Cell Structure

Chapter 3

	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 _____.