Biology

=Biology= Chapter 7 Links [] =**Chapter 2**= =**Cell Biology**= []

[|UTUBE Cellular Biology]

[|How the cell works] [|utube cell]

[|Unicelluar Biology]
(1) Having or consisting of only one [|cell]. (2) Pertaining to an organism whose functions are all carried out within one [|cell]. Examples of organisms that are unicellular are [|microorganisms] such as [|bacteria] and some [|algae] such as [|diatoms].

Multicellular
Having or consisting of many [|cells] or more than one [|cell] to perform all vital functions. Examples of [|organisms] that are //multicellular// are humans, animals and plants.

Archaea
Fossil range: [|Paleoarchean] - Recent || //[|Halobacteria]// sp. strain NRC-1, each cell about 5 μm in length || =Bacteria=
 * ~ Archaea
 * [[image:http://upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Halobacteria.jpg/200px-Halobacteria.jpg width="200" height="179" caption="Halobacteria sp. strain NRC-1, each cell about 5 μm in length." link="http://en.wikipedia.org/wiki/File:Halobacteria.jpg"]]
 * [[image:http://tbn1.google.com/images?q=tbn:vKY5-oD2JlIi-M:http://www.ict-science-to-society.org/Pathogenomics/images/bacteria_cell.jpg width="99" height="127" link="http://images.google.com/imgres?imgurl=http://www.ict-science-to-society.org/Pathogenomics/images/bacteria_cell.jpg&imgrefurl=http://www.ict-science-to-society.org/Pathogenomics/bacteria.htm&usg=__6uRxz0tUKn9vOM3IGzHjQ7_R7hg=&h=450&w=350&sz=38&hl=en&start=1&um=1&tbnid=vKY5-oD2JlIi-M:&tbnh=127&tbnw=99&prev=/images%3Fq%3Dbacteria%252Bcell%26hl%3Den%26safe%3Dactive%26rlz%3D1T4GGIE_enUS312%26sa%3DX%26um%3D1"]] || [[image:http://tbn0.google.com/images?q=tbn:nUbkwQIwr9rVbM:http://imagecache.allposters.com/images/pic/JAG/03-PS05-3~Bacteria-Cell-Posters.jpg width="124" height="93" link="http://images.google.com/imgres?imgurl=http://imagecache.allposters.com/images/pic/JAG/03-PS05-3~Bacteria-Cell-Posters.jpg&imgrefurl=http://www.allposters.es/RedirectLocale.asp%3Fdom%3D0%26url%3D%252Fsp.asp%253Fsearch%253D%2526c%253Dc%2526apnum%253D838248%26lang%3D1&usg=__yqZ1OP8EzULVrz8XpmNKnEDpGyI=&h=300&w=400&sz=52&hl=en&start=2&um=1&tbnid=nUbkwQIwr9rVbM:&tbnh=93&tbnw=124&prev=/images%3Fq%3Dbacteria%252Bcell%26hl%3Den%26safe%3Dactive%26rlz%3D1T4GGIE_enUS312%26sa%3DX%26um%3D1"]] || [[image:http://tbn0.google.com/images?q=tbn:QVdkjHOe9NSjkM:http://www.rkm.com.au/CELL/Bacteria/bacterialimages/Bacterial-Cell-400.jpg width="97" height="132" link="http://images.google.com/imgres?imgurl=http://www.rkm.com.au/CELL/Bacteria/bacterialimages/Bacterial-Cell-400.jpg&imgrefurl=http://www.rkm.com.au/BACTERIA/bacterial-cell.html&usg=__LRwyxNbgc6sXjhy85l3hphWbTwA=&h=542&w=400&sz=35&hl=en&start=3&um=1&tbnid=QVdkjHOe9NSjkM:&tbnh=132&tbnw=97&prev=/images%3Fq%3Dbacteria%252Bcell%26hl%3Den%26safe%3Dactive%26rlz%3D1T4GGIE_enUS312%26sa%3DX%26um%3D1"]] || [[image:http://tbn2.google.com/images?q=tbn:KJmGdjU6C1ORhM:http://morayeel.louisiana.edu/SeaweedsLab/Gavio/bacterial%2520cell%2520copy width="150" height="111" link="http://images.google.com/imgres?imgurl=http://morayeel.louisiana.edu/SeaweedsLab/Gavio/bacterial%2520cell%2520copy&imgrefurl=http://floriascience.spaces.live.com/&usg=__JQVecaIj-NbOzqueQcAqCahvL0A=&h=760&w=1030&sz=284&hl=en&start=4&um=1&tbnid=KJmGdjU6C1ORhM:&tbnh=111&tbnw=150&prev=/images%3Fq%3Dbacteria%252Bcell%26hl%3Den%26safe%3Dactive%26rlz%3D1T4GGIE_enUS312%26sa%3DX%26um%3D1"]] || [[image:http://tbn0.google.com/images?q=tbn:Alo0GYGNoJ8WUM:http://files.turbosquid.com/Preview/Content_on_12_14_2004_01_46_14/bacteria%2520cell%25204.jpg31f2631e-f2a2-4460-84f3-5830294cc7cdLarge.jpg width="124" height="124" link="http://images.google.com/imgres?imgurl=http://files.turbosquid.com/Preview/Content_on_12_14_2004_01_46_14/bacteria%2520cell%25204.jpg31f2631e-f2a2-4460-84f3-5830294cc7cdLarge.jpg&imgrefurl=http://www.turbosquid.com/FullPreview/Index.cfm/ID/249447&usg=__Rve4ZwKu14a1uoAQxKm3u50nSsI=&h=400&w=400&sz=30&hl=en&start=5&um=1&tbnid=Alo0GYGNoJ8WUM:&tbnh=124&tbnw=124&prev=/images%3Fq%3Dbacteria%252Bcell%26hl%3Den%26safe%3Dactive%26rlz%3D1T4GGIE_enUS312%26sa%3DX%26um%3D1"]] ||
 * **bacteria cell** structure350 x 450 - 38k - jpg ||

Plants


One Kingdom of Both Unicellular and Multicellular Protista =Protista — Algae, Protozoa, Slime Molds, and Water Molds= A dinoflagellate in motion. Courtesy of [|Dinoflagellates] by Jean-Marie Cavanihac, France. Protists are eukaryotic creatures , meaning their DNA is enclosed in a nucleus inside the cell (unlike bacteria, which are prokaryotic  and have no nucleus to enclose their DNA. They’re not plants, animals or fungi, but they act enough like them that scientists believe protists paved the way for the evolution of early plants, animals, and fungi. Protists fall into four general subgroups: unicellular algae, protozoa, slime molds, and water molds. ||  ||   || PROTISTA OF NOTE ||
 * [[image:http://www.microbeworld.org/images/meetmicros/protista/p_dinoani.gif width="311" height="171" caption="Animated gif of a dinoflagellate moving around using its flagellum"]]
 * Green algae grows in masses that form slick, green scum on pond surfaces. Its ancestors from 500 million years ago probably gave rise to today's multicellular plants.

//Plasmodium vivax,// the parasite that causes malaria, lives part of its life cycle in mosquitoes and the other part in human hosts where it infects and ruptures blood cells in large numbers.

//Phytophthora infestans// is the water mold responsible for the Great Potato Famine that killed nearly a million people in Ireland in 1846–1847. ||

Living Things Divided into Two Major Groups Prokaryotes (pro-kary-ote) [|Prokaryotes vs. eukaryotes] Eukaryptes (u-kary-ote)