View source for Cell (Biology)

==Key Stage 3==
===Meaning===
[[File:Cell.png|right|300px|thumb|A picture of a single animal cell at x1000 magnification.]]
A '''cell''' is the smallest living part of all living things.

===About Cells===
: '''Cells''' cannot be seen with the naked eye. You need a [[microscope]] to see them.
: Every living thing is made of '''cells''' but not all '''cells''' are the same.
:'''Cells''' are made of smaller parts:
:*[[Cell Membrane]] - Controls what goes in and out of a [[Cell (Biology)|cell]].
:*[[Cell Wall]] - Protects the [[Cell (Biology)|cell]] and allows them to keep their shape.
:*[[Chloroplast]]s - Produces food for a [[Cell (Biology)|cell]] using [[photosynthesis]].
:*[[Cytoplasm]] - A jelly-like [[substance]] where [[Chemical Reaction|chemical reactions]] take place.
:*[[Mitochondria]] - Where [[respiration]] takes place.
:*[[Nucleus]] - Controls the activities of the [[Cell (Biology)|cell]] and contains the [[DNA]].
:*[[Permanent Vacuole]] - Stores [[Cell (Biology)|cell]] sap.

: [[Plant Cell]]s and [[Animal Cell]]s made of some different parts.
: All '''cells''' have [[cytoplasm]] and a [[cell membrane]]
: Both [[Animal Cell]]s and [[Plant Cell]]s have a [[nucleus]] and [[mitochondria]].
: Only [[Plant Cell]]s have [[chloroplast]]s, a [[Cell Wall|cell wall]] and a [[Permanent Vacuole|permanent vacuole]]

{| class="wikitable"
|-
|[[File:AnimalCellvsPlantCell.png|center|600px]]
|-
| style="height:20px; width:200px; text-align:center;" |An [[Animal Cell]] on the left and a [[Plant Cell]] on the right.
|}

===Examples===
{| class="wikitable"
|-
|[[File:OnionCells.png|center|200px]]
|[[File:MuscleCells.png|center|200px]]
|[[File:Euglena.png|center|200px]]
|-
| style="height:20px; width:200px; text-align:center;" |The '''cells''' in an onion stained blue.
| style="height:20px; width:200px; text-align:center;" |Muscle '''cells''' stained pink.
| style="height:20px; width:200px; text-align:center;" |A single '''celled''' [[organism]] called a [[Euglena]] that is green because of the chlorophyll inside.
|-
|[[File:Lymphocytes.png|center|200px]]
|[[File:LeafCrossSection.png|center|200px]]
|[[File:SpermCells.png|center|200px]]
|-
| style="height:20px; width:200px; text-align:center;" |4 White blood '''cells''' stained purple surrounded by several red blood '''cells'''.
| style="height:20px; width:200px; text-align:center;" |Several different types of plant '''cell''' found in a [[leaf]].
| style="height:20px; width:200px; text-align:center;" |Sperm '''cells''' stained purple and shown under a [[microscope]].
|}

==Key Stage 4==
===Meaning===
A '''cell''' is the smallest [[Alive|living]] part of an [[organism]].

===About Cells===
: '''Cells''' can be divided into two main groups [[Eukaryotic Cell]]s, which contain [[membrane]] bound [[organelle]]s, and [[Prokaryotic Cell]]s which do not contain [[membrane]] bound [[organelle]]s.

===About Cells===
: '''Cells''' cannot be seen with the naked eye. You need a [[microscope]] to see them.
: Every living thing is made of '''cells''' but not all '''cells''' are the same.
:'''Cells''' are made of smaller parts:
:*[[Cell Membrane]] - A [[Partially Permeable Membrane|selectively permeable membrane]] which controls what goes in and out of a [[Cell (Biology)|cell]].
:*[[Cell Wall]] - Protects the '''cell''' and allows them to keep their shape.
:*[[Chloroplast]]s - Produces food for a '''cell''' using [[photosynthesis]].
:*[[Cytoplasm]] - A jelly-like [[substance]] where [[Metabolic Process|metabolic processes]] take place.
:*[[Mitochondria]] - Where [[respiration]] takes place.
:*[[Nucleus]] - Controls the activities of the '''cell''' and contains the [[DNA]].
:*[[Permanent Vacuole]] - Stores '''cell''' sap.
:*[[Ribosome]]s - The areas of [[Protein Synthesis|protein synthesis]] in the '''cells'''.
:[[Plant Cell]]s and [[Animal Cell]]s made of some different parts.
:All '''cells''' have [[cytoplasm]] and a [[cell membrane]]
:Both [[Animal Cell]]s and [[Plant Cell]]s have a [[nucleus]] and [[mitochondria]].
:Only [[Plant Cell]]s have [[chloroplast]]s, a [[Cell Wall|cell wall]] and a [[Permanent Vacuole|permanent vacuole]]
{| class="wikitable"
|-
|[[File:AnimalCellvsPlantCell.png|center|600px]]
|-
| style="height:20px; width:200px; text-align:center;" |An [[Animal Cell]] on the left and a [[Plant Cell]] on the right.
|}

===Examples===
{| class="wikitable"
|-
|[[File:OnionCells.png|center|200px]]
|[[File:MuscleCells.png|center|200px]]
|[[File:Euglena.png|center|200px]]
|-
| style="height:20px; width:200px; text-align:center;" |The '''cells''' in an onion stained blue.
| style="height:20px; width:200px; text-align:center;" |Muscle '''cells''' stained pink.
| style="height:20px; width:200px; text-align:center;" |A [[unicellular]] [[organism]] called a [[Euglena]] that is green because of the [[chlorophyll]] inside.
|-
|[[File:Lymphocytes.png|center|200px]]
|[[File:LeafCrossSection.png|center|200px]]
|[[File:SpermCells.png|center|200px]]
|-
| style="height:20px; width:200px; text-align:center;" |4 White blood '''cells''' stained purple surrounded by several red blood '''cells'''.
| style="height:20px; width:200px; text-align:center;" |Several different types of plant '''cell''' found in a [[leaf]].
| style="height:20px; width:200px; text-align:center;" |Sperm '''cells''' stained purple and shown under a [[microscope]].
|}

==Beyond the Curriculum==
{{#ev:youtube|https://www.youtube.com/watch?v=B_zD3NxSsD8}}