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Bio Chapter 4
Bio Review test 1
| Question | Answer |
|---|---|
| Characteristics of prokaryotes | Lack a membrane-bound nucleus; single, circular chromosome in the nucleoid region. Have one chromosome, semifluid cytoplasm, & thousands of ribosomes. Also have cell/plasma membrane some have flagella, some have fimriae. Lack organelles. |
| eukaryotes | True Nucleus, domain eukarya, divided into 4 kingdoms. |
| what is the structure in all cells? | ? |
| unique structure for eukaryotes? | has a nuclear envelope. |
| sturcture of prokaryote cells | Structurally, just like a humans. 46 chromosomes in each cell. |
| In the Domain Eukarya, divided into 4 kingdoms: | Protista, Fugi, Plant and Animal. All have a true nucleus as well as numerous organelles. |
| nucleous | Dark region within the nucleus where ribosomes are made. |
| Prokaryotic Cells | Litterally means "before nucleus" Smaller than eukaryotic cells. Of the 3 domains, two are composed of this type of cell. |