Siteadmin, Check users, nsTeam1RO, nsTeam1RW, nsTeam1_talkRO, nsTeam1_talkRW, oversight, Administrators
30,650
edits
Changes
Jump to navigation
Jump to search
mLine 2:
Line 2: − − There are two main types of cells: prokaryotic<ref name="spell">Also spelled ''procariotic'' or ''procaryotic'' and ''eucariotic'' and ''eucaryotic''.</ref> cells, which lack a nucleus, and eukaryotic<ref name="spell" /> cells, with a nucleus separated from cytoplasm by a nuclear membrane. each cell contains a complete copy of the organism's [[genome]]. Line 11:
Line 9: − + + +
types of cells
{{quotebox|The cell is so enormously complex that it makes a spaceship or a supercomputer look rather low-tech in comparison. --[[Phillip E. Johnson]] [http://www.pbs.org/wgbh/nova/id/defense-id.htm]}}
{{quotebox|The cell is so enormously complex that it makes a spaceship or a supercomputer look rather low-tech in comparison. --[[Phillip E. Johnson]] [http://www.pbs.org/wgbh/nova/id/defense-id.htm]}}
A [[bacterium]] is a simple cell without a [[nucleus]] to protect its [[genetic information]].
A [[bacterium]] is a simple cell without a [[nucleus]] to protect its [[genetic information]].
There is no consensus on the exact number of cells in a human body, though the number ranges from 10 to 100 trillion cells.<ref>Wile, Jay L. ''Exploring Creation With General Science''. Anderson: Apologia Educational Ministries, Inc. 2000</ref>
There is no consensus on the exact number of cells in a human body, though the number ranges from 10 to 100 trillion cells.<ref>Wile, Jay L. ''Exploring Creation With General Science''. Anderson: Apologia Educational Ministries, Inc. 2000</ref>
==Components of a Cell==
==Types of cells==
There are two main types of cells: prokaryotic<ref name="spell">Also spelled ''procariotic'' or ''procaryotic'' and ''eucariotic'' and ''eucaryotic''.</ref> cells, which lack a nucleus, and eukaryotic<ref name="spell" /> cells, with a nucleus separated from cytoplasm by a nuclear membrane. each cell contains a complete copy of the organism's [[genome]].
A eukaryotic cell is divided into a number of membrane bound compartments known as [[organelles]], each with its own structure and function. In a typical cell these components are:
A eukaryotic cell is divided into a number of membrane bound compartments known as [[organelles]], each with its own structure and function. In a typical cell these components are: