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Biology 105 review
| Question | Answer |
|---|---|
| a plant cell membrane pulls inwardly away from the cell wall | plasmolysis |
| engulfment of large substances into a cell by forming a vesicle | phagocytosis |
| the shriveling of an animal cell due to excessive water loss | crenation |
| a pair of sister chromatids bound together by a centromere bond | duplicated chromosomes |
| four main purposes of cell division | asexual reproduction, growoth and development, repair, reconstruction of lost cells |
| what takes place in the G2 period | mass production of cell structure |
| what are the four factors affecting diffusion rate | size, temperature, viscosity, concentration |
| the movement of solute particles from a region of high concentration to a reagion of low concentration | simple diffusion |
| comparison of solute concentration | tonicities |
| less solute | hypotonic |
| more solute | hypertonic |
| equal solute | isotonic |
| what are the two membrane transport mechaniams | active and passive |
| what surrounds the cytoplasm and regulates what enters and exits the cell | cell membrane |
| what processes dont not require ATP and includes osmosis, simple diffusion and facilitated diffusion | passive processes |
| what process requires ATP and includes exocytosis, endocytosis and active transport | active processes |
| what happens in telephase | nucleoli reappear and the mitotic spindles breakdown |
| what are the four phases of mitosis | prophases, metaphase, anaphase, telephase |
| what happens in the G1 phase | cell growth |
| when an animal cell is placed into a isotomic solution | flaccid |
| swollenness of a plant cell (normal state) | turgid |
| the bursting of an animla cell due to excessive H20 gain | lysis |
| movement of substances out of a cell by using vesicles | exocytosis |
| the movement of water across a membrane from a region of low solute concentration to region of high concentration | osmosis |
| intake of specfic solutions into cell by then inreceptors | receptor |
| the movement of a substance across a biological membrane against the concentration gradient, aided by specfic transport | active transport |
| the movement of large solute particles from a region of high concentration to a region of low concentration through an intergal protein | facilitated diffusion |
| movement of substances into a cell by using vesicles | endocytosis |
| what takes place in the S period | cromosome duplication and synthesis of DNA |
| division of a cell by separating cytoplasm | cytokinesis |
| the lining up of the duplicated chromosomes along the middle of the cell | metaphase |
| the pulling apart or separation of duplicated chromosomes into chromatids | anaphase |
| the peroid wherre nucleolous disappears and mitotic spindles are formed | prophase |
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