Chapter 3
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| Which scientist determined that cells come only from other cells? | ||
| The surface-area-to-valume ratio of a small cell is ? | ||
| In the metric system, a micrometer (um) is equal to 0.000001 (one millionth) of a ____? | ||
| A protein on the cell membrane that recognizes and binds to specific substances is called a(n) ___? | ||
| As a cell becomes smaller, its surface-area-to volume ratio ___? | ||
| Which of the following instruments produces highly magnified three-dimensional images of a cell's surface? | ||
| In a eukaryotic cell, mitochondria _____? | ||
| A cell's boundary is called the _______ ___________? | ||
| In a bacterium, the _____ ______ provides structure and support. | ||
| _________ __________ in the cell membrane aid the movement of substances into and out of a cell. | ||
| In plant cels, rigidity is provided by a large, membrane-bound sac called the ___ _____. | ||
| ______ ______ allow certain substances to pass into and out of the nucleus of a cell. | ||
| ______ are vesicles that contain a cell's digestive enzymes. | ||
| The "head: of a phospholipid is _______, so it is attracted to water, while the "tails" are ________, so they are repelled by water. | ||
| If a compound microscope has a 50x objective lens and a 10x ocular lens, a viewed image appears _____ times larger than its actual size. | ||
| All cells have a _____, _____, _____, _____. | ||
| Prokayrytic cells _____ and _____. | ||
| Prokaryotes have _____, _____. | ||
| Prokaryotes have single loop of _____. | ||
| Prokaryotes contain _____. | ||
| Some Prokaryotes have _____. | ||
| Some prokaryotes have _____. | ||
| Some prokaryotes have _____. | ||
| Eukaryotes | ||
| the phosphate head is attracted to water and is called _____. | ||
| The lipid tails are repelled by water and are termed _____. |
