| A | B |
|---|
| Diffusion goes from a _______ concentration to a _______ concentration. | High, Low |
| Osmosis is................ | Diffusion of water across a selectively permeable membrane. |
| When is it called an isotonic solution? | When the outside and the inside of the cell are the same. |
| When is it called a hypotonic solution? | When the outside of the cell is lower concentration than the inside. |
| When is it called a hypertonic solution? | When the outside of the cell is higher concentration than the inside. |
| What is passive transport? | When the cel uses no energy to move materials across the plasma membrane. |
| Facillitated diffusion is when......... | A carrier protien allows diffusion. |
| What is active transport? | When a cell uses energy to move materials across the plasma membrane. |
| Endocytosis is when....... | A cell surrounds material with its membrane and takes it in from the outside enviorment to form a vacoule. |
| Exocytosis is when........ | A cell releases a materialfrom the vacoule into the enviorment. |
| What is chromatin? | Long strands of DNA. |
| What are chromosomes? | When the chromatin is coiled up before cell division. |
| The cell cycle is......... | The sequence of growth and division. |
| What is interphase? | Longest period when the cell grows and performs its functions. The Chromatin replicates. |
| What is mitosis? | Period of nuclear division which leads to 2 daughter with identical coppies of DNA. |
| What is chromosomes? | Chromatin coiled up. |
| The Centromere is... | The point that holds the two sister chromatids together. |
| What is the first stage of mitosis? | Prophase. |
| The Centrioles... | Seperate and move from the nucleus to opposite poles and form spindle fibers. |
| What is the second stage of mitosis? | Metaphase |
| What happens in Metaphase? | Sister chromatids attach to the spindle fibers at their centromere and move to the equator and line up. |
| What is the third stage of mitosis? | Anaphase. |
| What happens in Anaphase? | The sister chromatids seperate and are pulled to opposite poles. |
| What is the final stage of mitosis? | Telophase. |
| What happens in Telophase? | New chromosomes at each pole are surrounded by a nuclear membrane. Cytokinesis happens and a plasma membrane forms along the equator. |
| What is cytokinesis? | When the Cytoplasm divides. |
| What is the result of mitosis? | Two new cells with chromosomes Identical to the parent cell. |
