| A | B |
|---|
| compound light microscope | one lens, magnify 1,000 times, alive cells |
| Electron microscope | uses a beam of electrons, magnifys 1,000,000, dead cells |
| cell membrane | seperates and protects cells form surroundings |
| cell wall | outside the cell membrane |
| passive transport | substances cross the cell membrane w/o the cell expanding energy |
| Diffusion | the process by which substances spread through a liquid surface |
| facilitated diffusion | helped diffuse by protein |
| osmosis | diffusion of water through a selective permeable membrane |
| active transport | movement of substances against a concentration difference |
| eukaryotes | cells that contain nuclei |
| Most all DNA is contained in..... | nucleus |
| chromatin | formed by DNA and protein |
| chromosone | condensed chromatin |
| Ribosomes are assembled in .... | nucleus |
| nuclear envelope | contains pores that allow material to move in and out of the nucleus |
| cytoplasm | cell fluid, complex, |
| organelles | small structure that performs a specialized function w/ in a cell |
| ribosomes | particles made of RNA and protein |
| Golgi Apparatus | where enzymes attach carbs and lipids |
| ER | ribosomes pass through |
| lysosomes | sac-like, breakdown substances |
| cytoskeleton | supporting framework |
| Microtubules | hollow tubes of protein |
| cilia and flagella | propel cell from one location to the next |
| vacuoles | stores proteins, fats, and carbs |
| mitochondrion | organelle taht produces energy from a chemical fuel |
| chloroplast | organelle taht harvests the energy of sunlight |
| cell division | process when 2 independant cells divide |
| interphase | phase where chromatins unfold |
| prophase | appearence of chromosones, spindle forms, centrioles start to move to opposite side, |
| Chromatids | 2 identical chromosone strands |
| centromere | where chromatids attach |
| centrioles | organize microtubules |
| spindle | cluster of microtubules |
| metaphase | shortest phase,chromosomes line up on spindle, |
| anapahase | duplicated chromosones seperate form each other, |
| telophase | microtublues of the spindle begin to break |
| cytokinesis | phase when cytoplasm divides |
| RNA | carries genetic information in certain viruses |
| atom | smallest chemical element |
| chemical compound | bonding of atoms in definite proportions |
| ionic bond | attractions beyween oppositely charged ions |
| covalent bonds | electrons are shared between atoms |
| organic compunds | contain 2 carbon atoms |
| nucleic acids | DNA & RNA molecules |
| catalyst | speeds up chemical reaction |
