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chap 7 cells
Stack #27479
| Question | Answer |
|---|---|
| cell | smallest unit that can carry on prcoesses of life |
| cell membrane | seperates cell from its external enviorment |
| cell wall | found in plant cell, made of cellulose |
| chloroplast | uses energy from sunlight to make energy rich food |
| chromosome | DNA, genetic information |
| cilia | short, hairlike, on the surface of cells |
| cytoplasm | jellylike material within the cell |
| cytoskeleton | framework of the cell |
| endoplasmic reticulum | folded sacs/tunnes that might be covered by ribosomes |
| Eukaryote | contains nucleus and membrane bound organelles |
| flagella | whips back and forth for locomotion |
| golgi apparatus | processes, packages, and secretes |
| leucoplast | stores starches, proteins, and lipids |
| lysosome | filled with enzymes used to break down food into particles that can be used |
| microfilament | protein threads, helps give cell shape |
| microtubule | supports cell, helps cells moce |
| mitochondria | uses energy from food to make high evergy compounds |
| nucleolus | ribosomes are made here |
| nucleus | directs cells |
| organelles | cell component that performs a function |
| plastid | stores food and pigment |
| prokaryote | lacks nuclei and membrane bound organelles |
| ribosome | where proteins are made |
| spindle fiber | aid in movement of chromosomes during division |
| vacuole | saclike structure that stores material |
| diffusion | the movement of particles from an area of high to low concentration |
| osmosis | the diffusion of water |
| isotonic solution | the solute concentration is equal inside and outside of the cell |
| plasmolysis | a plant cell looks wilted because of |
| hypertonic solution | the solute concentration is greater outside of the cell than inside |
| passive transport | the general movement of material without the use of energy |
| endocytosis | pinching of the cell membrane to allow large quantities to enter the cel |
| turgor pressure | occurs when a plant cell is places in a hypotonic envirorment |
| hypotonic solution | the solute concentration is less outside of the cell than inside |
| ATP | energy storage molecule of life |
| active transport | movement of material against a concentration gradient requiring energy |
| sodium potassium pump | an example of active transport using membrane proteins |
| exocytosis | pinching of the cell membrane to allow large quantities to exit the cell |
| homeostasis | steady state with the enviorment |
| pinocytosis | fluid movement using endocytosis or exocytosis |
| cytolysis | explosion of an animal cell |
| equilibrium | the movement of molecules across a membrane is equal in both directions |
| phagocytosis | large solid particle movement using endocyosis or exocytosis |
| semipermeable | allows some materials to pass through but not others |
| contractile vacoule | found in some single celled organisms as a mechanism for eliminating excess water from the cell |
| plasma membrane | phosphilipids bi layer with proteins floating like ice bergs |
| facilitated diffusion | movement of materials using carrier proteins without using energy |
| tissue | group of similar cells that perform a particular function |
| organ | groups of tissues that work together to perform a specific function |
Created by:
lisad6
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