is equal to its surrounding solution regarding water concentration
Osmosis • the diffusion of water (from a high conc. To a low conc.) across a cell membrane (selectively permeable membrane)
Hypotonic Solution • a situation that describes a solution when the concentration of solutes in solution is lower than inside the cell <OR> a term to describe a cell or solution that LOSES water
Passive Transport • transport that does not require the cell's chemical energy to move molecules across the membrane
Anaphase • Third phase of mitosis in which sister chromatids are pulled to opposite sides of the cell
Solute • substance that dissolves in the solvent Ex:salt, Kool aid
Solution • a homogeneous mixture of solute(s) and solvent(s)
Cell Cycle • The stages that take place between the time a eukaryotic cell divides and the time the daughter cells divide. (stages of growth, preparation, and division (Interphase and Mitosis)
Mitosis • 1 diploid parent cell splits into 2 identical diploid daughter cells.
Prophase • Nucleolus has disappeared, and duplicated chromosomes are visible. Centrosomes begin moving apart, and spindle is in process of forming.
Metaphase • Second phase of mitosis, during which the chromosomes line up across the center of the cell
Telophase • The fourth and final stage of mitosis, in which nuclei are forming and cytokinesis has typically begun.
Chromosomes • DNA that is coiled together and condensed into small packages (like DNA suitcases)
Homeostasis • the ability of an organism to self-adjust to maintain a balance of life functions in a changing environment
Diffusion • the process by which molecules of a substance move from an area of high concentration of that substance to areas of lower concentration until they are evenly distributed about the container
Karyotype • Is the number and appearance of chromosomes in the nucleus of a eukaryotic cell. The term is also used for the complete set of chromosomes in a species, or an individual organism
