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Cell Theory
| Question | Answer |
|---|---|
| Cells that lack a nucleus. | Prokaryote |
| Cells that contain a nucleus. | Eukaryote |
| Scientist that invented the first microscope. | Zacharias Janssen |
| Scientist that looked at cork under a microscope and coined the term "cell". | Robert Hooke |
| Scientist that determined all animals are made of cells. | Theodor Schwann |
| Scientist that determined all plants are made of cells. | Matthias Schleiden |
| Scientist that determined all cells came from pre-existing cells. | Robert Remak (Rudolf Virchow initial credit) |
| The biggest difference between prokaryotes and eukaryotes is the presence of a _____________. | nucleus |
| Eukaryotes are (larger OR smaller) than prokaryotes. | larger |
| Prokaryotes and eukaryotes both have a _______, _______, _______, and _______. | ribosomes, DNA, cytoplasm, cell membrane |
| The genetic material in a prokaryote. | nucleoid (also plasmids) |
| All ______________ have a cell wall, while only some ______________ have a cell wall. | prokaryotes, eukaryotes |
| Only eukaryotes contain specialized ______________ that have their own specific functions inside the cell. | organelles |
| Cell Theory #1: All living things are made of __________. | cells; |
| Cell Theory #2: Cells are the basic _____________ and ____________ units of life. | structural; functional |
| Cell Theory #3: All cells came from ___-___________ cells | pre-existing |
| Scientist that discovered "animalcules", protists, bacteria, and muscle fibers. | Anton van Leeuwenhoek |
| Which two domains represent prokaryotes? | Bacteria and Archaea |
| Which domain represents eukaryotes? | Eukarya |
| A polysaccharide coat that can protect prokaryotes. | capsule |
| Are prokaryotes unicellular or multicellular? | unicellular |
| Are eukaryotes unicellular or multicellular? | depends; most are multicellular, but some are unicellular |