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text 3
biology test
| Question | Answer |
|---|---|
| organisms whose cells lack nuclei | prokariotic |
| organisms whose cells conetain nuclei | ukariotic |
| facts about prokariotes | they grow and reproduce they have cell membrane and cytoplasm |
| specalized structures that carry out specific cell functions | organell |
| are all eukariotes large multicellular organisms | no |
| in what organisms are cell walls found | plant cell |
| t/f: the cell wall lies inside the cell membrane | false |
| what is the main function of cell wall | to procet the cell |
| what are cell walls mostly made of | cellulose |
| t/f: some cell structures are specific to either plant or animal cells | true |
| what is the main function of the nucleous | control center of the cell |
| what improtant molecules does the nucleous contain | the cells dna cromisomes |
| the granular material visible within the nucleous | cromatin |
| what does cromatin consist of | dna and cromisomes |
| what are cromisomes | strands of dna |
| most nucleicontain a small dence regin | nucleolus |
| what occurs in the nucleolus | mitosis |
| what is the nuclear envelope | the membrane for the cells nucleous |
| the supporting network of long thin fibers | cytoskeleton |
| thin threds | microflilaments |
| hollow tubes | microtbules |
| difference between rough er and smooth er | rough er has ribisomes on it |
| facts about lisisomes | they break down organellls that have outlives there usefullness they contain enzynes that breakdown lipids carbohydrates and protiens |
| small particle of rna and protiens that produces protien that produces protien following instructions from nucleus | ribisomes |
| an internal membrane system in which components of cell membrane and some protiens are constructed | endoplasmic reticleum |
| stack of membranes in which enzynes attach carbohydrates amd lipids to protiens | golgi body |